Claude 3 Opus vs Qwen3 Coder Flash

Compare Claude 3 Opus by Anthropic against Qwen3 Coder Flash by Qwen, context windows of 200K vs 128K, tested across 12 shared challenges. Updated April 2026.

Which is better, Claude 3 Opus or Qwen3 Coder Flash?

Claude 3 Opus and Qwen3 Coder Flash are both competitive models. Claude 3 Opus costs $15/M input tokens vs $0.3/M for Qwen3 Coder Flash. Context windows: 200K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Claude 3 Opus and Qwen3 Coder Flash

Claude 3 Opus is made by anthropic while Qwen3 Coder Flash is from qwen. Claude 3 Opus has a 200K token context window compared to Qwen3 Coder Flash's 128K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0.3/M for Qwen3 Coder Flash.

Our Verdict
Claude 3 Opus
Claude 3 Opus
Qwen3 Coder Flash
Qwen3 Coder FlashRunner-up

No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window, major provider backing.

Qwen3 Coder Flash is 50x cheaper per token — worth considering if cost matters.

Too close to call
Writing DNA

Style Comparison

Similarity
84%

Qwen3 Coder Flash uses 605.7x more bold

Claude 3 Opus
Qwen3 Coder Flash
54%Vocabulary60%
14wSentence Length92w
0.48Hedging0.60
0.0Bold6.1
3.0Lists6.2
0.00Emoji0.00
0.00Headings1.64
0.06Transitions0.18
Based on 3 + 22 text responses
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Claude 3 OpusQwen3 Coder Flash

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