Get Started with Qwen3.5-397B-A17B on OpenRouter
OpenRouter offers access to Qwen3.5-397B-A17B with a 262144 context window. Multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.39 |
| Output tokens | $2.34 |
Capabilities
VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution
About Qwen3.5-397B-A17B
Alibaba's largest Qwen 3.5 model, featuring a Mixture-of-Experts architecture with 397B total parameters and 17B active per token (using 512 total experts with 10 routed + 1 shared active). Supports 201 languages with a native 262K token context window extensible to 1M tokens via YaRN. Includes a thinking/reasoning mode, tool calling with MCP integration, and unified vision-language capabilities through early fusion training.
Model Specs
Released2026-02-16
Parameters397B
Context262K
ArchitectureMoE