StepFun: Step 5 Preview
stepfun/step-5-preview
- Input / M
- $1.00
- Output / M
- $2.70
- Context
- 1M
- Max output
- 64K
- Listed since
- Oct 8, 2026
- Can do
- Tools · Vision · Reasoning
Reliability
Measured · signed cheapoS reportsNo reports yet. Missing reports aren't a failure or a zero. Share your cheapoS usage to help measure it.
Where to get it
All free tiers →| Listing | Price / M | Limits | Link |
|---|---|---|---|
| OpenRouter · paid routestepfun/step-5-preview | $1.00 / $2.70 | Pay as you go; no free-route caps. | Open ↗ |
Free routes are served by different providers with their own data policies. Check a route's page on OpenRouter before sending private code. OpenRouter terms, checked Sep 29, 2026
About
OpenRouter descriptionStep 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...
Knowledge cutoff: Not reported.
Catalog data from the OpenRouter model catalog, retrieved Oct 8, 2026, 1:37 PM UTC. A listing isn't a live availability check. How we measure