Grok Code Fast 1 vs Gemini 2.5 Flash Preview (thinking)

Compare Grok Code Fast 1 by xAI against Gemini 2.5 Flash Preview (thinking) by Google AI, in 13 community votes, grok code fast 1 and gemini 2.5 flash preview (thinking) are closely matched, context windows of 256K vs 1.0M, tested across 20 shared challenges. Updated March 2026.

In 13 community votes, Grok Code Fast 1 and Gemini 2.5 Flash Preview (thinking) are closely matched. Grok Code Fast 1 leads in Web Design, while Gemini 2.5 Flash Preview (thinking) leads in Image Generation. Based on blind community voting from the Rival open dataset of 13+ human preference judgments for this pair.

Web Design: Grok Code Fast 1 wins 71% of votes
Image Generation: Gemini 2.5 Flash Preview (thinking) wins 100% of votes
FAQ