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| 2 models | stepfunStepFun: Step 3.5 FlashRemove × | ideogramIdeogram V4.5 Text to ImageRemove × |
|---|---|---|
| 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.... | Generate high-quality images, posters, and logos with Ideogram 4.5, with accurate text rendering and low, medium, or high quality tiers. |
| Date | Jan 29, 2026Listed | Sep 30, 2026Released |
API prices USD · provider configuration shown below | ||
| Listed rate | $0.10 in / $0.30 out/ 1M tokensdeepinfra · via Hugging Face · all routes ↗ | See provider quotes |
| Provider endpoints | 4 endpoints → | 1 endpoint → |
Benchmarks Each result retains its evaluation configuration | ||
| AA Image ↗2.1 | Not reported | 1,015.68 ↗Text-to-image · all categories · quality=highIndependent result95% CI 1,000.68–1,030.68 · n=2,634 |
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 |