xAI Ships Grok 4.5 and Grok Build, a Cursor-Trained Assault on the Coding-Agent Market
xAI launched Grok 4.5 on July 8 — its strongest model, trained alongside Cursor and pitched by Musk as comparable to Opus 4.7 but faster and cheaper — shipping in Grok Build, in Cursor on all plans, and via the console at $2/$6 per million tokens.