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Claude Mythos 5.1 vs Qwen2-VL-72B-Instruct

Claude Mythos 5.1 leads the LLM Stats Score 45.1 to 14.4.

Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Claude Mythos 5.1 leads the overall LLM Stats Score 45.1 to 14.4, ranking #31 overall.

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

Choose Claude Mythos 5.1

  • overall performance matters — it scores 45.1 and ranks #31 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Qwen2-VL-72B-Instruct

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

At a glance

The differences that matter most.

Claude Mythos 5.1
Anthropic
Qwen2-VL-72B-Instruct
Alibaba Cloud / Qwen Team
Core performance indexes
LLM Stats Score
45.1
#31
14.4
#235
Reasoning
44.4
#34
11.7
#250
Cost, coverage & limits
Benchmark wins
—
—
Input price
$10.00 / M
— / M
Output price
$50.00 / M
— / M
Context window
1,000,000
—

Individual benchmarks

1 reported for Claude Mythos 5.1 · 15 for Qwen2-VL-72B-Instruct

No common benchmarks found

Claude Mythos 5.1 and Qwen2-VL-72B-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 Mythos 5.1 specifies input context (1,000,000 tokens). Only Claude Mythos 5.1 specifies output context (128,000 tokens).

Anthropic
Claude Mythos 5.1
Input1,000,000 tokens
Output128,000 tokens
Alibaba Cloud / Qwen Team
Qwen2-VL-72B-Instruct
Input- tokens
Output- tokens
Wed Sep 09 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Mythos 5.1 and Qwen2-VL-72B-Instruct support multimodal inputs.

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

Claude Mythos 5.1

Text
Images
Audio
Video

Qwen2-VL-72B-Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Mythos 5.1 is licensed under a proprietary license, while Qwen2-VL-72B-Instruct uses tongyi-qianwen.

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

Claude Mythos 5.1

Proprietary

Closed source

Qwen2-VL-72B-Instruct

tongyi-qianwen

Open weights

Release Timeline

When each model was launched

Claude Mythos 5.1 was released on 2026-09-01, while Qwen2-VL-72B-Instruct was released on 2024-08-29.

Claude Mythos 5.1 is 24 months newer than Qwen2-VL-72B-Instruct.

Claude Mythos 5.1

Sep 1, 2026

1 weeks ago

2.0yr newer
Qwen2-VL-72B-Instruct

Aug 29, 2024

2.0 years ago

Knowledge Cutoff

When training data ends

Qwen2-VL-72B-Instruct has a documented knowledge cutoff of 2023-06-30, while Claude Mythos 5.1's cutoff date is not specified.

We can confirm Qwen2-VL-72B-Instruct's training data extends to 2023-06-30, but cannot make a direct comparison without Claude Mythos 5.1's cutoff date.

Claude Mythos 5.1

—

Qwen2-VL-72B-Instruct

Jun 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Mythos 5.1 and Qwen2-VL-72B-Instruct side-by-side, then vote on the output you prefer.

Claude Mythos 5.1
✓ Preferred
Qwen2-VL-72B-Instruct
Open in Playground

FAQ

Common questions about Claude Mythos 5.1 vs Qwen2-VL-72B-Instruct.

Which is better, Claude Mythos 5.1 or Qwen2-VL-72B-Instruct?

Claude Mythos 5.1 leads the LLM Stats Score 45.1 to 14.4. Claude Mythos 5.1 is made by Anthropic and Qwen2-VL-72B-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 Mythos 5.1 compare to Qwen2-VL-72B-Instruct in benchmarks?

Claude Mythos 5.1 scores Terminal-Bench 4.0: 60.9%. Qwen2-VL-72B-Instruct scores DocVQAtest: 96.5%, VCR_en_easy: 91.9%, ChartQA: 88.3%, OCRBench: 87.7%, MMBench: 86.5%.

What are the context window sizes for Claude Mythos 5.1 and Qwen2-VL-72B-Instruct?

Claude Mythos 5.1 supports 1.0M tokens and Qwen2-VL-72B-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 Mythos 5.1 and Qwen2-VL-72B-Instruct?

Key differences include LLM Stats Score (45.1 vs 14.4), licensing (Proprietary vs tongyi-qianwen). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Mythos 5.1 and Qwen2-VL-72B-Instruct?

Claude Mythos 5.1 is developed by Anthropic and Qwen2-VL-72B-Instruct is developed by Alibaba Cloud / Qwen Team.

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