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Grok 4.5 enters private beta at SpaceX and Tesla

Vaibhav Sisinty avatar
Vaibhav Sisinty
@VaibhavSisinty

Elon just shared that Grok 4.5 is now in private beta at SpaceX and Tesla. Built on a 1.5 trillion parameter model. Early tests show it competing with Claude Opus. SpaceX plans to release completely new trained-from-scratch models every month for the rest of 2026. The AI race

Grok 4.5 enters private beta at SpaceX and Tesla β€” AIBriefs