Claude Sonnet 4 vs Qwen3.5-397B-A17B Comparison

Comparing Claude Sonnet 4 and Qwen3.5-397B-A17B across benchmarks, pricing, and capabilities.

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude Sonnet 4 outperforms in 0 benchmarks, while Qwen3.5-397B-A17B is better at 3 benchmarks (GPQA, MMMLU, SWE-Bench Verified).

Qwen3.5-397B-A17B significantly outperforms across most benchmarks.

Sun Mar 15 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Qwen3.5-397B-A17B costs less

For input processing, Claude Sonnet 4 ($3.00/1M tokens) is 5.0x more expensive than Qwen3.5-397B-A17B ($0.60/1M tokens).

For output processing, Claude Sonnet 4 ($15.00/1M tokens) is 4.2x more expensive than Qwen3.5-397B-A17B ($3.60/1M tokens).

In conclusion, Claude Sonnet 4 is more expensive than Qwen3.5-397B-A17B.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sun Mar 15 2026 • llm-stats.com
Anthropic
Claude Sonnet 4
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
Alibaba Cloud / Qwen Team
Qwen3.5-397B-A17B
Input tokens$0.60
Output tokens$3.60
Best providerNovita
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Context Window

Maximum input and output token capacity

Qwen3.5-397B-A17B accepts 262,144 input tokens compared to Claude Sonnet 4's 200,000 tokens. Both models can generate responses up to 64,000 tokens.

Anthropic
Claude Sonnet 4
Input200,000 tokens
Output64,000 tokens
Alibaba Cloud / Qwen Team
Qwen3.5-397B-A17B
Input262,144 tokens
Output64,000 tokens
Sun Mar 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Sonnet 4 and Qwen3.5-397B-A17B support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Sonnet 4

Text
Images
Audio
Video

Qwen3.5-397B-A17B

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Sonnet 4 is licensed under a proprietary license, while Qwen3.5-397B-A17B uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Claude Sonnet 4

Proprietary

Closed source

Qwen3.5-397B-A17B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Sonnet 4 was released on 2025-05-22, while Qwen3.5-397B-A17B was released on 2026-02-16.

Qwen3.5-397B-A17B is 9 months newer than Claude Sonnet 4.

Claude Sonnet 4

May 22, 2025

9 months ago

Qwen3.5-397B-A17B

Feb 16, 2026

3 weeks ago

9mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Claude Sonnet 4 is available from Anthropic, Bedrock, Google. Qwen3.5-397B-A17B is available from Novita. The availability of providers can affect quality of the model and reliability.

Claude Sonnet 4

anthropic logo
Anthropic
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
google logo
Google
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Qwen3.5-397B-A17B

novita logo
Novita
Input Price:Input: $0.60/1MOutput Price:Output: $3.60/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Alibaba Cloud / Qwen Team

Qwen3.5-397B-A17B

View details

Alibaba Cloud / Qwen Team

Larger context window (262,144 tokens)
Less expensive input tokens
Less expensive output tokens
Has open weights
Higher GPQA score (88.4% vs 75.4%)
Higher MMMLU score (88.5% vs 86.5%)
Higher SWE-Bench Verified score (76.4% vs 72.7%)
AnthropicClaude Sonnet 4
Alibaba Cloud / Qwen TeamQwen3.5-397B-A17B

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Sonnet 4
Alibaba Cloud / Qwen Team
Qwen3.5-397B-A17B