Elon Musk’s xAI released Grok 4.7 on Monday afternoon, its best model to date, calling it "a notable improvement over Grok 4.6 at the same price and speed." The release comes after several apparent delays. Musk had walked the timeline back at least five times since late July: "four weeks out," then "a few weeks," then "3 to 4 weeks," then "10 days" on September 1, then "needs a few more days to cook" on September 11.