Qwen3.5 397b
Qwen
qwen/qwen3.5-397b
Reasoning model, 131K context
Context Window
131K
131,072 tokens
Max Output
33K
32,768 tokens
About this model
Qwen 3.5 397B MoE flagship, top-tier reasoning
This model supports up to 131K tokens of context. It excels at complex reasoning, mathematical problems, and multi-step tasks. It provides strong code generation and debugging capabilities.
Access it through Chuizi.AI with a single ck- API key β no separate Alibaba account needed.
Highlights
131K context window
33K max output
Advanced reasoning
Strong code generation
Best For
Complex coding tasksAlgorithm designCode reviewTechnical architecture
2026-01-01
Capabilities
ChatReasoningCodetools
Aliases
qwen3.5-397bPricing (per 1M tokens)
| Pricing (per 1M tokens) | / 1M tokens |
|---|---|
| Input / 1M | $0.41 |
| Output / 1M | $2.46 |
Final prices shown
Quick Start
main.py
from openai import OpenAI client = OpenAI( base_url="https://api.chuizi.ai/v1", api_key="ck-your-key-here", ) response = client.chat.completions.create( model="qwen/qwen3.5-397b", messages=[{"role": "user", "content": "Hello!"}], ) print(response.choices[0].message.content)