o1 vs Grok 3

Compare o1 by OpenAI against Grok 3 by xAI, in 1 community votes, grok 3 wins 100% of head-to-head duels, context windows of 128K vs 128K, tested across 28 shared challenges. Updated February 2026.

In 1 community votes, Grok 3 wins 100% of head-to-head duels. Based on blind community voting from the RIVAL open dataset of 1+ human preference judgments for this pair.

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