OpenAI DevDay 2026: What actually changes for normal ChatGPT users

At DevDay 2026 held recently, OpenAI rolled out over 20 major updates across ChatGPT, Codex and its model lineup. The annual event highlighted a shift toward an open ecosystem, turning ChatGPT into a shared environment where developers can release native tools to 1.2 billion weekly active users. If you use ChatGPT in your day-to-day workflow, here is an easy-to-understand breakdown of what these updates mean for daily users, what features are arriving and who gets access.

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