StepFun: Step 5 Preview
stepfun/step-5-preview
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...
Modalities
In / Out Price
$1 / $2.70 per 1M
Context
1M
Released
Oct 8, 2026
Knowledge Cutoff
—
Uptime
Share of successful requests per carrier, measured over the last 5 minutes, 30 minutes and day. When one carrier dips, the router fails over to the next.
Carriers
1
Best carrier, 30m
100.00%
Healthy now
1 / 1
| Provider | Status | Last 5m | Last 30m | Last day |
|---|---|---|---|---|
| StepFun | Operational | 100.00% | 100.00% | 100.00% |