StepFun
Step 5 Preview
stepfun/step-5-preview
Input
$1.00
per 1M tokens
Output
$2.70
per 1M tokens
Cached input
$0.10
per 1M tokens
Step 5 Preview is StepFun's flagship model for agentic work, built on a sparse Mixture-of-Experts architecture (27B active / 600B total parameters). It performs strongly in software engineering and professional...
- Released
- Context window
- 1M tokens
- Max output
- 64K tokens
- Input
- text, image, video
- Output
- text
- Reasoning
- Yes
Price history
No price changes since we started tracking on .
Providers on OpenRouter
3 endpoints serve this model. Uptime is OpenRouter's share of successful requests; prices per 1M tokens.
| Provider | Input | Output | Context window | Uptime 30 min | Uptime 24 h |
|---|---|---|---|---|---|
| StepFunfp8 | $1.00 | $2.70 | 1M | 100% | 100% |
| DeepInfrafp8 | $1.00 | $2.70 | 1M | — | 99.16% |
| Featherlessfp4 | $1.00 | $2.70 | 262K | — | 94.5% |