Claude Opus 4 vs Qwen3 Coder Flash
Compare Claude Opus 4 by Anthropic against Qwen3 Coder Flash by Qwen, context windows of 200K vs 128K, tested across 53 shared challenges.
Our Verdict
Claude Opus 4
Qwen3 Coder FlashRunner-up
No community votes yet. On paper, Claude Opus 4 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
API pricing
Cost per 1M tokens
Claude Opus 4
Input
$15.00
Output
$75.00
Qwen3 Coder Flash
Input
$0.30
50× cheaper
Output
$1.50
50× cheaper
Qwen3 Coder Flash is cheaper on both — 50× input, 50× output
Writing DNA
Style Comparison
Similarity
63%
Claude Opus 4 uses 11.2x more emoji
Claude Opus 4
Qwen3 Coder Flash
64%Vocabulary60%
62wSentence Length92w
0.52Hedging0.60
4.4Bold6.1
9.1Lists6.2
0.11Emoji0.00
1.87Headings1.64
0.27Transitions0.18
Based on 16 + 22 text responses
Research
What we learned reading every model
FAQ
