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Gemini 2.5 Pro vs Grok 4

Direct spec comparison of Gemini 2.5 Pro (from Google) and Grok 4 (from xAI). Want a 3- or 4-way comparison? Open the multi-model tool →

 
Google logoGemini 2.5 Pro

Google

xAI logoGrok 4

xAI

VendorGooglexAI
FamilyGeminiGrok
Release date2025-03-252025-07-09
Context window2,000,000 tokens256,000 tokens
Parameters
Modalitytext, vision, audio, videotext
Licenseproprietaryproprietary
Sourceproprietaryproprietary
DescriptionPredecessor to Gemini 3 Pro.
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