Compare
| STStep 3.5 FlashStepFun | |
|---|---|
| Best input | $0.10 /MTok |
| Best output | $0.30 /MTok |
| Cache read | — |
| Context | 262K |
| Max output | 66K |
| Modalities in | text |
| Tool calling | ✓ |
| Structured output | — |
| Reasoning | ✓ |
| Vision | — |
| Audio input | — |
| Prompt caching | — |
| Providers | 1 |
| Cheapest provider | SiliconFlow |
| License | Open weights |
| Released | Jan 29, 2026 |