Grok 4: Inside Elon Musk’s Most Powerful (and Controversial) AI Chatbot Yet
Grok 4 was unveiled on July 9, 2025 in a live stream on X, with Elon Musk calling it “the smartest AI in the world” and claiming it is “postgrad-level in every subject.” Grok 4 can use tools natively, perform autonomous web searches, run Python code, and access real-time information, removing the fixed knowledge cutoff. Grok 4 is multimodal and includes a voice assistant named Eve, but Musk admitted its vision and audio capabilities are still a work in progress and that it is “partially blind” on images. Training used the Colossus 200,000-GPU supercluster, with reinforcement learning at a scale
