The OpenAI DevDay 2026 recap highlights over 20 new announcements, featuring the GPT‑6 Astra model, updates to ChatGPT and Codex, expanded APIs, enhanced security measures, and fresh tools designed for developers.
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We’re hosting our third annual OpenAI DevDay on October 6, 2025 at Fort Mason in San Francisco.
OpenAI previews GPT-5. 6 Sol, a next-generation model with stronger capabilities in coding, science, and cybersecurity, paired with its most advanced safety stack.
We’re releasing a research preview of OpenAI GPT‑4. 5, our largest and most knowledgeable model yet.
OpenAI introduces GPT‑6 Astra, its most capable model for business. The new model boasts advanced reasoning, computer use, and improved writing and design judgment. It is positioned as the next generation of intelligence for work.
We’re releasing an API for accessing new AI models developed by OpenAI.
OpenAI has been named an Emerging Leader in Gartner’s 2025 Innovation Guide for Generative AI Model Providers. The recognition reflects our enterprise momentum, with over 1 million companies building with ChatGPT.