StepFun: Step 3.5 Flash
stepfun/step-3.5-flash
Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token....
Modalities
Text
In / out price
₩176 / ₩527
1M
Context
262.14K
Released
Jan 30, 2026
Providers
Several places host the same model. Requests are spread by priority and health, and a local GPU always goes first when one is available.
| Provider | Context | Quantization | Max output | Priority | State |
|---|---|---|---|---|---|
| OpenRouter | 262.14K | — | — | 50 | unknown |