Standard & Paid Price
Standard Price
| Meter | Standard Price |
|---|---|
| Input price | $0.1000 / 1M tokens |
| Completion price | $0.3000 / 1M tokens |
| Cache read price | $0.0200 / 1M tokens |
Billing details
Vendor list price comparison
Description
StepFun step-3.5-flash — text-only reasoning model with 256K context, aimed at logic, mathematics, software engineering, and deep-research work where reasoning quality has to come with fast, reliable execution. Reasoning depth is selectable per request through reasoning_effort (low / medium / high). Supports tool calling, JSON Schema structured output, streaming, and prompt caching. For image or video input use step-3.7-flash.
Capabilities
- Tasks
- chat, reasoning
API endpoints
POST /v1/messages(anthropic)POST /v1/chat/completions(openai)