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-2603 — the agent-tuned 256K snapshot of step-3.5-flash, optimized for token efficiency and a low-inference operating mode. Its reasoning_effort parameter accepts only low and high, where the base model takes three levels, so code that sends medium must be adapted. Text-only; supports tool calling, JSON Schema structured output, streaming, and prompt caching.
Capabilities
- Tasks
- chat, reasoning
API endpoints
POST /v1/chat/completions(openai)POST /v1/messages(anthropic)