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| Spec | StepFun |
|---|---|
| Params | 199B |
| Architecture | moe |
| Context | 262K |
| Weights | |
| License | Apache License 2.0 |
| 125.7 GBest | |
| Cheapest hosted (out/1M) | $0.30 · OpenRouter |
| Released | Feb 1, 2026 |
| Arena Coding | 1450.4 |
| Arena Creative Writing | 1344.6 |
| Arena Hard Prompts | 1413.3 |
| Arena Instruction Following | 1385.4 |
| Arena Maths | 1407.3 |
| Arena Text (overall) | 1394.6 |
