ChatGPT-4o (March 2025) vs Claude Sonnet 4

Compare ChatGPT-4o (March 2025) by OpenAI against Claude Sonnet 4 by Anthropic, in 7 community votes, claude sonnet 4 wins 67% of head-to-head duels, context windows of 128K vs 200K, tested across 20 shared challenges. Updated February 2026.

In 7 community votes, Claude Sonnet 4 wins 67% of head-to-head duels. Claude Sonnet 4 leads in Image Generation. Based on blind community voting from the RIVAL open dataset of 7+ human preference judgments for this pair.

Image Generation: Claude Sonnet 4 wins 100% of votes
Web Design: ChatGPT-4o (March 2025) and Claude Sonnet 4 are tied
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