GPT-6 Astra Hackathon SF

GPT-6 Astra is here. Come build with it. This hackathon is for developers, technical founders, and startup teams to build with GPT-6 Astra – the world’s most intelligent and aligned model. Meet the OpenAI team and compete for a chance to demo onstage for a panel of judges including Urvashi Barooah (Redpoint), Pranav Reddy (Conviction), and more! Prizes include $50,000 credits, DevDay 2026 tickets, and ChatGPT Pro subscriptions for all finalists. Show us what you can ship with GPT-6 Astra's new capabilities. All work must be built during the hackathon and submitted as a public open source repository.