Claude Sonnet 4 vs GPT-5 Nano
Compare Claude Sonnet 4 by Anthropic against GPT-5 Nano by OpenAI, in 20 community votes, claude sonnet 4 wins 100% of head-to-head duels, tested across 54 shared challenges. Updated May 2026.
Which is better, Claude Sonnet 4 or GPT-5 Nano?
Claude Sonnet 4 is the better choice overall, winning 100% of 20 blind community votes on Rival. Compare their real outputs side by side below.
Key Differences Between Claude Sonnet 4 and GPT-5 Nano
Claude Sonnet 4 is made by anthropic while GPT-5 Nano is from openai. In community voting, In 20 community votes, Claude Sonnet 4 wins 100% of head-to-head duels.
In 20 community votes, Claude Sonnet 4 wins 100% of head-to-head duels. Claude Sonnet 4 leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the Rival open dataset of 20+ human preference judgments for this pair.
Per 1M tokens
Pick Claude Sonnet 4. In 20 blind votes, Claude Sonnet 4 wins 100% of the time. That's not luck.
Claude Sonnet 4 particularly excels in Web Design, Image Generation, Reasoning.
Style Comparison
Claude Sonnet 4 uses 503.7x more bold
