# OpenAI — Introducing GPT-5.1 for developers

- Company: OpenAI (openai.com)
- Announced: 2025-11-13T00:00:00+00:00
- Category: model-update
- Subject: GPT / ChatGPT / API
- Models affected: GPT-5.1
- Source: https://openai.com/index/gpt-5-1-for-developers
- Record: https://forck.live/items/384-introducing-gpt-5-1-for-developers

GPT-5.1 is now available in the API with faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch and shell tools.

## Evidence

Verbatim from https://openai.com/index/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.

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