Model Comparison

Claude Opus 5 vs Qwen3.8 MaxWhich is better in 2026?

Claude Opus 5 significantly outperforms across most benchmarks.

Verdict: Claude Opus 5 vs Qwen3.8 Max — which is better?

Claude Opus 5 (by Anthropic) and Qwen3.8 Max (by Alibaba Cloud / Qwen Team) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Claude Opus 5 outperforms in 2 benchmarks (DeepSWE 1.1, Humanity's Last Exam), while Qwen3.8 Max is better at 0 benchmarks. Claude Opus 5 significantly outperforms across most benchmarks.

Choose Claude Opus 5 if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks

Choose Qwen3.8 Max if…

  • you want the most recent training data — it shipped Aug 2026

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Claude Opus 5 outperforms in 2 benchmarks (DeepSWE 1.1, Humanity's Last Exam), while Qwen3.8 Max is better at 0 benchmarks.

Claude Opus 5 significantly outperforms across most benchmarks.

Mon Aug 03 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Opus 5 specifies input context (1,000,000 tokens). Only Claude Opus 5 specifies output context (128,000 tokens).

Anthropic
Claude Opus 5
Input1,000,000 tokens
Output128,000 tokens
Alibaba Cloud / Qwen Team
Qwen3.8 Max
Input- tokens
Output- tokens
Mon Aug 03 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Opus 5 and Qwen3.8 Max support multimodal inputs.

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

Claude Opus 5

Text
Images
Audio
Video

Qwen3.8 Max

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Opus 5

Proprietary

Closed source

Qwen3.8 Max

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 5 was released on 2026-07-24, while Qwen3.8 Max was released on 2026-08-02.

Qwen3.8 Max is 0 month newer than Claude Opus 5.

Claude Opus 5

Jul 24, 2026

1 weeks ago

Qwen3.8 Max

Aug 2, 2026

1 days ago

1w 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

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Larger context window (1,000,000 tokens)
Higher DeepSWE 1.1 score (68.8% vs 56.6%)
Higher Humanity's Last Exam score (64.7% vs 43.6%)
Alibaba Cloud / Qwen Team

Qwen3.8 Max

View details

Alibaba Cloud / Qwen Team

No standout differentiators in the data we have for this pair.

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Opus 5 and Qwen3.8 Max side-by-side, then vote on the output you prefer.

Claude Opus 5
✓ Preferred
Qwen3.8 Max
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Opus 5
Alibaba Cloud / Qwen Team
Qwen3.8 Max

FAQ

Common questions about Claude Opus 5 vs Qwen3.8 Max.

Which is better, Claude Opus 5 or Qwen3.8 Max?

Claude Opus 5 significantly outperforms across most benchmarks. Claude Opus 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 5 compare to Qwen3.8 Max in benchmarks?

Claude Opus 5 scores BrowseComp: 90.8%, BioMysteryBench: 90.1%, OSWorld 2.0: 70.6%, DeepSWE 1.1: 68.8%, Humanity's Last Exam: 64.7%. Qwen3.8 Max scores PaperBench: 93.0%, GPQA: 92.6%, VideoMME w sub.: 90.4%, RealWorldQA: 88.0%, Terminal-Bench 2.1: 86.6%.

What are the context window sizes for Claude Opus 5 and Qwen3.8 Max?

Claude Opus 5 supports 1.0M 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.

Who makes Claude Opus 5 and Qwen3.8 Max?

Claude Opus 5 is developed by Anthropic and Qwen3.8 Max is developed by Alibaba Cloud / Qwen Team.

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