# OpenAI — Building more with GPT-5.1-Codex-Max

- Company: OpenAI (openai.com)
- Announced: 2025-11-19T00:00:00+00:00
- Category: new-model
- Subject: GPT / ChatGPT / API
- Models affected: GPT-5.1-Codex-Max
- Source: https://openai.com/index/gpt-5-1-codex-max
- Record: https://forck.live/items/377-building-more-with-gpt-5-1-codex-max

OpenAI announced GPT-5.1-Codex-Max, a new coding model for Codex with improved speed, intelligence, reasoning, and token efficiency.

## Evidence

Verbatim from https://openai.com/index/gpt-5-1-codex-max:

> Introducing GPT-5.1-Codex-Max, a faster, more intelligent agentic coding model for Codex.

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Record: https://forck.live/items/377-building-more-with-gpt-5-1-codex-max
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