OpenAI Codex (OAuth) model
GPT-5.3 Codex Spark
OpenAI Codex OAuth model available through the ChatGPT Codex backend.
- Provider
- OpenAI Codex (OAuth)
- Availability
- Available
- Model ID
- gpt-5.3-codex-spark
- Snapshot
- 2026-08-28
GPT-5.3 Codex Spark model overview
GPT-5.3 Codex Spark is listed in the public Swarm catalog through OpenAI Codex (OAuth). This page summarizes the verified catalog fields used by Swarm without claiming real-time access for every provider account.
- Provider
- OpenAI Codex (OAuth)
- Family
- Gpt 5
- Context window
- 128K tokens
- Thinking support
- off · low · medium · high
- Availability status
- Available
- Catalog ID
- codex/gpt-5.3-codex-spark
Public catalog snapshot. Catalog availability is not a real-time provider status or an access guarantee.