The AI Daily Brief · Wednesday, July 8, 2026
Elon Musk confirmed that SpaceX AI's Grock 4.5 model is set to be released today, following positive feedback from its beta test program. Musk stated that the model is faster, more token-efficient, and lower cost. This follows an announcement from Cursor CEO Michael Troull about their own AI model trained on SpaceX AI infrastructure, which boasts 1.5 trillion parameters.
“Elon Musk confirmed the rumors and said that yes, indeed, Grock 4.5 would be coming today.”
“based on strong positive feedback from customers in our beta test program, SpaceX AI will make Grock 4.5 available to the public tomorrow.”
“It is an open class model he wrote, but faster, more token efficient, and lower cost.”