Language modelIn production

Grok 4.5

xAI · USA · 2026

xAI's July 2026 frontier model, trained on the Colossus supercluster with real-time X data.

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8.6/10

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Released July 8, 2026, Grok 4.5 is xAI's answer to the mid-year frontier wave, trained on the massive Colossus GPU cluster. It emphasizes reasoning, coding and real-time knowledge through deep integration with X, and ships across the Grok apps, API and Tesla vehicles.

#frontier#real-time data#Colossus#reasoning

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