StepFun models: prices and providers
StepFun has 11 models on AIModelFind (6 text, 4 audio, 1 vision). 5 have open weights, and 12 providers serve them.
All StepFun models
Most searched first. The price is the lowest across providers.
| Model | Lowest price | Providers | Context | License | Released |
|---|---|---|---|---|---|
| GOT-OCR 2.0 | $0.05/img | 1 | — | Apache 2.0 | Sep 12, 2024 |
| Step 2 16K | $2/1M | 1 | — | — | — |
| Step 3.5 Flash | $0.292/1M | 8 | 256K | Apache 2.0 | Feb 1, 2026 |
| Step 3.5 Flash 2603 | $0.30/1M | 1 | 256K | — | — |
| Step 3.7 Flash | $0.925/1M | 14 | 262K | Apache 2.0 | May 23, 2026 |
| Step 5 Preview | $2.70/1M | 14 | 1.05M | other | Sep 20, 2026 |
| Step3 | $2.75/1M | 1 | — | Apache 2.0 | Jul 28, 2025 |
| Stepaudio 2.5 | $3.50/1M | 1 | 256K | — | — |
| Stepaudio 2.5 Realtime | $10/1M | 1 | 262K | — | — |
| Stepaudio 3 | $3.50/1M | 1 | 262K | — | — |
| Stepaudio 3 Realtime | $10/1M | 1 | 262K | — | — |
Where to use StepFun models
Providers serving the most StepFun models.
StepFun at a glance
11 models in total: 6 text, 4 audio, 1 vision. The cheapest is Step 3.5 Flash at $0.292 /1M. Step 5 Preview has the largest context window, 1.05M tokens. The newest is Step 5 Preview, released Sep 20, 2026.
Cheapest
- Step 3.5 Flash$0.292/1M
- Step 3.5 Flash 2603$0.30/1M
- Step 3.7 Flash$0.925/1M
- Step 2 16K$2/1M
- Step 5 Preview$2.70/1M
Largest context
- Step 5 Preview1.05M
- Step 3.7 Flash262K
- Stepaudio 2.5 Realtime262K
- Stepaudio 3262K
- Stepaudio 3 Realtime262K
Newest
- Step 5 PreviewSep 20, 2026
- Step 3.7 FlashMay 23, 2026
- Step 3.5 FlashFeb 1, 2026
- Step3Jul 28, 2025
- GOT-OCR 2.0Sep 12, 2024
StepFun models FAQ
We track 11 StepFun models: Text 6, Audio 4, Vision 1.
Among StepFun's text models, Step 3.5 Flash is the cheapest at $0.292 per 1M output tokens.
Yes, 5 StepFun models have weights you can download from StepFun's Hugging Face page.
12 providers serve StepFun models, including EmpirioLabs AI, AIHubMix, ZenMux, OpenRouter, Hugging Face.
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