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Claude Opus 4.5 vs Qwen3.8 Max

Qwen3.8 Max significantly outperforms across most benchmarks.

Anthropic · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Claude Opus 4.5 outperforms in 0 benchmarks, while Qwen3.8 Max is better at 1 benchmark (GPQA). Qwen3.8 Max significantly outperforms across most benchmarks.

Based on current benchmark, pricing, and model metadata for 2026.

Choose Claude Opus 4.5

  • you want predictable pricing at $5.00/M input and $25.00/M output

Choose Qwen3.8 Max

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Opus 4.5
Anthropic
Qwen3.8 Max
Alibaba Cloud / Qwen Team
Benchmark wins
0 of 1
1 of 1
Input price
$5.00 / M
— / M
Output price
$25.00 / M
— / M
Context window
200,000
—
Released
Nov 2025
Aug 2026
License
Proprietary
Qwen3.8-Max License

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude Opus 4.5 outperforms in 0 benchmarks, while Qwen3.8 Max is better at 1 benchmark (GPQA).

Qwen3.8 Max significantly outperforms across most benchmarks.

Mon Aug 24 2026 • llm-stats.com

Arena Performance

Playground indexes and blind 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
Qwen3.8 Max
Input- tokens
Output- tokens
Mon Aug 24 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Opus 4.5 and Qwen3.8 Max support multimodal inputs.

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

Claude Opus 4.5

Text
Images
Audio
Video

Qwen3.8 Max

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4.5 is licensed under a proprietary license, while Qwen3.8 Max uses Qwen3.8-Max License.

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

Claude Opus 4.5

Proprietary

Closed source

Qwen3.8 Max

Qwen3.8-Max License

Open weights

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Qwen3.8 Max was released on 2026-08-02.

Qwen3.8 Max is 8 months newer than Claude Opus 4.5.

Claude Opus 4.5

Nov 24, 2025

9 months ago

Qwen3.8 Max

Aug 2, 2026

3 weeks ago

8mo newer

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a documented knowledge cutoff of 2025-03-31, while Qwen3.8 Max'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 Qwen3.8 Max's cutoff date.

Claude Opus 4.5

Mar 2025

Qwen3.8 Max

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Opus 4.5 and Qwen3.8 Max side-by-side, then vote on the output you prefer.

Claude Opus 4.5
✓ Preferred
Qwen3.8 Max
Open in Playground

FAQ

Common questions about Claude Opus 4.5 vs Qwen3.8 Max.

Which is better, Claude Opus 4.5 or Qwen3.8 Max?

Qwen3.8 Max significantly outperforms across most benchmarks. Claude Opus 4.5 is made by Anthropic and Qwen3.8 Max is made by Alibaba Cloud / Qwen Team. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Opus 4.5 compare to Qwen3.8 Max 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%. Qwen3.8 Max scores PaperBench: 93.0%, MRCR v2 (8-needle): 92.9%, GPQA: 92.6%, VideoMME w sub.: 90.4%, RealWorldQA: 88.0%.

What are the context window sizes for Claude Opus 4.5 and Qwen3.8 Max?

Claude Opus 4.5 supports 200K tokens and Qwen3.8 Max 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 Qwen3.8 Max?

Key differences include licensing (Proprietary vs Qwen3.8-Max License). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 4.5 and Qwen3.8 Max?

Claude Opus 4.5 is developed by Anthropic and Qwen3.8 Max is developed by Alibaba Cloud / Qwen Team.

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