OpenAI GPT-5 Startup Hackathon

The official GPT-5 Startup Hackathon is here.

We’re looking for the best startups and founding teams to be the first to build with GPT-5. Compete for a chance to win DevDay tickets and $50,000 in OpenAI credits.

This hackathon is for startups (pre-seed, seed, series A) to build on GPT-5, with GPT-5. Gain insights from the OpenAI team, meet fellow founders, and get an edge on using our frontier model.

Demo for judges including Sarah Guo, Alfred Lin, Kanu Gulati, Leigh Marie Braswell, & more…

Applications reviewed on a rolling basis & space is limited. Maximum teams of four. All attendees must submit an application to be approved.

Please note: this event is fully in person in San Francisco.