Elon Musk (@elonmusk) on X

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@elonmusk

Elon Musk

X

@elonmusk

Based on strong positive feedback from customers in our beta test program, @spacexai will make Grok 4.5 available to the public tomorrow. It is an Opus-class model, but faster, more token-efficient and lower cost.

6:21 AM · Jul 8, 2026

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