GPT-5 Pro vs Claude Opus 4.1

Compare GPT-5 Pro by OpenAI against Claude Opus 4.1 by Anthropic, in 9 community votes, gpt-5 pro wins 56% of head-to-head duels, context windows of 400K vs 200K, tested across 23 shared challenges. Updated February 2026.

In 9 community votes, GPT-5 Pro wins 56% of head-to-head duels. GPT-5 Pro has the edge overall, but performance varies by task type. Based on blind community voting from the RIVAL open dataset of 9+ human preference judgments for this pair.

Reasoning: GPT-5 Pro and Claude Opus 4.1 are tied
Analysis: GPT-5 Pro and Claude Opus 4.1 are tied
Conversation: GPT-5 Pro and Claude Opus 4.1 are tied
Image Generation: GPT-5 Pro and Claude Opus 4.1 are tied
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