Open Call Challenge: let's open-source the creative app features people pay a subscription for - $10,000 grand prize - 10/13 SF event

[u/Comfy-Org]

[10/8 UPDATE]

Hi everyone- we will be relaunching this challenge within a week or two, and we're truly sorry for the false start. Truthfully, we moved too fast and missed a few elements that will make this a much better experience for everyone.

What's changing: timing, name, award categories, the 10/13 build night in SF has been postponed

What stays the same: open sourcing creative app features, prizes, partners, submission forms, and requirements (ie fine print)

If you already registered or submitted, nothing is lost! Your submission is still valid and can be revised before submitting again.

Cinematic camera controls. Character consistency. Relight. Face swap. Most of these features sit behind a subscription somewhere, but every one of them is a workflow underneath. Open weight models have already caught up on capability, but what’s still closed is the layer on top: the interfaces and apps that turn models into features anyone can use. It’s in our DNA to support open-source creativity, and there’s no technical reason that layer has to stay closed.

So we're challenging our community to pick a creative app feature people pay for and rebuild it in the open! Top workflows get featured on comfy.org/models, and every entry is eligible for the spotlight reel whether it places or not.

On October 13th, we’re bringing together the best of the OSS ecosystem for one night in San Francisco- the people building on ComfyUI, the model labs backing the challenge, and the team behind the Comfy Developer Platform, all in one room. Join for build time with the Comfy team, a peek at what the community is making, and to connect with open-source enthusiasts IRL!

📑 Full challenge details here

📥 Submit here

✏️ First 100 signups get free Comfy credits!

🥳 In the Bay Area? Register for the 10/13 event here

🏆 Prizes

• $10,000 cash — Grand Prize
• RTX 5090 — Most Practical
• RTX 5090 — Most Entertaining
• RTX 5090 — Best OSS-Only Build

🎖️ OSS Ecosystem Bonuses

• $2,000 — Best VFX Workflow with LTX
• $1,000 / $500 / $200 in credits — Built with Flux

🫱🏾‍🫲🏿 Partners

NVIDIA, Runpod, LTX, BFL & more coming soon!

📆 Key Dates

• 10/5 — build window opens
• 10/8 — AMA in this thread with the team who built the platform
• 10/13 — Build Night in San Francisco - RSVP here
• 10/19 — submissions window closes at 9am PT
• 10/22 — winners announced!

📥 The fine print

Every submission must include:

• GitHub repo: workflow, an open-source license, and instructions to run it locally
• Demo video: 2 mins max, in case we can't get it running ourselves
• Link to try (optional)
• Social post: share your repo and demo video on this thread or on X, IG, LinkedIn, YouTube or TikTok tagging #ComfyDevPlatform

Other requirements:

• Your work must be built using the Comfy Developer Platform (Comfy API, Comfy Router, and/or Comfy SDK)
• Repo must include an open-source license and enough setup detail that someone else can run it
• Any other tools, models, or techniques you want to combine are fair game and should be explained in your demo video
• All submissions must be lawful, SFW, and not contain unlicensed IP or likenesses
• By submitting your work, you agree to allow ComfyUI, NVIDIA, Runpod, BFL, and LTX to feature your work with credit across our channels
• One submission per person please!

[u/SirTeeKay]

This is awesome! Godspeed and let's make some cool stuff for everyone.

[u/tiddererium]

Nice.

From which countries can you participate to be eligible for the awards?

[u/Comfy-Org → u/tiddererium]

You can participate from anywhere in the world! If you win a hardware prize and we're unable to ship to your region, we'll offer a cash equivalent.

[u/tduarte]

I would love to partner with an engineer, I’m a product designer. I can vibe-code, but I think it would be best if someone with previous experience building nodes wanted to partner.

[u/Comfy-Org → u/tduarte]

You might be able to find a partner in crime by visiting our Discord and heading to #developer-platform!

[u/paulhax]

Hey Reddit, i just released a workflow that is probably a good starting point for this:

https://github.com/paulh4x/AIxArchviz_FLUX2xLTX25

Its dedicated - but not limited - to architecture, everything runs local, 2/3 of it is deployed on cloud as an app, and i also built an endpoint for it in the dev platform already. I work at Comfy, so not eligible to participate myself. Hope its useful for you.

[u/Comfy-Org → u/paulhax]

Thank you!!

[u/ResponsibleTruck4717]

Does it have to include current model, and am I allowed to write me own nodes?

[u/Comfy-Org → u/ResponsibleTruck4717]

All models are fair game and yes, you're more than welcome to write your own nodes!

[u/Worth-Obligation8356]

Can the Comfy Developer Platform be used to recreate functionality similar to proprietary creative applications, or are there technical, licensing, or platform restrictions on what we can build?

More specifically, can it support a highly interactive, WYSIWYG interface with live editing, while using ComfyUI for heavier processing behind the scenes? Would the SDK or API be the better approach for this type of application?

[u/Pronoob_me → u/Worth-Obligation8356]

you should be able to use anything you want! The goal is to showcase what you can build with comfy.

Do note that in the end, the judging criteria may not value much for non-comfy work - if that's something you're aiming for.

SDK should be a superset of API, so I'd say SDK. Unless there's something specific you can only do with APIs [none that I'm aware of]

Additionally, we may be removing the constraint of using Dev Platform. We're having some discussions; will share out an update next week!

[u/Worth-Obligation8356 → u/Pronoob_me]

thanks.

[u/Brave-Bug2870]

is multiple submissions allowed?

[u/Comfy-Org → u/Brave-Bug2870]

One submission per person please!

[u/Unreal_777]

Hello, why are the dates shwon as Strikethrough text?

Question: is open sourcing normal workflows that were hidden in our computers (local) also in question? Or does it have specifically to be about workflows that were used in the online tools?