Claude 3.5 Sonnet vs Qwen3.5-27B Comparison

Comparing Claude 3.5 Sonnet and Qwen3.5-27B across benchmarks, pricing, and capabilities.

Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Claude 3.5 Sonnet outperforms in 1 benchmarks (AI2D), while Qwen3.5-27B is better at 4 benchmarks (GPQA, MMLU-Pro, MMMU, SWE-Bench Verified).

Qwen3.5-27B significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Cost data unavailable.

Lowest available price from all providers
Sat Mar 14 2026 • llm-stats.com
Anthropic
Claude 3.5 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
Alibaba Cloud / Qwen Team
Qwen3.5-27B
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
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Context Window

Maximum input and output token capacity

Only Claude 3.5 Sonnet specifies input context (200,000 tokens). Only Claude 3.5 Sonnet specifies output context (200,000 tokens).

Anthropic
Claude 3.5 Sonnet
Input200,000 tokens
Output200,000 tokens
Alibaba Cloud / Qwen Team
Qwen3.5-27B
Input- tokens
Output- tokens
Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3.5 Sonnet and Qwen3.5-27B support multimodal inputs.

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

Claude 3.5 Sonnet

Text
Images
Audio
Video

Qwen3.5-27B

Text
Images
Audio
Video

License

Usage and distribution terms

Claude 3.5 Sonnet is licensed under a proprietary license, while Qwen3.5-27B uses Apache 2.0.

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

Claude 3.5 Sonnet

Proprietary

Closed source

Qwen3.5-27B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude 3.5 Sonnet was released on 2024-10-22, while Qwen3.5-27B was released on 2026-02-24.

Qwen3.5-27B is 16 months newer than Claude 3.5 Sonnet.

Claude 3.5 Sonnet

Oct 22, 2024

1.4 years ago

Qwen3.5-27B

Feb 24, 2026

2 weeks ago

1.3yr 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

Outputs Comparison

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Key Takeaways

Larger context window (200,000 tokens)
Higher AI2D score (94.7% vs 92.9%)
Alibaba Cloud / Qwen Team

Qwen3.5-27B

View details

Alibaba Cloud / Qwen Team

Has open weights
Higher GPQA score (85.5% vs 67.2%)
Higher MMLU-Pro score (86.1% vs 77.6%)
Higher MMMU score (82.3% vs 68.3%)
Higher SWE-Bench Verified score (72.4% vs 49.0%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.5 Sonnet
Alibaba Cloud / Qwen Team
Qwen3.5-27B