Gemini 2.5 Flash Preview 05-20 vs Grok 3

Compare Gemini 2.5 Flash Preview 05-20 by Google AI against Grok 3 by xAI, context windows of 1.0M vs 128K, tested across 10 shared challenges. Updated April 2026.

Which is better, Gemini 2.5 Flash Preview 05-20 or Grok 3?

Gemini 2.5 Flash Preview 05-20 and Grok 3 are both competitive models. Context windows: 1049K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between Gemini 2.5 Flash Preview 05-20 and Grok 3

Gemini 2.5 Flash Preview 05-20 is made by google while Grok 3 is from xai. Gemini 2.5 Flash Preview 05-20 has a 1049K token context window compared to Grok 3's 128K.

Our Verdict
Gemini 2.5 Flash Preview 05-20
Gemini 2.5 Flash Preview 05-20
Grok 3
Grok 3

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call
Writing DNA

Style Comparison

Similarity
99%

Grok 3 uses 3.9x more emoji

Gemini 2.5 Flash Preview 05-20
Grok 3
69%Vocabulary49%
10wSentence Length18w
0.26Hedging0.94
1.1Bold2.5
5.5Lists3.0
0.00Emoji0.04
0.00Headings0.65
0.00Transitions0.08
Based on 2 + 17 text responses
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Gemini 2.5 Flash Preview 05-20Grok 3

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