OpenAI summarises DevDay 2026: More than 20 updates for developers
OpenAI has summarised DevDay 2026 with over 20 updates for developers, including enhancements for ChatGPT, Codex, and safety frameworks for future models.

What happened?
OpenAI has released its official summary of DevDay 2026, covering over 20 updates for developers and builders. The presentation focuses on improvements to ChatGPT and Codex, new API tools, and strengthened security features. Additionally, the company confirmed details regarding the development of advanced models, including GPT-6 Astra and their associated frameworks.
Key facts
| Antal nyheter | Över 20 tillkännagivanden |
|---|---|
| Huvudområden | ChatGPT, Codex, API:er, säkerhet, GPT-6 Astra |
Why it matters
The presentation establishes the parameters for OpenAI's platform strategy during 2026. By introducing new developer tools, security controls, and performance enhancements to Codex and its APIs, the company aims to maintain its lead in the AI infrastructure market.
Who is affected?
The updates are primarily aimed at software developers, product teams, and companies building applications on top of OpenAI’s platform and APIs. Users of ChatGPT and Codex will also be affected by the new performance improvements and tools.
Impact on the EU
No specific EU restrictions on these developer tools were announced in connection with the summary, but all new API functions are covered by OpenAI's existing data protection terms and the EU AI Act.
What else you should know
The summary shows that OpenAI continues to expand its ecosystem for developers through lower fees and improved control tools, while flagship projects like GPT-6 Astra undergo further safety evaluations prior to a wider release.
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