OpenAI model
GPT 5.1 Codex Max
GPT 5.1 Codex Max in the public OpenAI catalog.
- Provider
- OpenAI
- Availability
- Available
- Model ID
- gpt-5.1-codex-max
- Snapshot
- 2026-08-28
GPT 5.1 Codex Max model overview
GPT 5.1 Codex Max is listed in the public Swarm catalog through OpenAI. This page summarizes the verified catalog fields used by Swarm without claiming real-time access for every provider account.
- Provider
- OpenAI
- Family
- Gpt 5
- Context window
- 400K tokens
- Thinking support
- Not supported
- Availability status
- Available
- Catalog ID
- openai/gpt-5.1-codex-max
Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.