OpenAI updates chat-latest to the latest ChatGPT Instant model

UpdateJun 24, 2026VerifiedAdded Sep 22, 2026

The chat-latest snapshot now points to the latest Instant model used in ChatGPT and will be updated regularly. OpenAI recommends GPT-5.5 for production API usage.

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Read OpenAI's release notes

https://developers.openai.com/api/docs/changelog#jun-24

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