OpenAI DevDay 2026 unveils GPT-6 Astra, ChatGPT updates, Codex improvements, APIs, security features, and builder tools
Read the original at openai.com→Explore more than 20 announcements from OpenAI DevDay 2026, including GPT-6 Astra, ChatGPT, Codex, APIs, security, and new tools for builders.
Original headline: "DevDay 2026 Recap"
Coverage timeline
- Sep 29, 10:00 UTC OpenAI lead source DevDay 2026 Recap
- Sep 29, 15:55 UTC Simon Willison OpenAI DevDay 2026 live blog
- Sep 29, 16:00 UTC The Verge AI OpenAI DevDay 2026: The biggest news and announcements