Hackathon participants are reporting technical difficulties regarding the redemption of OpenAI Codex vouchers for the build-small-hackathon event, as of June 7, 2026. Users have stated that there is no clear field or interface to input their provided Codex keys, hindering access to the allocated credits. While Modal voucher issues appear to be resolved following subsequent confirmation attempts, the OpenAI Codex redemption process remains a challenge.

The hackathon includes a dedicated OpenAI Codex Track offering $10,000 in cash and ChatGPT Pro subscriptions to the top 3 builds. The competition requires developers to build spaces using Codex as a coding agent and push the source code to a public GitHub repository with Codex-attributed commits. The competition utilizes Codex itself as the primary judge to evaluate code quality and model integration for every entry.

Hackathon participants are reporting technical difficulties regarding the redemption of OpenAI Codex vouchers for the build-small-hackathon event, as of June 7, 2026. Users have stated that there is no clear field or interface to input their provided Codex keys, hindering access to the allocated credits. While Modal voucher issues appear to be resolved following subsequent confirmation attempts, the OpenAI Codex redemption process remains a challenge.

The hackathon includes a dedicated OpenAI Codex Track offering $10,000 in cash and ChatGPT Pro subscriptions to the top 3 builds. The competition requires developers to build spaces using Codex as a coding agent and push the source code to a public GitHub repository with Codex-attributed commits. The competition utilizes Codex itself as the primary judge to evaluate code quality and model integration for every entry.