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Step 5 Preview
StepFun's next-generation flagship base model for coding and professional knowledge work, with native text, image, and video input and a 1M-token context window
- Family
- -
- Providers
- 12
- Context
- 1,000,000
- Output
- 1,000,000
- Knowledge
- -
- Weights
- Closed
- Input
- textimagevideo
- Output
- text
- Release date
- 2026-09-16
- Updated
- 2026-09-20
Providers
Source: models.dev