Pyyan / Compare / Step 3.5 Flash vs Kimi K3
Step 3.5 Flash vs Kimi K3
2 of 5Open-Weight Models · verified 13 Aug 2026
Step 3.5 FlashStepFuncurrentKimi K3Moonshot AIcurrent
| Specification | Step 3.5 Flash | Kimi K3 |
|---|---|---|
| Summary | Multimodal-focused Chinese model. | Largest open-weight model shipped. |
| Licence | Open weights | Open weights |
| Parameters | — | 2.8T |
| Released | — | 17 Jul 2026 |
| Category | Open-Weight Models | Open-Weight Models |
| Official | StepFun ↗ | Moonshot AI ↗ |
Highlighted rows are where these differ.