xAI AI Updates: July 18, 2026

1. Elon Musk confirms Grok 4.6 is in the pipeline

xAI. Elon Musk confirmed that Grok 4.6 is in development in a brief reply on X, just two days after xAI released Grok 4.5. Musk provided no launch date or feature details, though xAI has been shipping model updates at a rapid cadence, suggesting the next version could arrive within days. The current baseline, Grok 4.5, runs at roughly 80 tokens per second and scored 29.0% on the SWE Marathon benchmark on a 1.5 trillion-parameter V9 foundation. Source