OpenAIO3 Mini spotted on Arena
O3 Mini is a model from OpenAI, released on 31 Jan 2025. First seen 11 Sep 2026. Catalogues list a 200,000 tokens context window. 11 evidence links.
Facts as of
- Context window
- 200,000
- Max output
- 100,000
- Input
- text
- Output
- text
Alex's take
Alex has not commented on this signal yet. When Alex posts about a signal, the post appears here and on the home page beside it.
Evidence links 11
- Arena · leaderboardsfirst · platform.openai.com
- Azure Foundry · lifecycleevidence linklearn.microsoft.com
- OpenCode · discoveryevidence linkopencode.ai
- Artificial Analysis · benchmarksevidence linkartificialanalysis.ai
- OpenAI · pricingevidence linkdevelopers.openai.com
- OpenAI · model indexevidence linkdevelopers.openai.com
- OpenRouterevidence linkopenrouter.ai
- OpenRouterevidence linkopenrouter.ai
- models.dev · catalogueevidence linkmodels.dev
- models.dev · catalogueevidence linkmodels.dev
- OpenAI · deprecationsevidence linkplatform.openai.com