OpenAI Blog · Nov 13, 2025
Introducing GPT-5.1 for developers
Reviewed by Errol Vogt, Site support technician & online learning analyst · original summary · editorial policy
Introducing GPT-5.1 for developers. GPT-5.1 is now available in the API, bringing faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch and shell tools. This update is relevant for small-office operators tracking changes in their tools.
Operator takeaway: For operators: review whether 'Introducing GPT-5.1 for developers' affects your current setup before relying on it in production.
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