Grok 4 Debuts As xAI’s Most Ambitious Chatbot Yet
Grok 4 , the latest large-language model from Elon Musk’s artificial-intelligence company xAI , went live late on the 10th of July. Billed as xAI’s “most powerful” system to date, the chatbot aims to outperform rival models from OpenAI, Google and Anthropic while attempting to recover from a string of recent hate-speech scandals. Releasing @Grok 4 from @xAI https://t.co/SYJbxJySSR — Elon Musk (@elonmusk) July 10, 2025 Early demonstrations showed markedly faster reasoning, expanded multimodal inputs and an optional “Heavy” variant that coordinates several agents to solve complex tasks. At the same time, regulators in Poland and Turkey have launched investigations into Grok’s content, underscoring the commercial and reputational stakes surrounding the launch. Launch and pricing xAI introduced two models, Grok 4 and the higher-spec Grok 4 Heavy, during a live-streamed event on 9 July. Access is being bundled into a new SuperGrok Heavy subscription costing...