Claude 3.7 Thinking Sonnet vs OpenAI o3
Compare Claude 3.7 Thinking Sonnet by Anthropic against OpenAI o3 by OpenAI, in 41 community votes, claude 3.7 thinking sonnet wins 79% of head-to-head duels, tested across 54 shared challenges. Updated May 2026.
Which is better, Claude 3.7 Thinking Sonnet or OpenAI o3?
Claude 3.7 Thinking Sonnet is the better choice overall, winning 79% of 41 blind community votes on Rival. Claude 3.7 Thinking Sonnet costs $6/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Claude 3.7 Thinking Sonnet and OpenAI o3
Claude 3.7 Thinking Sonnet is made by anthropic while OpenAI o3 is from openai. On pricing, Claude 3.7 Thinking Sonnet costs $6/M input tokens vs $10/M for OpenAI o3. In community voting, In 41 community votes, Claude 3.7 Thinking Sonnet wins 79% of head-to-head duels.
In 41 community votes, Claude 3.7 Thinking Sonnet wins 79% of head-to-head duels. Claude 3.7 Thinking Sonnet leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the Rival open dataset of 41+ human preference judgments for this pair.
Per 1M tokens
Claude 3.7 Thinking Sonnet is cheaper on both — 1.7× input, 1.3× output
Pick Claude 3.7 Thinking Sonnet. In 41 blind votes, Claude 3.7 Thinking Sonnet wins 79% of the time. That's not luck.
Claude 3.7 Thinking Sonnet particularly excels in Conversation, Image Generation, Reasoning.
Style Comparison
Claude 3.7 Thinking Sonnet uses 4.8x more headings
