Elon Musk's AI company, xAI, released its latest flagship AI model, Grok 3, on Monday, along with new capabilities in the Grok app for iOS and the web.

The model was trained on 200,000 GPUs and beats its rivals in math, science, and coding benchmarks, Musk says. It appears to coincide with a price hike on X Premium+ accounts.

According to xAI’s blog, Grok 3 leverages Test-Time Compute at Scale (TTCS), a specific implementation of test-time scaling, to power its reasoning. This machine learning strategy enables the A.I. model to dynamically adjust computational resources, ensuring higher accuracy for complex queries while maintaining speed for simpler tasks.