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Claude Opus 4.5 vs Qwen2.5 14B Instruct

Claude Opus 4.5 leads the LLM Stats Score 38.2 to 3.8.

Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Claude Opus 4.5 leads the overall LLM Stats Score 38.2 to 3.8, ranking #72 overall.

In the 1 individual benchmarks reported for both models, Claude Opus 4.5 wins 1; this is a narrower head-to-head signal than the composite indexes.

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

Choose Claude Opus 4.5

  • overall performance matters — it scores 38.2 and ranks #72 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Nov 2025

Choose Qwen2.5 14B Instruct

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

At a glance

The differences that matter most.

Claude Opus 4.5
Anthropic
Qwen2.5 14B Instruct
Alibaba Cloud / Qwen Team
Core performance indexes
LLM Stats Score
38.2
#72
3.8
#312
Reasoning
39.9
#59
3.3
#307
Coding
28.1
#63
3.9
#220
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$5.00 / M
— / M
Output price
$25.00 / M
— / M
Context window
200,000
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Opus 4.5
Qwen2.5 14B Instruct
Math
32.3#61
10.6#251
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Claude Opus 4.5 · 16 for Qwen2.5 14B Instruct

1 shared

Claude Opus 4.5 outperforms in 1 benchmarks (GPQA), while Qwen2.5 14B Instruct is better at 0 benchmarks.

Claude Opus 4.5 significantly outperforms across most benchmarks.

Wed Sep 23 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude Opus 4.5 specifies input context (200,000 tokens). Only Claude Opus 4.5 specifies output context (64,000 tokens).

Anthropic
Claude Opus 4.5
Input200,000 tokens
Output64,000 tokens
Alibaba Cloud / Qwen Team
Qwen2.5 14B Instruct
Input- tokens
Output- tokens
Wed Sep 23 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Opus 4.5 supports multimodal inputs, whereas Qwen2.5 14B Instruct does not.

Claude Opus 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 4.5

Text
Images
Audio
Video

Qwen2.5 14B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4.5 is licensed under a proprietary license, while Qwen2.5 14B Instruct uses Apache 2.0.

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

Claude Opus 4.5

Proprietary

Closed source

Qwen2.5 14B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Qwen2.5 14B Instruct was released on 2024-09-19.

Claude Opus 4.5 is 14 months newer than Qwen2.5 14B Instruct.

Claude Opus 4.5

Nov 24, 2025

10 months ago

1.2yr newer
Qwen2.5 14B Instruct

Sep 19, 2024

2.0 years ago

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a documented knowledge cutoff of 2025-03-31, while Qwen2.5 14B Instruct's cutoff date is not specified.

We can confirm Claude Opus 4.5's training data extends to 2025-03-31, but cannot make a direct comparison without Qwen2.5 14B Instruct's cutoff date.

Claude Opus 4.5

Mar 2025

Qwen2.5 14B Instruct

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Opus 4.5 and Qwen2.5 14B Instruct side-by-side, then vote on the output you prefer.

Claude Opus 4.5
✓ Preferred
Qwen2.5 14B Instruct
Open in Playground

FAQ

Common questions about Claude Opus 4.5 vs Qwen2.5 14B Instruct.

Which is better, Claude Opus 4.5 or Qwen2.5 14B Instruct?

Claude Opus 4.5 leads the LLM Stats Score 38.2 to 3.8. Claude Opus 4.5 is made by Anthropic and Qwen2.5 14B 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 4.5 compare to Qwen2.5 14B Instruct in benchmarks?

Claude Opus 4.5 scores Tau2 Telecom: 98.2%, MMMLU: 90.8%, Tau2 Retail: 88.9%, GPQA: 87.0%, SWE-Bench Verified: 80.9%. Qwen2.5 14B Instruct scores GSM8k: 94.8%, HumanEval: 83.5%, MBPP: 82.0%, MATH: 80.0%, MMLU-Redux: 80.0%.

What are the context window sizes for Claude Opus 4.5 and Qwen2.5 14B Instruct?

Claude Opus 4.5 supports 200K tokens and Qwen2.5 14B 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 4.5 and Qwen2.5 14B Instruct?

Key differences include LLM Stats Score (38.2 vs 3.8), 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 4.5 and Qwen2.5 14B Instruct?

Claude Opus 4.5 is developed by Anthropic and Qwen2.5 14B Instruct is developed by Alibaba Cloud / Qwen Team.

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