Claude 3.7 Thinking Sonnet vs o3 Mini

Compare Claude 3.7 Thinking Sonnet by Anthropic against o3 Mini by OpenAI, in 6 community votes, claude 3.7 thinking sonnet wins 75% of head-to-head duels, context windows of 200K vs 64K, tested across 39 shared challenges. Updated March 2026.

In 6 community votes, Claude 3.7 Thinking Sonnet wins 75% of head-to-head duels. Claude 3.7 Thinking Sonnet leads in Image Generation. Based on blind community voting from the Rival open dataset of 6+ human preference judgments for this pair.

Image Generation: Claude 3.7 Thinking Sonnet wins 100% of votes
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