OpenRouter model
OpenAI: GPT-5.1-Codex-Max
GPT-5.1-Codex-Max is OpenAI’s latest agentic coding model, designed for long-running, high-context software development tasks. It is based on an updated version of the 5.1 reasoning stack and trained on agentic...
- Provider
- OpenRouter
- Availability
- Available
- Model ID
- openai/gpt-5.1-codex-max
- Snapshot
- 2026-08-28
OpenAI: GPT-5.1-Codex-Max model overview
OpenAI: GPT-5.1-Codex-Max is listed in the public Swarm catalog through OpenRouter. This page summarizes the verified catalog fields used by Swarm without claiming real-time access for every provider account.
- Provider
- OpenRouter
- Family
- OpenRouter
- Context window
- 400K tokens
- Thinking support
- low · medium · high · xhigh
- Availability status
- Available
- Catalog ID
- openrouter/openai/gpt-5.1-codex-max
Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.