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| 2 models | stepfunStepFun: Step 3.5 FlashRemove × | briaBria Guided Remove BackgroundRemove × |
|---|---|---|
| What’s different | 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.... | Name the objects to keep or remove; returns the original pixels with an alpha channel, without repainting the subject. |
| Date | Jan 29, 2026Listed | Oct 10, 2026Listed |
API prices USD · provider configuration shown below | ||
| Listed rate | $0.10 in / $0.30 out/ 1M tokensdeepinfra · via Hugging Face · all routes ↗ | $0.03/ imagefal · all routes ↗ |
| Provider endpoints | 4 endpoints → | 1 endpoint → |
Specifications | ||
| Context window | 262.1K | — |
| Max output | 65.5K | — |
| Parameters | — | — |
| Tool calling | Supported | Not reported |
| Structured output | Supported | Not reported |
| Reasoning | Supported | Not reported |
| Open weights | Supported | Not reported |