xAI is promoting Grok 3 as the best model on the market, claiming it surpassed competitors from OpenAI, Google, Anthropic, and DeepSeek on key benchmarks. Grok 3 did perform well under the codename "chocolate" in Chatbot Arena, which pits chatbots against each other in blind performance tests.

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.