Claude 3 Opus vs Qwen: Qwen3.5 Plus 2026-02-15

Compare Claude 3 Opus by Anthropic against Qwen: Qwen3.5 Plus 2026-02-15 by Qwen, context windows of 200K vs 1.0M, tested across 12 shared challenges. Updated April 2026.

Which is better, Claude 3 Opus or Qwen: Qwen3.5 Plus 2026-02-15?

Claude 3 Opus and Qwen: Qwen3.5 Plus 2026-02-15 are both competitive models. Claude 3 Opus costs $15/M input tokens vs $0.4/M for Qwen: Qwen3.5 Plus 2026-02-15. Context windows: 200K vs 1000K tokens. Compare their real outputs side by side below.

Key Differences Between Claude 3 Opus and Qwen: Qwen3.5 Plus 2026-02-15

Claude 3 Opus is made by anthropic while Qwen: Qwen3.5 Plus 2026-02-15 is from qwen. Claude 3 Opus has a 200K token context window compared to Qwen: Qwen3.5 Plus 2026-02-15's 1000K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0.4/M for Qwen: Qwen3.5 Plus 2026-02-15.

Our Verdict
Claude 3 Opus
Claude 3 Opus
Qwen: Qwen3.5 Plus 2026-02-15
Qwen: Qwen3.5 Plus 2026-02-15

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Qwen: Qwen3.5 Plus 2026-02-15 is 31x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
94%

Qwen: Qwen3.5 Plus 2026-02-15 uses 533.6x more bold

Claude 3 Opus
Qwen: Qwen3.5 Plus 2026-02-15
54%Vocabulary54%
14wSentence Length18w
0.48Hedging0.51
0.0Bold5.3
3.0Lists2.9
0.00Emoji0.10
0.00Headings0.75
0.06Transitions0.09
Based on 3 + 23 text responses
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Claude 3 OpusQwen: Qwen3.5 Plus 2026-02-15

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