Codex x TwitchCon Hackathon

Overview

The Codex x TwitchCon Hackathon invites developers to create innovative experiences for Twitch streamers and their communities using OpenAI Codex. This hackathon is a collaboration between OpenAI and Twitch, aiming to explore the potential of AI in live streaming environments. Participants are encouraged to develop applications that enhance streamer-audience interaction, facilitate streamer collaboration, or add new features to live content. Participants will gain hands-on experience building with OpenAI Codex and the Twitch API, EventSub, and chat functionalities. The hackathon offers a platform for developers to showcase their creativity and technical skills in a competitive setting. The goal is to produce working projects that are both useful and engaging for the Twitch ecosystem. A total of $25,000 in prizes will be awarded across various categories. A significant highlight for the top 5 projects is the opportunity to be showcased on the Codex Booth stage at TwitchCon San Diego. Winners will also be announced live at this event. The hackathon encourages original ideas, allowing participants to build anything from elaborate applications to smaller, scrappy projects. The primary requirements are that the project connects to Twitch services and demonstrates the use of OpenAI Codex in its development.

What to build

Projects should be built for streamers and their community on Twitch using OpenAI Codex. Ideas can include streamer collaboration tools (e.g., helping streamers talk, play, or create together), audience participation features (e.g., Twitch Plays games, live polls, streamer distractions), or content enhancements (e.g., dice rollers for tabletop streams, live sports overlays, tools for IRL and science streams). The project must connect to Twitch (e.g., Twitch API, EventSub, chat, Extensions, overlays) and demonstrate the use of OpenAI Codex. Original ideas are encouraged over simply rebuilding examples.

Prizes

Key dates

• Submission DeadlineNov 2, 2026 @ 2:00pm PST
• Winners Announcement at TwitchCon San DiegoNov 15, 2026

Eligibility

Participants must be above the legal age of majority in their country of residence. Companies and professional organizations are excluded from participation. All countries/territories are eligible, excluding standard exceptions.

How to enter

1. Sign in to Codex and start a new thread for your project. You will need its session ID when you submit.
2. Utilize resources from dev.twitch.tv to build your project.
3. Consider joining the TwitchDev Discord and asking questions in the appropriate channels, or saying hi in #codex-twitchcon-hackathon for general questions and updates.
4. Submit your project by the deadline.

Submission requirements

• Provide a URL to your code repository (GitHub, GitLab, or Bitbucket). It must contain all source code, assets, and instructions needed for the project to run. If private, it must be on GitHub or GitLab and shared with twitchcon-codex@devpost.com.
• Submit a demo video (max 3 minutes) uploaded to YouTube and made publicly visible, showing your project working on Twitch and how you used Codex.
• Include a text description explaining the project's features, functionality, and how you used Codex.
• Provide the Codex Session ID for the thread where most of your project was built. (Type /status in Codex to see it.)

Judging criteria

• Innovation/Idea: How creative and novel is the concept and does the project differ from existing concepts?
• Potential Impact: How useful or entertaining is it for streamers and their communities?
• Technological implementation: How well is it built, and how well does it use Codex?
• Design: Is it easy to use and fun to watch?

Resources

• Twitch Developer Documentation
• Example Chatbot guide
• TwitchDev Discord
• Hackathon Manager Email