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June 24, 2026 · OpenAIUpdate

chat-latest snapshot updated to the latest Instant model used in ChatGPT

Updated the chat-latest snapshot, which points to the latest Instant model currently used in ChatGPT. We recommend leveraging GPT-5.5 for production API usage, but feel free to use this model to test the latest improvements for chat use cases. The underlying model snapshot will be regularly updated. Read more here.

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Announcements from AWS, Google Cloud, Azure, Cloudflare and the main AI providers in one searchable changelog, with daily, weekly and monthly digests.

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