Elon Musk says Grok 4.5 is in private beta at SpaceX and Tesla
The new xAI model is said to use a 1.5T V9 foundation model and supplemental Cursor training data, but no public benchmark table is out.
By Ryan Merket · Published
Primary source: X
Why it matters
Grok 4.5 shows Musk using SpaceX and Tesla as internal proving grounds for xAI's next model, while the Cursor-data claim puts coding agents at the center of the bet.
The new xAI model is said to use a 1.5T V9 foundation model and supplemental Cursor training data, but no public benchmark table is out.
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