GPT-5 vs Grok Code Fast 1

Compare GPT-5 by OpenAI against Grok Code Fast 1 by xAI, in 175 community votes, gpt-5 wins 78% of head-to-head duels, context windows of 400K vs 256K, tested across 45 shared challenges. Updated March 2026.

In 175 community votes, GPT-5 wins 78% of head-to-head duels. GPT-5 leads in Reasoning, Image Generation, Web Design, while Grok Code Fast 1 leads in Conversation, Analysis. Based on blind community voting from the Rival open dataset of 175+ human preference judgments for this pair.

Reasoning: GPT-5 wins 67% of votes
Image Generation: GPT-5 wins 95% of votes
Web Design: GPT-5 wins 89% of votes
Conversation: Grok Code Fast 1 wins 69% of votes
Analysis: Grok Code Fast 1 wins 60% of votes
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