GPT-4.5 vs Grok 3 Thinking

Compare GPT-4.5 by OpenAI against Grok 3 Thinking by xAI, in 10 community votes, gpt-4.5 wins 83% of head-to-head duels, context windows of 128K vs 128K, tested across 13 shared challenges. Updated February 2026.

In 10 community votes, GPT-4.5 wins 83% of head-to-head duels. GPT-4.5 leads in Web Design, Image Generation. Based on blind community voting from the RIVAL open dataset of 10+ human preference judgments for this pair.

Web Design: GPT-4.5 wins 100% of votes
Image Generation: GPT-4.5 wins 100% of votes
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