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
—
Apps using this model
Top apps by tokens routed through Reroute in the last 30 days. Apps appear here when they send an X-Title header.
No usage through Reroute yet
Once apps call this model with an X-Title header, they're ranked here by tokens.