Qwen3.5 397B-A17B API
About
Build advanced reasoning agents with Qwen3.5 397B-A17B, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support, open weights architecture. Access Qwen3.5 397B-A17B via the UnoRouter API with up to 66K output tokens.
Capabilities
Input Modalities
textimagevideoaudio
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
262K
Tokens
Input Limit
262K
Tokens
Max Output
66K
Tokens
Pricing
Standard (per 1M tokens)
Input
Free
Output
Free
Frequently Asked Questions
Qwen3.5 397B-A17B by UnoRouter costs Free per 1M input tokens and Free per 1M output tokens.
Model Details
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
UNOROUTER_API_KEY
API Base URL
https://api.unorouter.com/v1