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StepFun - AI Provider | AI Model APIs | AI Model APIs

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StepFun

StepFun

2 models available

Models

Browse all models from StepFun

Step 3.5 Flash

stepfun-ai

ReasoningTool UseOpen Weights

Input

$0.10/1M

Output

$0.29/1M

Context

256K

Max Output

256K

Step 3.5 Flash 2603

stepfun-ai

ReasoningTool UseOpen Weights

Input

$0.10/1M

Output

$0.30/1M

Context

256K

Max Output

256K

API Integration

NPM Package

@ai-sdk/openai-compatible

Environment Variables

STEPFUN_API_KEY

API Base URL

https://api.stepfun.ai/step_plan/v1