StepFun AI models from China
| Model | API ID | Release | Cutoff | Conf. | Status | Notes |
|---|---|---|---|---|---|---|
| Step-1 (8B) | step-1-8k |
2024-01 | 2023-09 | low | active | |
| Step-2 (1T MoE) | step-2-16k |
2024-07 | 2024-04 | low | active | Trillion-param MoE. |
| Step-3 | step-3 |
2025-06 | 2025-03 | low | active | Multimodal reasoning. |
Knowledge Cutoffs