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Qwen3.5-397B-A17B

Large-scale Qwen 3.5 model (397B with A17B MoE-style routing indicated by the name) added on OpenRouter, intended for high-end reasoning and generation with a 262K context window.

reasoninglong-contextcode-generation

Overview

Large-scale Qwen 3.5 model (397B with A17B MoE-style routing indicated by the name) added on OpenRouter, intended for high-end reasoning and generation with a 262K context window.

Key Capabilities

  • Reasoning — suited for tasks requiring reasoning proficiency
  • Long Context — suited for tasks requiring long context proficiency
  • Code Generation — suited for tasks requiring code generation proficiency

Recommended Use Cases

  • Complex Reasoning
  • Long Document Analysis
  • High Quality Generation

Technical Specifications

  • Context Window: 262K tokens
  • Open Weight: No
  • Release Date: February 16, 2026

Provider

Qwen3.5-397B-A17B is developed by Alibaba. For the latest information, visit the official documentation.