o3 is a reasoning, general purpose AI model developed by OpenAI, part of the o family. It was released on 2025-01-31. Its tracked lifecycle status is active. It supports a context window of 128,000 tokens.
Specifications
- Organisation
- OpenAI
- Model family
- o
- Generation
- 3
- Statut
- active
- Released
- 2025-01-31
- Model type
- Reasoning, General Purpose
- Input modalities
- text
- Output modalities
- text
- Context window
- 128,000 tokens
- Licence
- Proprietary
- Poids
- closed weights
- API officielle
- Yes
- Auto-hébergement
- Non
- Last verified
- 2026-08-01
Related models in the o family
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