StepFun: AI model benchmarks
AI models from StepFun. Rank among companies: #15. Strongest model: Step 5 Preview (Rating 1828, #44 overall). Latest release: Step 5 Preview (Sep 20, 2026).
Current models, released in the last 18 months
| Rank | Model | Rating | Released | Access |
|---|---|---|---|---|
| 44 | Step 5 Preview | 1828 ± 12 | Sep 20, 2026 | API |
| 236 | Step 3.7 Flash | 1684 ± 10 | May 29, 2026 | Open |
| 270 | Step 3.5 Flash | 1670 ± 8 | Feb 2, 2026 | Open |
| 365 | Step-3 | 1628 ± 18 | Jul 28, 2025 | Open |
| 485 | Step3 VL 10B | 1587 ± 11 | Jan 20, 2026 | Open |
Interactive version: theaggregate.ai/company?slug=stepfun · How It Works · Data refreshed daily, snapshot 2026-10-20.