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answer: direct
beat: ai-technology
source: 1 article · updated: July 8, 2026
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What is Grok 4.5's connection to Cursor?

xAI co-trained Grok 4.5 using developer session data from Cursor, the coding assistant SpaceX agreed to acquire for $60 billion weeks earlier. Per Axios, Cursor CEO Michael Truell's team contributed trillions of tokens of real code edits, debugging traces, and agent interactions from the Cursor platform.

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Grok 4.5 Ships, xAI Calls It Opus-Class at a Third of the Price

xAI's Grok 4.5 prices coding at $2/$6 per million tokens, undercutting the $5/$25 Musk quoted for Opus 4.7 — but the AA Index ranks it behind Opus 4.8.

Crashtech Editorial July 8, 2026 How AI Actually Works

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