OpenAI · Official · Blog Article
Introducing GPT-5.1 for developers
Summary
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.
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Where the other five stand
Related: Meta: Llama Cookbook: Add building with coding assistant readme
Hype check
2/5Worth a look
Rated low: routine. Worth knowing, not worth rearranging your day for.
Prior coverage our earlier items on the same thing
- Addendum to GPT-5 system card: GPT-5-CodexOpenAI News
- Introducing GPT-5 for developersOpenAI News
- Coding and design with GPT-5OpenAI News
- Introducing GPT-5OpenAI News
- Addendum to o3 and o4-mini system card: CodexOpenAI News
- Introducing GPT-4.1 in the APIOpenAI News
Questions people ask
- Where can I read the full story?
- On OpenAI News. The "Read this on OpenAI News" link above opens the original in a new tab. Subvolts publishes a summary and analysis, never the full piece.
- What does this mean for ChatGPT?
- GPT-5.1 is now available in the API, bringing faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch…
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Page generated Sep 3, 2026. Summaries are Subvolts' own; the story belongs to OpenAI News.