D
Step 5 Preview
Step 5 Preview, a language model from DeepInfra.
modelOverride: { model: "step-5-preview" }
SStepFun·served viaDeepInfra·Released October 2026
Pricing
- Input
- $1.00 / 1M
- Output
- $2.70 / 1M
- Cached input
- $0.100 / 1M
Specifications
- Context window
- 1,048,576 tokens
- Max output
- 65,536 tokens
- Released
- October 2026
- Model string
- stepfun-ai/Step-5-Preview
- Capabilities
- VisionReasoningLarge contextMultimodal
Parameters
Model options, passed in
modelOverride.config.| Parameter | Type | Default | Range / options |
|---|---|---|---|
reasoning_effortReasoning is always on. Higher effort improves quality on hard tasks and uses more tokens. | Select | high | lowmediumhigh |
Use this model
await mindstudio.generateText({ message: "...", modelOverride: { model: "step-5-preview", config: { reasoning_effort: "high", }, }, });