Step 1 is a general purpose, foundation AI model developed by Stepfun, part of the Step family. It was released on 2024-02-01. Its tracked lifecycle status is active. It supports a context window of 131,072 tokens.
Specifications
- Organización
- Stepfun
- Model family
- Step
- Generation
- 1
- Estado
- active
- Released
- 2024-02-01
- Model type
- General Purpose, Foundation
- Input modalities
- text
- Output modalities
- text
- Context window
- 131,072 tokens
- Licencia
- Proprietary
- Pesos
- closed weights
- API oficial
- Yes
- Alojamiento propio
- No
- Last verified
- 2026-08-01
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