Claude Sonnet 4.5 vs Qwen: Qwen3.5 Flash
Compare Claude Sonnet 4.5 by Anthropic against Qwen: Qwen3.5 Flash by Qwen, in 2 community votes, claude sonnet 4.5 and qwen: qwen3.5 flash are closely matched, context windows of 200K vs 1.0M, tested across 42 shared challenges. Updated April 2026.
Which is better, Claude Sonnet 4.5 or Qwen: Qwen3.5 Flash?
Claude Sonnet 4.5 and Qwen: Qwen3.5 Flash are closely matched based on 2 community votes. Claude Sonnet 4.5 costs $3/M input tokens vs $0.1/M for Qwen: Qwen3.5 Flash. Context windows: 200K vs 1000K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 4.5 and Qwen: Qwen3.5 Flash
Claude Sonnet 4.5 is made by anthropic while Qwen: Qwen3.5 Flash is from qwen. Claude Sonnet 4.5 has a 200K token context window compared to Qwen: Qwen3.5 Flash's 1000K. On pricing, Claude Sonnet 4.5 costs $3/M input tokens vs $0.1/M for Qwen: Qwen3.5 Flash. In community voting, In 2 community votes, Claude Sonnet 4.5 and Qwen: Qwen3.5 Flash are closely matched.
In 2 community votes, Claude Sonnet 4.5 and Qwen: Qwen3.5 Flash are closely matched. Claude Sonnet 4.5 and Qwen: Qwen3.5 Flash perform similarly across challenge categories. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Votes are tied. Qwen: Qwen3.5 Flash is newer and likely incorporates more recent improvements.
Qwen: Qwen3.5 Flash is 38x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Sonnet 4.5 uses 17.7x more emoji
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