OpenAI model
GPT 5.1 Codex
GPT 5.1 Codex in the public OpenAI catalog.
- Provider
- OpenAI
- Availability
- Available
- Model ID
- gpt-5.1-codex
- Snapshot
- 2026-08-28
GPT 5.1 Codex model overview
GPT 5.1 Codex 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
Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.