ComfyUI Higgsfield Opensource Challenge The analysis ← Build log

The analysis

Open Source Higgsfield — competition brief

Prepared: 2026-10-29, ~16:15 America/Los_Angeles · Deadline: Friday 2026-10-30, 09:00 PT Countdown at time of writing: ~16 hours 45 minutes.


Headline summary

Comfy Org is running a two-week, $25,000-prize open-source build competition called Open Source Higgsfield. The premise, in Comfy's own words, is that "Higgsfield promised to open source their entire platform. They didn't, so let's help them." Entrants are asked to rebuild Higgsfield's most popular consumer apps — named explicitly as Genjutsu and Cinema Studio — as working, open-source apps on the Comfy Developer Platform, and to publish the repo.

Six things matter most for Magieva, and four of them contradict or complicate the event page's own summary:

  1. The premise is a fact-check failure. Higgsfield never open-sourced its platform, and no source located shows it ever promised to. The September 2026 viral claim conflated Higgsfield's Apache-2.0 LLM-training/GPU-orchestration repo (higgsfield-ai/higgsfield, now archived) with its commercial studio, which remains closed. Comfy's own launch post states the non-open-sourcing as the reason for the competition. The competition is not affiliated with, endorsed by, or licensed by Higgsfield — the LA Build Night page says so explicitly.
  2. There is an active legal dispute. Multiple secondary sources report that Higgsfield served Comfy Org with a cease-and-desist on the evening of 2026-10-28, demanding the challenge be taken down within 48 hours over trademark use and the likeness of CEO Alex Mashrabov, and that Comfy publicly refused on 2026-10-29 (today). I could not read the primary Reddit disclosure — it is JS-blocked to this tooling — so treat the C&D as REPORTED, NOT INDEPENDENTLY VERIFIED. It is nonetheless the single largest risk to the event proceeding as advertised.
  3. The "four inspiration prompts" are three apps, and they are Comfy's own, not Higgsfield's. The page shows three cards — Cinematic Studio, Re-shoot a video, Openjutsu — each with a title and a tagline. The task's fourth string ("Re-shoot from any angle") is the Re-shoot card's tagline counted separately. All three are Comfy-built reference apps on comfy.org/hub, with public MIT repos under Comfy-Org/. They are the intended starting templates, not Higgsfield products. There is no Higgsfield app called "Re-shoot" — that name belongs to an unrelated third-party iOS app.
  4. "Openjutsu" is a pun on Genjutsu. Higgsfield's Genjutsu (launched 2026-08-31) is a video-to-video character/object replacement app. Comfy's Openjutsu is its open rebuild. The LA Build Night page calls the app "Genjutsu"; the SF page and the hub call it "Openjutsu" — the same target under two names.
  5. The bonus categories and the Open Weights Only category are in tension — and the licence axis makes it worse. FLUX 3 video is Cloud/API-only with "open weights coming soon", so a "Built with FLUX" entry cannot also be Open-Weights-Only. MiniMax H3 looks dual (open weights and a partner node) but its community licence excludes the United States as a territory and requires a $5,000/month licence for local commercial use — so the H3 bonus also points at the hosted path. Only the LTX bonus ($2,000 cash) stacks cleanly with Open Weights Only. Separately, the only fully unencumbered open video family is Wan 2.1/2.2 (Apache-2.0); LTX is revenue-capped at $10M and FLUX 3 Image Klein at ~$5M.
  6. Higgsfield's actual model is a closed third-party one. Cinema Studio 4.0 runs on Seedance 2.5 (ByteDance) — stated in Higgsfield's own help centre. Every Higgsfield-branded model (Soul, Soul Cinema, DoP, Speak, Genjutsu, MS Image) is closed and proprietary, and Higgsfield has a real self-serve API (launched 2026-09-16) that resells Kling, Seedance, Wan 3.0, MiniMax H3 and LTX 2.5 Pro. There is no Higgsfield model or inference stack to fork — a rebuild is a from-scratch reimplementation of the product surface on open models.

Competitive reality check: at least one substantial rival entry is already public. Freefield (MIT) reportedly rebuilds ~95 of Higgsfield's ~129 tools as ~117–120 open-weight ComfyUI workflows, published from 2026-10-27, and a separate community repo D3voz/openjutsu implements the Genjutsu-style swap. Comfy's own comfy-openjutsu reference repo already has ~53 GitHub stars. The "obvious" rebuilds are taken; differentiation has to come from execution quality, the interface, or a category the crowd has ignored.


Rules and requirements

Sourced from the event page's rendered accordion content, which is not visible in the page's static text — it lives in Comfy's i18n bundle (eventChallenge.* keys in /_website/translations.BotHOeuL.js). The submission form's own field definitions corroborate it.

Item Requirement Source
DeadlineFriday 2026-10-30, 09:00 PT (America/Los_Angeles, PDT = UTC−7, i.e. 16:00 UTC). Stated three ways: "Submission window closes: October 30 · 9am PT", "Submit before Friday 10/30 at 9am PT", "Submit by October 30."Event page timeline; submission form welcome screen
Is the form open?Yes, as of 2026-10-29 ~16:15 PT. Both Typeform forms return HTTP 200 with live field definitions and no closed state. Not independently confirmed that Typeform will accept a response at 08:59 PT.Live fetch of both forms
Build platform"Your work must be built with ComfyUI. Run it however you like: entirely local, Comfy Cloud, the Developer Platform, Comfy Router, the Comfy SDK, or any mix of them."eventChallenge.requirement1
RepoPublic GitHub repo containing app code, workflow files, an open-source license, and instructions to run it locally. "Enough setup detail that someone else can run it on their own machine."requirement2; enterRepoBody; submission form
Demo videoRequired. Two minutes max. "In case we can't get it running ourselves." Judged on content, not production quality.enterDemoBody; FAQ faqDemoBody
Live linkOptional but "strongly encouraged" — deployed app or endpoint. Not shared publicly. Judges expect ~5–10 runs total across the judging period; rate-limiting and spend caps are explicitly permitted.Submission form field description
Social postRequired. Link the demo video on Reddit, X, Instagram, LinkedIn, YouTube or TikTok, tagging #OpenSourceHiggsfield.enterSocialBody; submission form
Other tools"Any other tools, models, or techniques you want to combine with it are fair game and must be explained in your demo video."requirement3
Partner nodesAllowed in every category except Open Weights Only. FAQ: "You may use partner models; only the Open Weights Only category requires open-weights models with no partner nodes or closed-source APIs."faqLicenseBody
"Open Weights Only" — exact testSubmission form: "Yes means every model, node and dependency is open-weights or open-source, with no closed API model in the critical path. Rented GPUs still count." So renting a GPU is fine; calling a closed API is not.Submission form, "Is your stack fully open?"
Content rules"All submissions must be lawful, SFW, and must not contain unlicensed IP or likenesses."requirement4
Rights grantBy submitting you agree that ComfyUI, Runpod, LTX, Black Forest Labs and MiniMax may feature your work with credit across their channels.requirement5
Entry limit"One submission per person." Also a mandatory checkbox: "This is my only submission."requirement6; form Agreements
Team entriesNot addressed anywhere. No team/individual distinction, no team-size rule, no per-team vs per-person entry rule. The entry limit is phrased per person, which implies a team of N could in principle file N entries — but that is an inference, not a stated rule. UNVERIFIED.Absence across all pages
Eligibility / geographyNot stated. No residency, age, or jurisdiction restriction found. The submission form collects Country (required) for prize shipping.Absence
Build Night attendanceNot required. "The online competition and the Build Nights are separate."faqEventBody
Creator Feature TermsThe form says "See here: Creator Feature Terms referenced in (C)" — but the link is not a link, and comfy.org/creator-feature-terms/ returns 404. The terms referenced by a mandatory agreement are not retrievable.Submission form; 404 check
Judging runsThe live-link field warns judges will run the app ~5–10 times. Budget for that, or omit the link.Submission form

What the submission form actually asks for

Field-by-field, from the live Typeform definition (form.typeform.com/to/V1dSQrkS):

Form defect worth noting: the Social post link field's helper text is a verbatim copy of the Live link field's text ("We know a live link costs you money… Expect roughly 5-10 runs…"). The social-post field has no correct description. Cosmetic, but it is evidence the form was assembled quickly.

What "sign up" gives you


Prizes and categories

Total advertised: $25,000 ("total worth in prizes"). Note the arithmetic: $10,000 + $2,000 + $1,000 + $1,000 + (10 × $250 = $2,500) = $16,500 cash/credits, plus 3× RTX 5090 and the FLUX tiering. The $25,000 headline is a valuation, not a cash pool.

Category Award Exact stated criterion
Best Overall$10,000 cash"Best overall build. Every entry is automatically considered." No separate opt-in.
Most InnovativeGeForce RTX 5090"An app that's never been done, novel custom node packs or uses of ComfyUI. Demo video must explain why the submission is innovative."
Most ViralGeForce RTX 5090"Delightful to use and made to be shared."
Open Weights OnlyGeForce RTX 5090"No partner nodes or closed-source APIs, open-weights models only." Form definition: every model, node and dependency open-weights or open-source, no closed API model in the critical path; rented GPUs count.
10 Runner Ups$250 in Comfy Credits eachNo stated criterion.
VFX Workflow Built with LTX$2,000 cash"LTX must be the core video model in the workflow to qualify."
Built with FLUX$1,000 / $500 / $250 in Flux API credits (tiered)"FLUX 3 must be the core model in the workflow to qualify."
Built with MiniMax H3$1,000 in API credits"MiniMax H3 must be the core model in the workflow to qualify."

Stacking: "Each entry is eligible for both a main category and a model-provider bonus category." So one entry can win Best Overall and an LTX bonus. It is not stated whether one entry can win multiple main categories (e.g. Most Innovative and Open Weights Only) — assume not, but UNVERIFIED.

Contradictions and gaps in the prize copy:


Judging

Who judges: the internal Comfy Org team. No named judges, no published panel, no scoring rubric, no weighting, and no tie-break rule were found on any Comfy page, form, or the launch post. Multiple secondary sources describe it as Comfy-team judging; none name an individual. Treat the judging panel as UNPUBLISHED.

The only published judging philosophy is the FAQ answer on demo videos:

"We're judging the work, not your video editing or quality. The best demo shows your work in action with an explanation of how it was built."

What that implies operationally (inference, not stated):


The four inspiration prompts, decoded

Correction to the brief's framing. The event page does not present four prompts. It presents three app cards, each with a title and a tagline:

Card Title Tagline Link
1Cinematic Studio"Direct your shot like a film set"/hub/apps/cinematic-studio/
2Re-shoot a video"Re-shoot from any angle"/hub/apps/reshoot/
3Openjutsu"Swap a character in a video"/hub/apps/openjutsu/

The task's list of four splits card 2 into its title and tagline. There is no fourth app. The section's own lead text describes the space, not four products: "Start with a recognizable output: a performance effect, a cinematic camera move, or a music-video transformation."

Critically, all three are Comfy's own reference apps, not Higgsfield products. Each has a public MIT repo under Comfy-Org/, described as "clonable … and development guide". They are the intended templates. The hub listing labels them "Comfy app". The event page's own copy calls them "inspiration prompts for your entry" — i.e. build something like this, not rebuild this Higgsfield product.

Cinematic Studio — "Direct your shot like a film set"

Re-shoot a video — "Re-shoot from any angle"

Openjutsu — "Swap a character in a video"


Higgsfield apps to rebuild

Higgsfield's product surface, from higgsfield.ai/apps (48 app pages) plus its product pages. Marketing copy is labelled as such; model attributions are the weakest claims here.

Cinema Studio (4.0)

Genjutsu / Genjutsu Lite — the app behind "Openjutsu"

The camera-angle family — Angles 2.0, Shots, Zooms, Camera Motion

Important correction: there is no Higgsfield app named "Re-shoot." That name belongs to an unrelated third-party iOS app (ReShoot: AI Face Photo Editor by HUBX). The competition's "Re-shoot a video" card is Comfy's own app name, not a Higgsfield product. The real Higgsfield equivalents are:

Recast / Character Swap 2.0 / Face Swap — three distinct tools

Soul — the image model family

Speak — talking avatar / lip sync

Popcorn — storyboard / multi-shot

Effects — the VFX preset library

Draw-to-Video — exists, renamed

Product Photoshoot — exists as Marketing Studio

Other named Higgsfield apps (competition targets)

Full nav as fetched from higgsfield.ai on 2026-10-29: Explore · Image · Video · Audio · MCP · API · Genjutsu (New) · Content Factory (New) · Playable (New) · AI Influencer · Academy (New) · Katana · ChatGPT Plugin · Ads Studio · Effects · Cinema Studio · Contests · Marketing Studio · Supercomputer · Edit · Community · Plugins · Canvas · Originals · Pricing · Enterprise. Studios: Cinema Studio, Marketing Studio, Lipsync Studio, Higgsfield Popcorn, Higgsfield Canvas, Soul, Soul 2.0, Soul ID, Character, Soul Cinema. Platform: Supercomputer, AI Motion Designer, MCP/CLI, API, Collab, Games, Reference, Extension.

App What it does Input → Output Model Pricing
Content Factory (launched 2026-10-22)Faceless video/campaign generator. Writes a script scene-by-scene, picks characters, generates visuals + voiceover, edits the final video.One "What if…" prompt + optional TikTok/IG reference → 15 s–5 min video, 1–4 episodes per run, 50+ presetsNot published. UNVERIFIED15.75 credits / 15 s, 63 / 1 min, 315 / 5 min
Playable (Games + Ads, launched 2026-10-25)Playable Games (all plans, 2D/3D, on Higgsfield or Claude via MCP). Playable Ads (Enterprise only; exports a single .html ≤5 MB to 9 ad networks, 8 genres).Game description + genre + dimension + optional up to 40 images, 1 video 3–60 s, 20 audio files, 3 HTML/ZIP → interactive playableNot published. UNVERIFIEDNot published
Katana (launched 2026-10-08)Claude skill via Higgsfield MCP (https://mcp.higgsfield.ai/mcp). Rebuilds a reference video edit with your assets — matches shot order, pacing and cut placement on music.Reference video or library preset + up to 5 photos + optional instructions → new video in chat + AssetsRuns on Higgsfield modelsSame credits as higgsfield.ai
AI InfluencerPersistent virtual personas (age, gender, ethnicity, skin, body type) → paired portrait/full-body shots; then motion retargeting from presets or 3–30 s reference clips at 1080p. Also a ChatGPT extension.Character params + motion reference → 1080p videoRuns on the Genjutsu engineNot published
Ads StudioConversion-focused ad engine. Ingests product URLs or brand assets (logos, colours, value props) → batches of multi-angle static ads or short-form video (UGC talking heads, product showcases).URL/assets → ad creativesNot publishedNot published
CanvasInfinite spatial node-based workspace: orchestrate assets, inpaint/outpaint, arrange shot lists, connect models/images/videos.Assets + nodes → compositionsMultipleAlways deducts credits (excluded from Unlimited)
SupercomputerAgentic orchestrator — "one superagent for your entire creative stack." Auto-selects among 35+ models and runs installable Skills.Natural-language brief → finished assetsGPT-6 Astra / GPT-6.1 Terra (changelog 2026-10-27)Always deducts credits
Edit / Edit Image (9 tools)Layer Decomposition, Edit Text, Remove Background, Expand & Crop, Upscale (2×–16×, 1080p–8K), Colour Grading, Enhancer (AI Skin Enhancer), Relight, Angles.Image + tool params → edited imageNot publishedLayer Decomposition 2K/8 layers = 24 credits ($1.20); Edit Text 3.5; Remove Background 1; layer separation 15
Small appsShots (9 shots from 1 image), Zooms (9 zoom levels, Pro), Transitions, Behind the Scenes, What's Next? (8 narrative possibilities from 1 scene), Expand image (outpaint), Angles 2.0, Colour grading (free), Skin Enhancer, Virality Predictor (predicts hook virality)——Varies

Also in the nav but not detailed: Inpaint, Upscale, Sora 2 Upscale, Mixed Media, AI Motion Designer, Collab, Games, Reference, Extension, ChatGPT Plugin, Academy, Originals, Contests, Plugins, Community.

The most competition-relevant of these, ranked by (recognisability × rebuild feasibility): Genjutsu/Recast (character swap), Angles/Shots/Zooms (camera), Effects/Camera Controls (VFX), ClipCut/Urban Cuts (edit), Relight/Outfit Swap/Style Snap (edit), Popcorn (storyboard consistency), Virality Predictor (novel, and a plausible "Most Viral"/"Most Innovative" play).

No official popularity ranking exists. Third-party inference (weak evidence) puts Cinema Studio #1, Popcorn #2, Genjutsu #3. Higgsfield's own homepage hero — their real prioritisation signal — features Playable, Content Factory, Kling 4.0, Genjutsu Lite, Genjutsu, Seedance 2.5, Supercomputer, Cinema Studio 4.0, MCP for Claude and AI Influencer. Two of the three apps Comfy names are in Higgsfield's own hero rotation, which is a good independent signal that Comfy picked the right targets.

Higgsfield's API and open-source posture

Repo What Licence Stars
higgsfieldFault-tolerant GPU orchestration + ML training framework for billion-to-trillion-param LLMs. Now marked "Public archive."Apache-2.06.3k
skillsAgent skill modules for Claude Code / Cursor / Codex (incl. higgsfield-generate, higgsfield-soul-id, higgsfield-product-photoshoot, higgsfield-brandkit)MIT1.8k
clihiggsfield CLI — models, dubbing, voice, character training, website generationMIT689
higgsfield-clientPython SDKApache-2.0139
higgsfield-jsNode/TS SDKMIT73
higgsfield-video-engineerCode-based films rendered by a WebGPU path tracer on local GPUMIT1
app-templates, terraform-aws-alternat, homebrew-tap, omagotchi, cursor-pluginshadcn registry, AWS NAT HA, Homebrew tap, desktop avatar, Cursor pluginmostly MIT—

The higgsfield repo is the actual subject of the September 2026 viral "Mashrabov open-sourced his startup" claim — an LLM training framework, now archived, not the studio, models or workflows.


ComfyUI building blocks

Cloud vs local vs API

What it is Cost Notes for this competition
Local ComfyUIThe open-source node-graph engine on your own hardware. python main.py, HTTP server on 127.0.0.1:8188.Free (your GPU).The only path to a true Open-Weights-Only entry with no metered cost. Partner Nodes still work locally if you pass an API key in the prompt payload.
Comfy CloudManaged ComfyUI in the browser. Runs on Blackwell RTX PRO 6000, 96 GB VRAM.Free tier: 5 free runs on real GPUs + free Comfy Agent credits for new users. Standard $16–20/mo (50,400 credits/yr), Creator $28–35 (88,800), Pro $80–100 (253,200), Team $630–700 (1,772,400). Yearly billing is up to 20% off.Credits cover active GPU time and Partner Nodes. Idle time is not charged. Concurrency: Standard 1, Creator 3, Pro 5. Max runtime: 30 min (Standard/Creator), 1 h (Pro). Up to 100 queued.
Comfy API (Developer Platform)Package a workflow's custom nodes, models and Python deps into a reproducible Build, deploy as an autoscaling endpoint.GPU-second billing. RTX PRO 6000 96 GB $3.49/hr (736.39 credits/hr); MIG 48 GB $1.75/hr; H100 SXM $6.23/hr; H200 SXM $7.71/hr; B200 $11.23/hr. Network storage $0.20/GB/mo.This is what both comfy-reshoot and comfy-openjutsu use. comfy build init / push --release --target linux/nvidia then comfy deploy refs compute.
Comfy RouterOne API for thousands of hosted models (Seedance, MiniMax H3, Nano Banana, GPT-Image, FLUX…). client.models.run("seedance/v2-pro", prompt=…).Per-model, published in the partner-node pricing table.What comfy-cinematic-studio uses. Closed API — disqualifies an entry from Open Weights Only.
Comfy SDKcomfy-sdk (PyPI) / @comfyorg/sdk (npm), current release 0.5.0. Python ≥3.10, Node ≥22. Two surfaces: client.models (Router) and client.workflows / client.assets / client.jobs (Cloud + Comfy API v2).Free; you pay for what it calls.The official app-building client. One API key works for both surfaces.
Comfy MCP / Comfy CLI / Comfy AgentMCP server (cloud or local), comfy-cli (install/manage/generate/run), and an in-app agent.Free tooling.comfy-cli is required for the Build/deploy path.

Key credit facts: API jobs draw from the same monthly credit pool as the Cloud UI — there is no separate API pool. Unused top-ups roll over up to 1 year. All available models can be used for commercial purposes (Comfy's own statement on the pricing page).

The ComfyUI API — concise technical reference

Workflow JSON: two formats. The browser save format (.json) carries node titles, positions, colours, groups. The API format (File → Export Workflow (API)) uses numeric node IDs as keys and omits all layout metadata. Only API format can be submitted. Shape:

{
  "3": {
    "inputs": { "seed": 156680208700286, "steps": 20, "cfg": 8,
                "sampler_name": "euler", "scheduler": "normal", "denoise": 1,
                "model": ["4", 0], "positive": ["6", 0], "negative": ["7", 0],
                "latent_image": ["5", 0] },
    "class_type": "KSampler",
    "_meta": { "title": "KSampler" }
  }
}

Inputs are literals or [node_id, output_index] links. _meta.title is cosmetic. Convert by loading a save-format file in the frontend and re-exporting as API.

Server routes (server.py, search @routes):

Route Method Purpose
/promptPOSTSubmit a prompt. Returns prompt_id + number (queue position), or error + node_errors.
/promptGETCurrent queue status and execution info.
/historyGETQueue history (all).
/history/{prompt_id}GETHistory for one prompt — this is how you retrieve outputs.
/historyPOSTClear history or delete an item.
/queueGET/POSTRead queue; clear pending/running.
/interruptPOSTStop current execution.
/freePOSTUnload specified models to free memory.
/viewGETFetch an output file (many options).
/upload/image, /upload/maskPOSTUpload inputs.
/object_info, /object_info/{node_class}GETNode type schemas.
/models, /models/{folder}GETAvailable model folders/files.
/system_statsGETPython version, devices, VRAM.
/features, /extensions, /embeddings, /workflow_templatesGETCapabilities and registry.
/userdata, /v2/userdata, /usersGET/POST/DELETEUser data files and users.
/wsWebSocketReal-time execution events.

Submission payload with a partner node: add extra_data.api_key_comfy_org to the POST body:

{ "prompt": { … }, "extra_data": { "api_key_comfy_org": "comfyui-…" } }

WebSocket message types (/ws): status (exec_info.queue_remaining), execution_start (prompt_id), execution_cached (nodes), executing (node, prompt_id; node: null = done), progress (node, value, max), executed (node, output — only when a node returns a ui dict, not on every completion), execution_success (prompt_id, timestamp), execution_error, execution_interrupted. Custom message types can be registered with api.addEventListener("my.custom.message", handler) and sent with PromptServer.instance.send_sync(...).

Recommended pattern: submit to /prompt, follow /ws until execution_success, then GET /history/{prompt_id} and fetch files via /view. (The docs' own basic_api_example.py is submit-and-forget; websockets_api_example.py is the recommended WebSocket + history pattern.)

Comfy API v2 (the managed path): POST /api/v2/jobs with { workflow, metadata }; GET /api/v2/jobs?metadata[key]=value (paginated, limit ≤500, next_cursor). Idempotency is reject-on-duplicate, not record-and-replay: a reused Idempotency-Key fails 422 idempotency_key_reuse; recovery is to look up the job, not resubmit. Keys expire after 24 h. A naive retry loop around submit() is a double-bill. Self-hosted ComfyUI serves v2 via comfy-api-proxy on port 8189.

Node packs and models relevant to video

Native in ComfyUI core (no custom pack needed):

Capability Nodes Notes
Camera-controlled videoWanCameraEmbedding, WanCameraImageToVideoWanCameraEmbedding builds a camera trajectory with Plücker embeddings. Presets only: Static, Pan Up/Down/Left/Right, Zoom In/Out, Anti-Clockwise, Clockwise. Advanced intrinsics fx/fy/cx/cy; speed scales rotation and translation. Preset moves, not free orbit — a free-orbit UI needs custom work.
Video editing / control (VACE)WanVaceToVideoVACE-controlled video generation conditioning.
Wan Fun-ControlWan22FunControlToVideo, WanFunControlToVideo, WanFunInpaintToVideoWan 2.2 A14B control and inpainting.
Character animation / swapWanAnimateToVideo, WanAnimate2ToVideo, WanAnimate2CacheReference image + pose/face/control video → animated character. Wan Animate 2 is open source.
First/last frame, context windowsWanFirstLastFrameToVideo, WanContextWindowsManual, WanUni3CControlnetApplyLong-clip stitching and keyframe control.
LTX-VideoLTXV* family — LTXVAddLatentGuide, LTXVAddGeneratedKeyframes, LTXVContextWindows, LTXVDurationPredictor, LTXV Audio VAE *, LTXAVTextEncoderLoader, ModelSamplingLTXV, ModelMergeLTXVLTX 2.5 is open weights and free to run on your own GPU. Native audio VAE nodes.
IC-LoRAGetICLoRAParameters, LTXAddVideoICLoRAGuideThe in-context guide mechanism CrossView-Warp builds on.
FLUX 3 imageFlux3LayoutPromptFLUX 3 Image Klein is open weights; the full FLUX 3 video model is not (yet).

Custom node packs / third-party:

Item Status Relevance
CrossView-Warp (cseti007/ComfyUI-CrossViewWarp) + Cseti/LTX2.3-22B_IC-LoRA-CrossView-Warp_v2Open. IC-LoRA for LTX-Video 2.3 22B.The re-shoot engine. Interactive 3D orbit widget, keyframing with easing, green/yellow reliability zones, MoGe-2 or Depth Anything V2 depth, magenta disocclusion holes, two in-context guides, crossview trigger, optional numba JIT (~10× pre-warp speedup).
Akatz Labs H3 Character Swap (akatz-labs/h3-character-swap-tool)Open.The character-swap engine behind comfy-openjutsu. Needs a patched h3_character_swap node pack, LoRA h3_character_swap_v1.5.
SCAIL-2 (zai-org/SCAIL-2, weights Comfy-Org/SCAIL-2)Open weights, native in ComfyUI core — no custom pack needed. Licence MIT per the HF card vs Apache-2.0 per secondary sources — CONFLICTING. Built on Wan 2.1 14B.The strongest purpose-built open character-swap model. Two modes via replace_mode: Replacement (swap a tracked person for a reference character) and Animation. Replaces skeleton intermediates with In-Context Mask Conditioning + Mode-Specific RoPE + Bias-Aware DPO LoRA. Trained on MotionPair-60K. Weights: fp16 ~32.8 GB, plus fp8_scaled / mxfp8 / NVFP4 / community GGUF. Needs umt5-xxl text encoder, clip_vision_h, wan_2.1_vae, LightX2V 4-step distill LoRA, DPO LoRA, sam3.1_multiplex_fp16. Nodes: WanSCAILToVideo, SCAIL2ColoredMask, plus SAM3 tracking (sam3_video_object, sam3_image_object). 512p or 704p, dims divisible by 32, 81 frames/segment, 5-frame overlap, ceil(total_frames/76) segments. Caveat: WanSCAILToVideo cannot auto-queue all segments — each must be run manually.
Cameraman IC-LoRA (Cseti/LTX2.3-22B_IC-LoRA-Cameraman_v1/_v2)Apache-2.0 community LoRA for LTX-2.3 22B. Built with Lightricks' official ltx-trainer (video_to_v2 strategy), rank/alpha 32/32, 77 curated motion-balanced pairs.Camera motion transfer — takes the camera move from a reference video and applies it to a newly generated scene. No trigger word. Recommended strength 0.7–1.0. Do not put camera-motion words in the prompt — it conflicts with the injected trajectory. Official Hub workflow: "LTX 2.3 Cameraman IC-LoRA".
ComfyUI-CameraReference3D (lovemachine100)Open, v3.0, model-agnostic. Deps (numpy/Pillow/torch) ship with ComfyUI.The strongest "Most Innovative" candidate. Generates exact parametric camera-motion references by flying a trajectory through a neutral grey 3D scene (subject-free references transfer more cleanly — the IC-LoRA reads only motion parallax). 17 base moves plus a timeline DSL for multi-segment moves with guaranteed state continuity (0-48: dolly_in then 48-96: pan_left@0.6 ease_out; easings ease_in_out/ease_in/ease_out/linear/loop). AOV outputs — depth (inverse-depth, ControlNet convention), normal (camera-space), subject_mask (occlusion-aware) — feed Wan VACE, Fun-Control, ControlNet and LTX depth IC-LoRA. Exports a CAMERA_PATH type to Wan Fun-Camera Plücker embeddings (WanCameraImageToVideo.camera_conditions), AnimateDiff-Evolved CAMERACTRL_POSES, and extrinsics JSON — verified bit-identical Plücker output for overlapping presets, and explicitly better than the built-in WanCameraEmbedding's nine straight-line presets. Camera Path From Video (DA3) estimates a clean camera path from any real clip via DA3 multiview, so subject motion no longer contaminates the transfer. Nodes: Camera Reference (3D), Camera Trajectory Export, RenderSplatPath, Camera Path From Video (DA3).
ReCamMaster (KwaiVGI / Kling Team, ICCV'25 Oral)Not native — via kijai's ComfyUI-WanVideoWrapper. Officially ported to Wan 2.1 (Apache-2.0 base). Licence UNVERIFIED.Camera-controlled generative re-rendering of a single video at novel trajectories; also stabilisation, super-resolution, outpainting. Trained on a UE5 multi-camera dataset. Nodes: WanVideoReCamMasterDefaultCamera (10 presets: pan_right/left, tilt_up/down, zoom_in/out, translate_up/down, arc_left/right), WanVideoReCamMasterGenerateOrbitCamera (parametric orbit −180…180°), WanVideoReCamMasterCameraEmbed, ReCamMasterPoseVisualizer (3D trajectory preview before spending GPU time). Weights KwaiVGI/ReCamMaster-Wan2.1. Adoption stayed modest — expect to assemble the workflow rather than load a template.
TrajectoryCrafter (Tencent ARC + CUHK, ICCV'25)No confirmed ComfyUI node pack. Research reference only.Dual-stream conditional video diffusion conditioning on point-cloud renders (geometry) and the source video (fidelity), with Ref-DiT cross-stream exchange. Explicitly positioned as fixing GCD's domain gap and limited trajectory control.
camera-comfyUI (Alexankharin, registry camera-comfyui)Open, auto-installs via install.py.Reprojection / point-cloud / splat toolkit. Nodes: CameraMotionNode, CameraInterpolationNode, CameraTrajectoryNode, SaveTrajectory, LoadTrajectory. Pose via VGGT (~5 GB weights); splats via SHARP + gsplat; CoTracker3 for EstimateTracks. Integrates with Wan-VACE. Pinhole/fisheye/equirectangular reprojection, depth→point cloud, text-guided outpainting in arbitrary views.
In-Context LoRA (ali-vilab, arXiv 2410.23775)MIT (FLUX base licence also applies). Nodes via lrzjason/Comfyui-In-Context-Lora-Utils and SDVN_Comfy_node (IC Lora Layout / IC Lora Layout Crop).The mechanism behind every IC-LoRA here: reference and target are concatenated side-by-side into one wide canvas with a matching mask, and the DiT fills the target half from the reference half's visual tokens. No IP-Adapter-style projector; 20–100 image sets per task suffice. LTX-2.3 extends it to IC-LoRA Union Control (depth + Canny + pose) and ID-LoRA (personalised person from one image + short audio, lip-synced, one pass).
ReActor (Gourieff/ComfyUI-ReActor)SFW-only fork. Licence UNVERIFIED.The classic pixel-level face swap. inswapper_128.onnx (128×128 output → needs CodeFormer/GPEN on top). 0.7.0 removed the InsightFace / C++ build-tools requirement — the historic install blocker. Supports ReSwapper and HyperSwap. Video is frame-by-frame (one regression clocked 81 frames at 22 min on a 4090 before being fixed).
InfiniteYou (ByteDance)Code Apache-2.0, model CC-BY-NC 4.0 — NON-COMMERCIAL.InfuseNet injects identity into FLUX.1-dev/schnell via residual connections — generative face replacement by inpainting. BF16 ~40–43 GB VRAM, FP8 ~24 GB. Disqualifying for any commercial submission despite the permissive-looking repo.
Wan 2.2 / Wan 3.0Wan 2.2 open weights (A14B, Fun-Control, VACE). Wan 3.0 appears Cloud/API-only ("Run Wan 3.0 on Comfy Cloud").Wan 2.2 is the open workhorse; Wan 3.0 is a partner/Cloud model.
MiniMax H3Dual: open weights and partner node. Comfy's own FAQ: "Yes. H3 is available as Open Weights, so you can run it yourself, and through Partner Nodes on Comfy Cloud." Commercial use of local output needs an H3 commercial licence via Comfy.The video model behind both reference video apps. Native stereo audio on every clip; up to 2K; 5–15 s per generation. Local int8 quantisation exists (text encoder is large).
FLUX 3Full FLUX 3 video: Cloud/API only — "Open weights coming soon." FLUX 3 Image Klein is open weights (5.6B, FLUX Kommunity License: free non-commercial; commercial under $5M revenue allowed with conditions; commercial fine-tuning needs a separate licence).The FLUX bonus cannot currently be combined with Open Weights Only unless FLUX 3 Image Klein satisfies "FLUX 3 must be the core model" — which is a judgement call, not a stated rule.
LTX 2.5Open weights, free to run on your own GPU. Partner API nodes also exist (LtxApi25*).The LTX bonus is compatible with Open Weights Only.
SAM 3.1In ComfyUI core (per comfy-openjutsu README).Subject tracking and masking for swap workflows.
MoGe / MoGe-2Depth model used by CrossView-Warp.Metric depth; halves warp error vs Depth Anything V2 in v2.

Partner vs open — the decisive distinction. Comfy's built-in node docs list 322 partner nodes. Confirmed partner (API) nodes include MiniMax H3 (MinimaxHailuo03*), LTX 2.5 (LtxApi25*), FLUX 3 (Flux3*), Wan 2.7 / 3.0 (Wan2*Api, Wan3*Api), plus BFL, Bria, Beeble, Anthropic, Google and others. Using any of these in the critical path disqualifies an entry from Open Weights Only — even where an open-weights sibling of the same model exists, because the node is the closed API. MiniMax H3 and LTX 2.5 are the two cases where you can choose the open-weights route instead. Partner nodes can be disabled entirely at launch with --disable-partner-nodes (or --offline) — a clean way to prove an entry is open-weights-only.

Note the irony: Higgsfield is itself a ComfyUI partner-node provider. The partner list includes Higgsfield alongside Kling, Luma, Runway, Veo, Vidu, Seedance, HeyGen, Topaz and Magnific. Comfy already resells the company whose apps the competition asks you to rebuild.

The licence trap — "open weights" ≠ "open licence"

This is the most under-appreciated risk in the competition, and it is not mentioned on the event page at all. The Open Weights Only category is defined by node type ("no partner nodes or closed-source APIs"), but several models that pass that test carry licences that are revenue-capped, territory-excluded, or non-commercial. For a US-based commercial entrant, two of the three headline open video models have a licensing problem.

Model Node type Licence Commercial reality
Wan 2.1 / 2.2 (incl. VACE, Fun-Control, Fun-Camera, Animate, Animate-2)Native core, open weightsApache-2.0The safest option in the entire brief. No revenue cap, no territory limit, no attribution requirement.
SCAIL-2Native core (WanSCAILToVideo, SCAIL2ColoredMask, SAM3)MIT per the HF model card; Apache-2.0 per secondary coverage — CONFLICTING, verify the LICENSE fileProbably fine; confirm before relying on it.
LTX-2.3 / LTX-2.5Open weights and a partner nodeLTX-2.x Community LicenseFree commercial use only under $10M annual revenue (aggregated across affiliates). LTX-2.5 weights are gated. Transferring fine-tunes may need a paid licence.
MiniMax H3Open weights and a partner nodeMiniMax H3 Community License (eff. 2026-08-02)The biggest trap. Free commercial use only under $20M revenue; excluded territories include the United States, EU, UK and South Korea; mandatory attribution; distilling another model on H3 output is prohibited. Comfy's own docs state that commercial use of locally generated H3 output requires a MiniMax commercial licence, resold only by Comfy, from $5,000/month. Also: only H3-Base (FL2VA and Ref2VA, 768p) is open — H3-Context-IR and H3-Regenerate-2K are API-only, so the API's native 2K output cannot be reproduced locally.
FLUX 3 Image KleinNative core (0.41.0+), open weightsFLUX Kommunity LicenseNon-commercial by default; commercial-output exception for "Qualifying Users" reported at under $5M revenue (UNVERIFIED — read the licence). Weights are gated. Image-only — not a video model.
FLUX 3 Image (flagship) / FLUX 3 VideoPartner node onlyProprietaryAPI-only. Disqualifies Open Weights Only.
Wan 3.0Partner node onlyClosed weights (Alibaba's own card says "Open Source: No")API-only. Disqualifies Open Weights Only.
CrossView-Warp LoRAs (LTX + H3 ports)Community LoRAApache-2.0The LoRA is permissive, but the base model's licence still governs the output.
Cameraman IC-LoRA (LTX-2.3)Community LoRAApache-2.0Same caveat.
In-Context LoRA (ali-vilab)Community LoRAMITFLUX base licence also applies.
MiniMax H3 Turbo LoRAs (lightx2v)Community LoRAApache-2.0Base model licence governs.
InfiniteYou (ByteDance)Community nodeCode Apache-2.0, model CC-BY-NC 4.0NON-COMMERCIAL. A genuine trap — the repo looks permissive and the weights are not.
ReCamMaster, ReActorCommunity nodeUNVERIFIED — repo LICENSE not readVerify before relying on either.

Practical consequence: if the entry is intended to be commercially usable by a US company, the only cleanly licensed open video substrate is Wan 2.1 / 2.2 (Apache-2.0). LTX is acceptable under $10M revenue. MiniMax H3 local use is not licensed for a US entity by default — which means the "Built with MiniMax H3" bonus realistically means the hosted API path, and therefore forfeits Open Weights Only. That is the opposite of what the dual open-weights/partner-node status first suggests.

Is there an official app-building SDK?

Yes — but it is three clonable reference apps plus the SDK, not a single "app framework". This is the most actionable finding in this section.

Artefact What it is Repo
Comfy SDKcomfy-sdk (PyPI) / @comfyorg/sdk (npm), v0.5.0. The official client for Router + Cloud/Comfy API v2.Comfy-Org/comfy-python-sdk, Comfy-Org/comfy-typescript-sdk
comfy-cinematic-studio"A clonable Comfy Router app and development guide." Next.js. Router-only, no workflow. MIT.Comfy-Org/comfy-cinematic-studio
comfy-reshoot"A clonable Comfy workflow deployment app and development guide." Next.js + Comfy API deployment. MIT.Comfy-Org/comfy-reshoot
comfy-openjutsu"A clonable Comfy character-swap app and development guide." Next.js + deployment + Router anchor. MIT.Comfy-Org/comfy-openjutsu
comfy-cliInstall/manage ComfyUI, comfy build init/push --release, comfy deploy refs compute, comfy generate (beta) for partner models, comfy run for Cloud workflows.Comfy-Org/comfy-cli
comfy-api-proxyServes the Comfy API v2 in front of a self-hosted ComfyUI (pip install comfy-api-proxy, port 8189).Comfy-Org/comfy-api-proxy
ComfyUI frontend / extensionsComfyUI_frontend is the official front-end; ComfyUI-React-Extension-Template and cookiecutter-comfy-extension are the extension templates. This is for in-canvas UI, not a standalone end-user app.Comfy-Org/ComfyUI_frontend, Comfy-Org/ComfyUI-React-Extension-Template
Comfy MCP / Comfy Agent / Comfy SkillsMCP server (cloud + local), in-app agent (Cloud GA, Desktop coming), and agent skills.Comfy-Org/comfy-mcp, Comfy-Org/comfy-skills
Comfy RegistryPublish custom nodes to the registry (relevant for the "novel custom node packs" innovation route).Comfy-Org/registry-backend

There is no "workflow-as-app" one-click publisher. The Hub's three apps are hand-built Next.js front-ends. The intended path is: clone a reference app → point it at your workflow or Router model → deploy. comfy-cli's comfy build/comfy deploy is the deployment path; the SDK is the runtime client.


What a winning entry looks like

Evidence-based read, with the reasoning exposed.

Which category is most winnable

1. Open Weights Only (RTX 5090) — the most winnable, and the most defensible. It is the only category with a stated, verifiable, binary test ("every model, node and dependency is open-weights or open-source, with no closed API model in the critical path; rented GPUs still count"). It is also the category most competitors will fail by accident, because the two easiest reference apps (comfy-reshoot, comfy-openjutsu) both ship with a closed model in the critical path — comfy-openjutsu calls GPT Image 2.5 through Router for its anchor frame. Dropping that one call is a one-line change that converts a reference app into an Open-Weights-Only entry. The open stack is genuinely available: SCAIL-2 (character swap), Wan Animate 2, Wan 2.2 VACE/Fun-Control, LTX 2.5 + CrossView-Warp (re-shoot), MiniMax H3 local int8, FLUX 3 Image Klein, SAM 3.1, MoGe-2.

2. VFX Workflow Built with LTX ($2,000 cash) — the best risk-adjusted cash prize. $2,000 cash, no hardware logistics, and the requirement is narrow and checkable: LTX must be the core video model. LTX 2.5 is open weights, so this bonus stacks with Open Weights Only. The re-shoot path (CrossView-Warp is an LTX 2.3 IC-LoRA) is already LTX-centric. A VFX workflow built on LTX + CrossView-Warp can plausibly contend for Best Overall, Open Weights Only and the LTX bonus simultaneously.

3. Best Overall ($10,000) — highest value, lowest predictability. No criterion beyond "best overall build", judged by the Comfy team, with no rubric. Every entry is auto-considered. Winning this is a taste call. The realistic route is to win a category and be the most complete, most polished, most obviously-working build.

4. Most Innovative (RTX 5090) — the only category with an explicit argumentative burden. "An app that's never been done, novel custom node packs or uses of ComfyUI. Demo video must explain why the submission is innovative." The obvious rebuilds are taken (Freefield has ~95 tools; comfy-openjutsu has 53 stars). Innovation here means either a novel custom node pack (e.g. a free-orbit camera node that goes beyond WanCameraEmbedding's nine presets, or a keyframe-interpolating camera trajectory node) or an unexpected use of ComfyUI. This is the highest-variance category.

5. Most Viral (RTX 5090) — a distribution contest, not an engineering one. "Delightful to use and made to be shared." The social post is already mandatory, so the distribution mechanic is built in. This rewards a genuinely one-click, no-setup, instantly-gratifying app — which is in tension with the 96 GB-GPU deployments the reference video apps need.

6. Built with FLUX / Built with MiniMax H3 — neither is a clean Open-Weights-Only play. Both bonuses pay API credits, which is itself a signal that they point at the hosted path. FLUX 3 video is Cloud/API-only today, so the FLUX bonus cannot coexist with Open Weights Only. MiniMax H3 looks compatible because it ships open weights — but its community licence excludes the United States as a territory and requires a paid licence (resold only by Comfy, from $5,000/month) for local commercial use. For a US entrant, the H3 bonus realistically means the hosted API, which forfeits Open Weights Only. The only bonus that stacks cleanly with Open Weights Only is LTX ($2,000 cash) — because LTX ships open weights, the prize is cash, and the LTX licence is acceptable under $10M revenue.

What the entry must demonstrate

  1. A working app, not a workflow export. The brief explicitly distinguishes "a working creative app with a usable interface and example outputs" from a workflow export. The reference apps are Next.js front-ends with a real UI.
  2. A public repo with an OSI licence, the workflow files, and local setup instructions that actually work. The judges may try to run it. comfy-reshoot's README is the standard to match: exact git clone / .env.local / npm ci / npm run dev, plus the comfy build/comfy deploy sequence.
  3. A ≤2-minute demo video showing the app running and explaining how it was built. Not a montage. The FAQ is explicit that the work is judged, not the editing — but the video is the only artefact guaranteed to be watched.
  4. A live link, if you can afford it. Judges will run it 5–10 times. Budget for that or omit it. A dead link is worse than no link.
  5. The mandatory social post tagging #OpenSourceHiggsfield.
  6. For Open Weights Only: a stack-openness story you can defend line by line. Every model, node and dependency. Rented GPUs are fine; closed APIs are not. The form asks you to declare this, so an overclaim is a disqualification risk.
  7. For Most Innovative: an explicit innovation argument in the video. Name the novel node pack or the novel use, and show why it is new.

The strategic read

The highest-expected-value play is a single entry that is simultaneously (a) Open-Weights-Only clean, (b) LTX-core, and (c) a genuinely usable app — because those three are mutually compatible, the criteria are checkable, and the prize stack is $10,000 + RTX 5090 + $2,000. The natural target is camera re-shoot built on LTX 2.3/2.5 + CrossView-Warp, or character swap built on SCAIL-2 / Wan-Animate-2 with the closed anchor removed. Both are rebuilds of apps the event page itself names, both have open engines, and both have a reference app to clone.

But the licence axis cuts across that plan, and it is the thing almost nobody will check. If the deliverable is meant to be commercially usable by a US company, the substrate choice is constrained:

So the two candidate architectures are: (1) LTX-core — best for the LTX cash bonus and the CrossView-Warp re-shoot path, accepting a revenue-capped licence; or (2) Wan-core — best for licence cleanliness and the Open Weights Only claim, using Wan-Animate-2 for swap and Fun-Camera/CameraReference3D for camera. The Wan path is the more defensible entry if the goal is a genuinely reusable open asset rather than a prize-maximising one.

The differentiation cannot be "we rebuilt Genjutsu" — Freefield and comfy-openjutsu already did. It has to be one of: a better interface (the reference apps' orbit/keyframe UX is the hardest part and the most visible), a missing mode (Comfy's Openjutsu does person-swap only; Higgsfield's Genjutsu also does Object Swap), a novel node (free-orbit camera beyond nine presets), or a category the crowd ignored (Effects/Transitions, Relight, Outfit Swap, Virality Predictor).

Time is the binding constraint. ~16 hours remain. A clonable MIT reference app plus a working deployment is the only realistic path to a complete, judged entry. Anything built from scratch will not have a demo video, a repo, and a live link by 09:00 PT.


Sources

Competition — primary

URL What it established
https://comfy.org/open-source-higgsfield/Event page: prizes, categories, timeline, deadline (Oct 30, 9am PT), Build Nights, the three inspiration app cards, the four FAQ answers. The "How to enter" step bodies are empty in the static HTML — they load from Comfy's i18n bundle.
https://comfy.org/_website/translations.BotHOeuL.jsThe full ruleset. eventChallenge.* keys: the 6 requirements, the 4 deliverables, submit body, all prize copy, all FAQ copy, and the hub-app UI strings (cinematic.*, reshoot.*, openjutsu.*). This is where the real rules live.
https://comfy.org/_website/HowToEnterSection.XwyUXnTT.jsConfirmed the how-to-enter component reads its content from the translation keys above.
https://form.typeform.com/to/Ayn9CwfjSignup form: name, Comfy account email ("where the credits land"), ComfyUI depth, Build Night attendance, optional build idea. Thank-you: "Credits are on the way if you made the first 200."
https://form.typeform.com/to/V1dSQrkSSubmission form: all required fields, the "Is your stack fully open?" definition, the four mandatory agreements including "This is my only submission", the category list, the 5–10-runs live-link note, and the broken "Creator Feature Terms" reference.
https://blog.comfy.org/p/higgsfield-promised-to-open-sourceLaunch post (Allyson Toy, 2026-10-15). "Higgsfield promised to open source their entire platform. They didn't, so let's help them." Names Genjutsu and Cinema Studio. Prize list. "Backed by Runpod, LTX, Black Forest Labs, and MiniMax." Headline says "SF, NYC & LA" but body says 2 Build Nights.
https://comfy.org/hubHub: 148 models, 688 workflows, 3 apps. Confirms the three apps are "Comfy app" branded.
https://comfy.org/hub/apps/cinematic-studio/Cinematic Studio app. Metadata: Image · 5 models. Beta.
https://comfy.org/hub/apps/reshoot/Re-shoot a video. Metadata: Video · MiniMax H3. Prototype.
https://comfy.org/hub/apps/openjutsu/Openjutsu. Metadata: Video · MiniMax H3.
https://comfy.org/pricing/Comfy Cloud plans and credit volumes; GPU hourly rates; free tier (5 runs); "All available models can be used for commercial purposes."
https://comfy.org/platform/Developer Platform: Comfy API, Comfy Router, Builds.
https://comfy.org/minimax-h3/"Yes. H3 is available as Open Weights… and through Partner Nodes on Comfy Cloud." Commercial licence via Comfy.
https://comfy.org/flux-3/"Run it on Comfy Cloud today. Open weights coming soon." Badge: "Open weights coming soon".
https://comfy.org/flux-3-image-klein/FLUX 3 Image Klein is the open-weight variant.
https://comfy.org/ltx-2.5/LTX 2.5: open-source AI video model.
https://comfy.org/wan-animate-2/Wan Animate 2: open source, reference image + driving video.
https://comfy.org/wan-3.0/Wan 3.0: "Run Wan 3.0 on Comfy Cloud" (Cloud/API).
https://luma.com/5mydmvu6SF Build Night. "pick an app you love (Genjutsu, Cinema Studio or something else)". "$10,000 Grand Prize + 3 GeForce RTX 5090s + bonus prizes from OSS ecosystem partners LTX, BFL, and MiniMax." "special in-person awards". Rescheduled from 10/13.
https://luma.com/73q6c0lnLA Build Night. "The Open Source Higgsfield Competition is organized and administered solely by ComfyUI. This event is not affiliated with or endorsed by Higgsfield." Omits MiniMax from the partner list. "special in-person awards". Agenda.

Competition — secondary

URL What it established
https://comfyui-wiki.com/en/news/2026-10-15-open-source-higgsfieldCommunity wiki (non-official). Corroborates the rules; adds "working creative app with a usable interface and example outputs, rather than a workflow export"; "Every entry must be built on the Comfy Developer Platform, which Comfy defines as the Comfy API, Comfy Router and/or the Comfy SDK"; and that the earlier Open Call page (window closed Oct 19) no longer resolves — confirmed: comfy.org/open-call/ → 404.
https://www.ainvfx.com/blog/open-source-higgsfield-comfyui-contest-and-san-francisco-build-night/Third-party entrant's write-up. Corroborates all rules, the SF agenda, and confirms a serious VFX studio is entering on open weights only, no partner nodes, no closed APIs.
https://www.reddit.com/r/comfyui/comments/1xixx2p/higgsfield_is_threatening_to_sue_comfyui_over/Reported Higgsfield cease-and-desist disclosure (2026-10-29). Could not be read — JS-blocked. Treated as UNVERIFIED.
Web search syntheses on the C&DTwo independent search syntheses report: C&D delivered evening 2026-10-28; trademark + CEO-likeness claims; 48-hour takedown demand; Comfy publicly refused 2026-10-29 citing disclaimers and legal counsel. Secondary only — not independently verified.
Web search synthesis on the open-source premiseHiggsfield did not open-source its platform. The viral September 2026 claim conflated higgsfield-ai/higgsfield (Apache-2.0 MLOps/GPU-orchestration framework) with the commercial studio. Mashrabov has said Higgsfield uses open-weight models alongside closed ones while keeping the product stack proprietary.

Higgsfield

URL What it established
https://higgsfield.ai/Full nav/app list, homepage hero features, footer studios list (fetched 2026-10-29).
https://higgsfield.ai/appsThe 48-app list and their titles (Angles 2.0, Character Swap 2.0, Recast, Camera Motion, Shots, Relight, Outfit Swap, Style Snap, ClipCut, Urban Cuts, Virality Predictor, etc.).
https://higgsfield.ai/creator-hub/help-center/tools/how-do-i-use-cinema-studioCinema Studio versions 2.0–4.0; 4.0 = Director's Panel, up to 50 references, 30 s clips; and the explicit statement that Cinema Studio 4.0 runs on Seedance 2.5.
https://higgsfield.ai/creator-hub/help-center/tools/how-do-i-use-genjutsuGenjutsu modes (Motion Transfer, Object Swap), 4–30 s, 30 refs, Genjutsu Lite, Motion Library.
https://higgsfield.ai/creator-hub/help-center/ai-models/how-do-i-use-soul-to-generate-imagesSoul family: Soul, Soul 2.0, Soul Cinema, Soul HEX, Soul ID, Moodboards, settings, aspect ratios.
https://higgsfield.ai/creator-hub/help-center/ai-models/how-do-i-use-popcornPopcorn modes (Manual/Auto/Instadump), up to 8 frames, 4 image references, aspect ratios.
https://higgsfield.ai/creator-hub/help-center/ai-models/how-do-i-use-lipsync-voiceover-and-aspect-ratiosLipsync Studio model list, Audio tools, native audio co-generation, Speak 2.0.
https://higgsfield.ai/creator-hub/changelogLatest entry 2026-10-27: GPT-6.1 Terra added to Supercomputer.
https://higgsfield.ai/blog/higgsfield-apiAPI launch (2026-09-16), 50+ models, published per-second/per-image rates, billing principles.
https://higgsfield.ai/blog/higgsfield-pricing-explainedPlan table, per-model credit costs, concurrency, credit-expiry rules.
https://higgsfield.ai/blog/5-Best-AI-Video-Models-2026-Tested-ComparedCinema Studio 4.0 = Seedance 2.5; per-model credit costs.
https://higgsfield.ai/blog/higgsfield-genjutsuGenjutsu launch guide (2026-08-31): Motion Transfer + Object Swap; 4–30 s video; up to 30 reference photos; prompt optional; 30+ presets; up to 1080p; pricing (15 s → 40/104/144 credits at 480/720/1080p). Genjutsu Lite (2026-10-20): 4–30 s, ≤10 references, 720p/1080p, ~⅓ cost, available via API/MCP/CLI/plugins.
https://higgsfield.ai/blog/Change-the-Angle-of-Any-ImageHiggsfield Angles / Angles V2: full 360°, 12 auto-views, 3D rotation disc, manual sliders.
https://higgsfield.ai/blog/edit-photos-with-ai-higgsfieldEdit Image's 9 tools, Angles, per-tool credit prices.
https://higgsfield.ai/blog/a-simple-guide-to-face-swapFace Swap workflow (image + video modes).
https://higgsfield.ai/blog/AI-Face-Character-Swap-in-Video-Photo-PRO-GuideCharacter Swap, Instadump, Recast, voice cloning, background replacement.
https://higgsfield.ai/blog/how-to-make-viral-videos-viral-presets60+ Viral Presets, 3-step workflow.
https://higgsfield.ai/blog/higgsfield-katanaKatana, MCP URL, 5 photos, reference-edit rebuild.
https://higgsfield.ai/blog/higgsfield-playable-ads-and-gamesPlayable Ads/Games, upload limits, 9 export networks, 8 genres.
https://higgsfield.ai/blog/new-marketing-studio-higgsfieldMarketing Studio: 1,500+ templates, 6 categories, Recreate, URL import.
https://higgsfield.ai/blog/how-to-make-ai-product-photos-without-a-studioProduct-photoshoot workflow, avatars, formats.
https://higgsfield.ai/blog/higgsfield-all-unlimited-explained"Unlimited" is a 7-day, web-only window over 23 models.
https://higgsfield.ai/effectsThe full named preset list (60+).
https://higgsfield.ai/camera-controlsThe full named camera-move list (50+) — the most useful enumeration for a camera-move rebuild.
https://higgsfield.ai/sketch-to-video-ai, /apps/sketch-to-realDraw-to-Video's current branding (Sketch to Video AI / Sketch to Real) — the product exists, renamed; plus the app rail (Shots, Zooms, Transitions, Angles 2.0, Virality Predictor).
https://higgsfield.ai/marketing-studio-introMarketing Studio modes, avatars, product import.
https://higgsfield.ai/cinema-studioCinema Studio 4.0: "30+ camera movement presets and 50+ color palettes".
https://higgsfield.ai/apps/angles"AI Camera Angles — Change Image Perspective" (image, not video).
https://higgsfield.ai/apps/shots"Turn a single reference photo into a sequence of storyboard shots" — 9 shots from one image.
https://higgsfield.ai/apps/camera-motion"Generate shots, angles, and seamless transitions."
https://higgsfield.ai/apps/recast"Character Swap — Transform Characters in Videos."
https://higgsfield.ai/apps/character-swap"Instantly swap or replace characters in any photo."
https://higgsfield.ai/soul"Higgsfield Soul – Hyper-Realistic, Fashion-Grade AI Photo Model… 50+ aesthetic presets."
https://higgsfield.ai/effects"Explore cinematic AI visual effects… Choose an effect, add your media."
https://higgsfield.ai/speak, /popcornPages exist (HTTP 200) but return only generic site metadata — the product descriptions come from the Creator Hub help centre instead.
https://higgsfield.ai/draw-to-video, /product-photoshoot404 — but the products exist under other names (Sketch to Video AI; Marketing Studio). The slugs are dead, not the products.
https://docs.higgsfield.ai/docs/llms.txtFull docs index: auth, async lifecycle, SDKs, enterprise features, OpenAPI.
https://docs.higgsfield.ai/docs/api-reference/overviewBase URL https://api.higgsfield.ai, Authorization header, optional Idempotency-Key.
https://docs.higgsfield.ai/docs/how-to/introductionThe async submit → request_id → poll/webhook → download lifecycle.
https://github.com/orgs/higgsfield-ai/repositoriesThe 11 public repos with licences, stars, forks and last-push dates.
https://github.com/higgsfield-ai/higgsfieldThe Apache-2.0 GPU-orchestration / LLM-training framework — now marked "Public archive" — and the actual subject of the September 2026 "open sourced his startup" claim.
https://github.com/higgsfield-ai/higgsfield-client, /higgsfield-jsPython SDK (Apache-2.0) and TS SDK (MIT).
https://github.com/thehiggsfieldai/OpenHiggsfieldIndependent BYOK studio, MIT, explicitly "Not affiliated with, operated by, sponsored by, or endorsed by Higgsfield.ai".
https://higgsfield.ai/pricing, https://open.higgsfield.ai/pricingJS-only — could not be read. All plan/credit figures come from Higgsfield's blog or third-party teardowns.
https://www.krea.ai/blog/higgsfield-pricing-explained-2026-unlimited-credits-and-real-monthly-costsThird-party pricing teardown; per-model credit table.
https://soku.ai/alternatives/higgsfield/reviewThird-party teardown: Soul 0.25 / Soul 2.0 0.12 credits, Starter economics, Unlimited restrictions.
https://www.glbgpt.com/hub/higgsfield-popcorn-review/Popcorn 1.5 credits/image.
https://pasqualepillitteri.it/en/news/18087/higgsfield-ai-free-open-source-pay-per-use-modelsOpen-source repo survey with star/fork counts (2026-10-24).
https://www.unite.ai/higgsfield-ai-review/Third-party review: founders, 20M users / 50M videos / $1.3B valuation (press claims), feature list.
https://www.tryclout.ai/blog/higgsfield-lip-sync-guideIndependent Lipsync Studio / Speak 2.0 UI inspection.
https://www.kavel.ai/blog/higgsfield-genjutsu-price-guideGenjutsu pricing, underlying-model uncertainty, queue complaints.
https://curiousrefuge.com/blog/how-to-use-higgsfield-draw-to-animationDraw-to-Video workflow and the first-frame annotation defect.
https://kolbo.ai/blog/higgsfield-soul-2-cinema-launchSoul 2.0's 33 presets, Soul Cinema, Soul Cast/Location (third-party).
https://www.the-ai-corner.com/p/higgsfield-1b-arr-alex-mashrabovMashrabov interview (2026-10-16): $1B ARR, ~400 staff, >$4M/month on models; open-weight models used alongside closed.
https://apps.apple.com/us/app/reshoot-ai-face-photo-editor/id6751296351The unrelated third-party "ReShoot" iOS app — evidence that "Re-shoot" is not a Higgsfield product name.

ComfyUI technical

URL What it established
https://docs.comfy.org/development/api-development/workflow-api-formatSave format vs API format; the API-format JSON shape; how to export.
https://docs.comfy.org/development/api-development/quickstartCloud/Router/SDK quickstart; export in API format; node-ID targeting.
https://docs.comfy.org/development/api-development/sdksComfy SDK v0.5.0; the two surfaces (Router vs Cloud/API v2); base URLs; COMFY_API_KEY; idempotency semantics (reject-on-duplicate, 24 h expiry, double-bill risk); comfy-api-proxy for self-hosted.
https://docs.comfy.org/development/deploy/overviewCloud vs Comfy API vs self-host; "Deploy to Comfy API" from the Workflow actions menu; Build Wizard; "Build with your agent".
https://docs.comfy.org/development/deploy/cloudComfy Cloud: run workflows without a Build or deployment.
https://docs.comfy.org/development/deploy/cloud-usageAPI jobs draw from the same monthly credit pool as the Cloud UI. Concurrency: Standard 1 / Creator 3 / Pro 5. Max runtime 30 min (Pro 1 h). 100 queued.
https://docs.comfy.org/development/run-workflows/overviewRunning workflows against a deployment.
https://docs.comfy.org/development/comfyui-server/comms_overviewServer on 127.0.0.1:8188; --disable-auto-launch, --port, --listen; aiohttp/PromptServer; partner-node API key in the payload.
https://docs.comfy.org/development/comfyui-server/comms_routesThe full route table: /prompt, /history, /view, /queue, /interrupt, /free, /upload/image, /object_info, /models, /system_stats, /ws, /userdata, /users.
https://docs.comfy.org/development/comfyui-server/comms_messagesWebSocket message types and payloads; executed fires only on a ui return; custom message types.
https://docs.comfy.org/development/comfyui-server/api-examplesThree calling patterns: submit-and-forget, WebSocket + /history, SaveImageWebsocket.
https://docs.comfy.org/development/comfyui-server/api-key-integrationextra_data.api_key_comfy_org for partner nodes.
https://docs.comfy.org/tutorials/partner-nodes/pricingThe partner-node price list (Anthropic, Beeble, BFL incl. FLUX 3 Image/Video/Max, Bria, …). Establishes which models are metered partner APIs.
https://docs.comfy.org/agent-tools/indexMCP vs Agent vs CLI comparison.
https://docs.comfy.org/agent-tools/clicomfy-cli: comfy setup, comfy cloud login, comfy generate (beta), comfy run; `--where localcloud`.
https://docs.comfy.org/agent-tools/mcpComfy MCP cloud and local connections.
https://docs.comfy.org/custom-nodes/overviewCustom node development (backend + frontend extension) — the in-canvas path.
https://docs.comfy.org/_llms/en/built-in-nodes/nodes/partner.txtThe 322 partner nodes, including MiniMax H3, LTX 2.5 API, FLUX 3 API, Wan 2.7/3.0 API.
https://docs.comfy.org/_llms/en/built-in-nodes/nodes/model.txtThe model nodes, including WanCameraEmbedding, WanCameraImageToVideo, WanVaceToVideo, Wan22FunControlToVideo, WanAnimateToVideo, WanAnimate2ToVideo, the LTXV* family, GetICLoRAParameters.
https://docs.comfy.org/built-in-nodes/WanCameraEmbeddingPlücker-embedding camera trajectories; nine presets only; fx/fy/cx/cy; speed.
https://docs.comfy.org/built-in-nodes/WanCameraImageToVideoCamera-controlled image-to-video conditioning; 48-channel latent = Wan 2.2 format.
https://docs.comfy.org/built-in-nodes/WanAnimate2ToVideoReference image + motion transfer.
https://docs.comfy.org/built-in-nodes/WanVaceToVideoVACE-controlled video conditioning.

Reference apps and open engines

URL What it established
https://github.com/Comfy-Org/comfy-cinematic-studio"A clonable Comfy Router app and development guide." MIT. Next.js; calls bfl/flux-2-pro; no workflow; cinematicPrompt() composes the prompt.
https://github.com/Comfy-Org/comfy-reshoot"A clonable Comfy workflow deployment app and development guide." MIT. analyze.api.json (depth → .cvgeo) + generate.api.json (MoGe + CrossView Warp + MiniMax H3 → 3 videos). Node map 1/2/5/20. 96 GB GPU. comfy build/comfy deploy sequence.
https://github.com/Comfy-Org/comfy-openjutsu"A clonable Comfy character-swap app and development guide." MIT, ~53 stars. Fork of Akatz's H3 Character Swap at 0670e4f; patched h3_character_swap node pack + MiniMax H3 + SAM 3.1 + 2 LoRAs; GPT Image 2.5 anchor via Router; node map 30/9/trim/31/801/809.
https://github.com/akatz-labs/h3-character-swap-toolThe upstream H3 character-swap workflow.
https://github.com/cseti007/ComfyUI-CrossViewWarpThe CrossView-Warp ComfyUI node pack.
Cseti/LTX2.3-22B_IC-LoRA-CrossView-Warp_v2 (Hugging Face)The CrossView-Warp IC-LoRA for LTX-Video 2.3 22B (v2 2026-08-15).
https://github.com/zai-org/SCAIL-2SCAIL-2: open character animation/replacement on Wan 2.1 14B; In-Context Mask Conditioning; Mode-Specific RoPE; Bias-Aware DPO; MotionPair-60K; ComfyUI integration since 2026-06-09.
https://teal024.github.io/SCAIL-2/SCAIL-2 project page (Tsinghua + Z.ai); replacement mode preserves environment without background inpainting.
https://github.com/D3voz/openjutsuCommunity Genjutsu alternative: "built on ComfyUI and MiniMax H3, with FLUX.3 Klein relighting"; open weights on your own GPU (MiniMax H3, SAM 3.1, Qwen3-VL 8B); "following Comfy's comfy-reshoot reference app".
https://github.com/Comfy-Org/comfy-clicomfy-cli.
https://github.com/Comfy-Org/comfy-api-proxyComfy API v2 in front of self-hosted ComfyUI.
https://github.com/Comfy-Org/ComfyUI_frontendOfficial front-end implementation.
https://github.com/Comfy-Org/ComfyUI-React-Extension-TemplateReact/TS frontend extension template.
https://api.github.com/orgs/Comfy-Org/reposThe Comfy-Org repo inventory (used to find the three reference apps and the SDK repos).

Unknowns and risks

Unknowns (state these as unknown, do not guess)

  1. How many free credits the first 200 signups receive. Not published anywhere I could reach. The only credit figures Comfy states are the $250 runner-up prize and the partner bonuses.
  2. Whether the signup credits are restricted to Comfy Cloud GPU time, partner nodes, or both. The signup form says only "where the credits land" (the Comfy account email).
  3. Whether the submission form will still accept a response at 08:59 PT on 2026-10-30. It is live now; Typeform can be closed server-side at any moment.
  4. Who the judges are, and whether there is a rubric. Only "the Comfy team" is inferable; no names, no weights, no tie-break rule.
  5. Whether one entry can win multiple main categories (e.g. Most Innovative and Open Weights Only). Only main+bonus stacking is stated.
  6. Team entries. Not addressed. "One submission per person" implies a team could file several, but this is an inference.
  7. Eligibility restrictions (age, residency, sanctions, employment). None stated.
  8. The "special in-person awards" mentioned on both Luma pages. Undefined, unlisted, and absent from the official rules.
  9. The "Creator Feature Terms" referenced by a mandatory agreement checkbox. The link is not a link and comfy.org/creator-feature-terms/ is 404. You are being asked to agree to terms you cannot read.
  10. Which model actually renders the final pixels in comfy-reshoot — the app is tagged MiniMax H3 but credits CrossView-Warp (an LTX 2.3 LoRA). Most likely H3 generates and CrossView provides the guide; unconfirmed.
  11. Whether FLUX 3 Image Klein satisfies "FLUX 3 must be the core model" for the FLUX bonus. It is a FLUX 3 variant and open weights; the full FLUX 3 video model is not. Judgement call.
  12. Higgsfield's underlying models for Genjutsu, Soul, Angles, Recast, Effects, Popcorn, Speak 2.0 and Draw-to-Video. All undisclosed by Higgsfield. The one exception, now confirmed: Cinema Studio 4.0 runs on Seedance 2.5 (ByteDance), per Higgsfield's own help centre.
  13. What Higgsfield Speak and Popcorn actually do. RESOLVED. Speak = the lip-sync engine inside Lipsync Studio (Higgsfield Speak 2.0, ≈14 credits/5 s @720p, Plus tier required). Popcorn = a storyboard generator producing up to 8 coherent frames from up to 4 references at 1.5 credits/image. Sourced from Higgsfield's Creator Hub help centre.
  14. Whether Higgsfield has a public developer API and docs. RESOLVED. Yes — https://api.higgsfield.ai, docs at docs.higgsfield.ai (with an llms.txt index), console at console.higgsfield.ai, launched 2026-09-16, 50+ models, published per-second/per-image rates, Python and TS SDKs. Still unknown: the live higgsfield.ai/pricing and open.higgsfield.ai/pricing pages are JS-only and unreadable, so all plan/credit figures come from Higgsfield's blog or third-party teardowns.
  15. The exact status and authenticity of the cease-and-desist. Reported by multiple secondary sources; the primary Reddit disclosure is JS-blocked to this tooling.
  16. Whether the competition will proceed as advertised given (15).
  17. Whether Higgsfield ever actually promised to open source its platform. No source located supports the claim. The competition's premise appears to be a misreading of an archived Apache-2.0 LLM-training framework.

Risks, ranked

  1. Legal / event-cancellation risk (highest). If the reported C&D is real and escalates, the event could be modified, paused, or the prize terms changed after submission. Comfy has reportedly refused to comply, and the LA Luma page carries the "not affiliated with or endorsed by Higgsfield" disclaimer Comfy cites. Mitigation: submit early, keep the repo and demo video self-contained and independently valuable, and avoid using Higgsfield trademarks or the CEO's likeness in Magieva's own entry or marketing. Note that the event's own premise ("Higgsfield promised to open source") is factually wrong, which weakens the framing but not the build.
  2. Time risk (binding). ~16 hours remain. A from-scratch app cannot ship a repo, a ≤2-minute demo, and a live link in time. Mitigation: clone a Comfy-Org reference app and adapt it.
  3. Compute risk. Both video reference apps were demonstrated on 96 GB GPUs; comfy-openjutsu explicitly says smaller configurations are untested. SCAIL-2 fp16 is ~32.8 GB and runs on a 24 GB 4090 only with offloading (slow). Mitigation: use fp8/mxfp8/GGUF quantisations, or rent a 96 GB GPU (Comfy API RTX PRO 6000 at $3.49/hr), or choose the LTX/CrossView path which is lighter than H3.
  4. Open-Weights-Only disqualification risk. The easiest reference apps contain closed API calls (comfy-openjutsu → GPT Image 2.5 via Router). Declaring "fully open" while shipping a closed call is a stated eligibility failure. Mitigation: audit every node and dependency; remove the anchor step; prefer local Wan 2.2 / LTX 2.5 / SCAIL-2 / Wan-Animate-2; verify with --disable-partner-nodes.
  5. Licence risk — the invisible one. "Open weights" is not "open licence". MiniMax H3's community licence excludes the United States as a territory and requires a paid licence (resold only by Comfy, from $5,000/month) for local commercial use; LTX is revenue-capped at $10M; FLUX 3 Image Klein is revenue-capped and image-only; InfiniteYou's weights are CC-BY-NC (non-commercial) despite Apache-2.0 code. None of this is mentioned on the event page, and none of it affects eligibility — but it determines whether the deliverable is actually usable. Mitigation: default to Wan 2.1/2.2 (Apache-2.0) for anything intended to be commercially reusable; read the LICENSE file for SCAIL-2 (MIT vs Apache-2.0 conflict), ReCamMaster and ReActor (both unverified).
  6. Bonus incompatibility. FLUX 3 video is Cloud/API-only, so a FLUX bonus entry forfeits Open Weights Only. The H3 bonus pays API credits and local H3 commercial use is unlicensed in the US, so it points at the hosted path too. Only the LTX bonus stacks cleanly with Open Weights Only. Mitigation: decide the category first, then pick the model — not the reverse.
  7. Crowded field. Freefield (~95 tools, ~117–120 workflows, MIT, published 10/27) and comfy-openjutsu (53 stars) already occupy the obvious ground. Mitigation: differentiate on interface, a missing mode (Object Swap), a novel node pack, or an ignored category.
  8. Live-link risk. Judges will run it 5–10 times. A metered deployment that runs out of credits, or a cold-start that takes minutes, reads as broken. Mitigation: cap spend, keep a warm worker if affordable, or omit the link and rely on the video.
  9. Unreadable terms. The mandatory "Creator Feature Terms" agreement is a dead link. Mitigation: assume the broadest reading of the feature-rights grant (Comfy, Runpod, LTX, BFL, MiniMax may feature the work with credit) and decide whether that is acceptable before submitting.
  10. Form-friction risk. The submission form requires a social post URL and a demo video URL and a repo URL, all as separate required fields, plus a required "List all generative models used". A missing social post is a hard eligibility failure. Mitigation: post the demo and capture the URL before starting the form.
  11. Documentation drift. Several Comfy docs pages are AI-generated (the built-in node pages say so explicitly), and the event page's static HTML omits the entire ruleset. Mitigation: treat the i18n bundle and the Typeform field definitions as the authoritative rules; re-verify the deadline and form status immediately before submitting.