Step 5 Preview
StepFunOpen weights1.05M context
Step 5 Preview is an open-weights model from StepFun with a 1.05M-token context window. 3 providers list it, all at $1.00 per million input tokens and $2.70 per million output tokens.
- Maker
- StepFun
- Licence
- Open weights
- Context window
- 1.05M
- Providers listed
- 3
- Lowest input, per 1M
- $1.00
- Lowest output, per 1M
- $2.70
- StepFun's own API, per 1M
- $1.00 in · $2.70 out
Providers serving Step 5 Preview
Cheapest first, by the blended rate of three input tokens to one output token. Prices in US dollars per million tokens, as of 26 Oct 2026.
| Provider | Input | Output | Context | Tools | JSON mode | OpenAI-compatible | Model ID |
|---|---|---|---|---|---|---|---|
DeepInfra | $1.00 | $2.70 | 1.05M | Yes | Yes | No | stepfun-ai/Step-5-Preview |
Novita | $1.00 | $2.70 | 1M | Yes | Yes | Yes | stepfun/step-5-preview |
StepFun | $1.00 | $2.70 | 1M | Yes | Yes | Yes | step-5-preview |