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Claude Opus 5.5 vs Qwen2 7B Instruct

Claude Opus 5.5 leads the LLM Stats Score 59.7 to -4.5.

Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Claude Opus 5.5 leads the overall LLM Stats Score 59.7 to -4.5, ranking #1 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Opus 5.5

  • overall performance matters — it scores 59.7 and ranks #1 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Qwen2 7B Instruct

  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Opus 5.5
Anthropic
Qwen2 7B Instruct
Alibaba Cloud / Qwen Team
Core performance indexes
LLM Stats Score
59.7
#1
-4.5
#354
Reasoning
57.8
#1
-4.2
#347
Coding
51.7
#1
0.9
#242
Cost, coverage & limits
Benchmark wins
—
—
Input price
$4.00 / M
— / M
Output price
$20.00 / M
— / M
Context window
1,000,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Opus 5.5
Qwen2 7B Instruct
Math
42.5#5
-1.5#304
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

31 reported for Claude Opus 5.5 · 14 for Qwen2 7B Instruct

No common benchmarks found

Claude Opus 5.5 and Qwen2 7B Instructdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude Opus 5.5 specifies input context (1,000,000 tokens). Only Claude Opus 5.5 specifies output context (128,000 tokens).

Anthropic
Claude Opus 5.5
Input1,000,000 tokens
Output128,000 tokens
Alibaba Cloud / Qwen Team
Qwen2 7B Instruct
Input- tokens
Output- tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Opus 5.5 supports multimodal inputs, whereas Qwen2 7B Instruct does not.

Claude Opus 5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 5.5

Text
Images
Audio
Video

Qwen2 7B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 5.5 is licensed under a proprietary license, while Qwen2 7B Instruct uses Apache 2.0.

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

Claude Opus 5.5

Proprietary

Closed source

Qwen2 7B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Opus 5.5 was released on 2026-09-22, while Qwen2 7B Instruct was released on 2024-07-23.

Claude Opus 5.5 is 26 months newer than Qwen2 7B Instruct.

Claude Opus 5.5

Sep 22, 2026

0 days ago

2.2yr newer
Qwen2 7B Instruct

Jul 23, 2024

2.2 years ago

Knowledge Cutoff

When training data ends

Claude Opus 5.5 has a documented knowledge cutoff of 2026-06-01, while Qwen2 7B Instruct's cutoff date is not specified.

We can confirm Claude Opus 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without Qwen2 7B Instruct's cutoff date.

Claude Opus 5.5

Jun 2026

Qwen2 7B Instruct

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Opus 5.5 and Qwen2 7B Instruct side-by-side, then vote on the output you prefer.

Claude Opus 5.5
✓ Preferred
Qwen2 7B Instruct
Open in Playground

FAQ

Common questions about Claude Opus 5.5 vs Qwen2 7B Instruct.

Which is better, Claude Opus 5.5 or Qwen2 7B Instruct?

Claude Opus 5.5 leads the LLM Stats Score 59.7 to -4.5. Claude Opus 5.5 is made by Anthropic and Qwen2 7B Instruct is made by Alibaba Cloud / Qwen Team. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Opus 5.5 compare to Qwen2 7B Instruct in benchmarks?

Claude Opus 5.5 scores BenchCAD (with Python tool): 96.2%, Global-MMLU: 94.3%, SWE-bench Multilingual: 93.9%, MILU: 93.1%, ArXivMath: 91.2%. Qwen2 7B Instruct scores MT-Bench: 84.1%, GSM8k: 82.3%, HumanEval: 79.9%, C-Eval: 77.2%, AlignBench: 72.1%.

What are the context window sizes for Claude Opus 5.5 and Qwen2 7B Instruct?

Claude Opus 5.5 supports 1.0M tokens and Qwen2 7B Instruct supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Opus 5.5 and Qwen2 7B Instruct?

Key differences include LLM Stats Score (59.7 vs -4.5), multimodal support (yes vs no), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 5.5 and Qwen2 7B Instruct?

Claude Opus 5.5 is developed by Anthropic and Qwen2 7B Instruct is developed by Alibaba Cloud / Qwen Team.

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