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gpt-5-codex

2 entries · September 2025 – October 2025

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  • Models & capabilities 2

  1. OpenAI's third DevDay: AgentKit, Apps SDK and Codex general availability

    OpenAI opened ChatGPT to third-party apps built on the Model Context Protocol and shipped a visual agent-building toolkit, while Altman disclosed 800 million weekly ChatGPT users.

    OpenAIModels & capabilities

  2. OpenAI ships GPT-5-Codex

    The model became the default engine for Codex's cloud tasks and code review, and OpenAI said it could work independently on a task for hours at a time.

    OpenAIModels & capabilities

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