AI lab
StepFun
stepfun
4
active models
Language models
StepFun · Latest releases
Video models
StepFun · Latest releases
Catalogue
All models by StepFun
4 models · Showing 1–4
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
| September 16, 2026 | 1.0M | $1.00 | $2.70 | — | Text | text, image, video → text | Closed | ||
| May 29, 2026 | 262K | $0.20 | $1.15 | — | Text | text, image, video → text | Open weights | ||
| April 2, 2026 | 256K | — | — | — | Text | text → text | Open weights | ||
| January 29, 2026 | 262K | $0.10 | $0.30 | — | Text | text → text | Open weights |