GPT-4.1 vs Claude Opus 4

Compare GPT-4.1 by OpenAI against Claude Opus 4 by Anthropic, in 3 community votes, claude opus 4 wins 100% of head-to-head duels, context windows of 1.0M vs 200K, tested across 28 shared challenges. Updated February 2026.

In 3 community votes, Claude Opus 4 wins 100% of head-to-head duels. Based on blind community voting from the RIVAL open dataset of 3+ human preference judgments for this pair.

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