Step 5 Preview Free
step-5-preview-free
StepFun's next-generation flagship base model for coding and professional knowledge work, with native text, image, and video input and a 1M-token context window
Specification
most-agreed values
Context
1M
Max output
66K
Released
2026-09-16
Knowledge cutoff
—
Retires
—
Open weights
yes
Input
text, image, video
Output
text
Price
US dollars per million tokens · most-agreed
Input
free
Output
free
Cache read
free
Available from 2 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| opencode | free | free | free | — | 1M | 66K | — |
| opencode-go | free | free | free | — | 1M | 66K | — |