model-prices checks these prices daily against StepFun's pricing page. Prices are in US dollars per million tokens.
| Model | Provider | Input | Cached input | Cache write | Output | Longer prompts | Since |
|---|---|---|---|---|---|---|---|
| step-1-32k | StepFun | $2.05 | $0.41 | $9.59 | 2026-02-16 | ||
| step-1o-audio | StepFun | $3.57 | $0.71 | $8.57 | 2026-10-08 | ||
| step-1o-turbo-vision | StepFun | $0.36 | $0.07 | $1.15 | 2026-10-08 | ||
| step-2-16k | StepFun | $5.21 | $1.04 | $16.44 | 2026-02-16 | ||
| step-3.5-flash | StepFun | $0.10 | $0.02 | $0.30 | 2026-06-16 | ||
| step-3.5-flash-2603 | StepFun | $0.10 | $0.02 | $0.30 | 2026-04-07 | ||
| step-3.7-flash | StepFun | $0.20 | $0.04 | $1.15 | 2026-10-07 | ||
| step-5-preview | StepFun | $1.00 | $0.10 | $2.70 | 2026-10-09 | ||
| step-audio-2 | StepFun | $1.43 | $0.29 | $10.00 | 2026-10-08 | ||
| step-audio-r1.5 | StepFun | $1.43 | $0.29 | $15.00 | 2026-10-08 | ||
| stepaudio-2.5-chat | StepFun | $1.50 | $0.30 | $3.50 | 2026-10-08 | ||
| stepaudio-2.5-realtime | StepFun | $1.50 | $0.30 | $10.00 | 2026-10-08 |