OpenAI Releases GPT-5.1 On Its API Platform
November 17, 2025
IBL News | New York
OpenAI released GPT-5.1 on its API platform last week.
This model adapts the time spent thinking to the complexity of the task. It also features a âno reasoningâ mode to respond faster to tasks that donât require deep thinking.
GPT-5.1 features extended prompt caching for up to 24 hours of cache retention, enabling faster follow-up questions at a lower cost.
On coding, OpenAI said it has worked closely with Cursor, Cognition, Augment Code, Factory, and Warp to make GPTâ5.1 more intuitive and communicative.
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