Claude Sonnet 4.5 vs Qwen3 Coder Plus

Compare Claude Sonnet 4.5 by Anthropic against Qwen3 Coder Plus by Qwen, in 51 community votes, claude sonnet 4.5 wins 85% of head-to-head duels, context windows of 200K vs 128K, tested across 43 shared challenges. Updated February 2026.

In 51 community votes, Claude Sonnet 4.5 wins 85% of head-to-head duels. Claude Sonnet 4.5 leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the RIVAL open dataset of 51+ human preference judgments for this pair.