waypoints.si The sky Every system The lead Countries Forecast revisions
GPT-5.3-Codex-Spark
OpenAI, 12 Feb 2026.
- Lab
- OpenAI
- Released
- 12 Feb 2026
- Kind
- Language, Language modeling/generation
- Training compute
- Not disclosed
- Parameters
- Not disclosed
- Organisations
- OpenAI
- Country
- United States
See it in the 3D sky Paper or announcement
Data: Epoch AI (Creative Commons Attribution), releases too new for it from OpenRouter, and METR. Updated 25 Sep 2026.