Grok 4, launched by xAI on July 9, 2025, stands out in the crowded field of AI chatbots by delivering sharper reasoning and real-time information. Unlike earlier models, it can think through multiple ideas simultaneously, what xAI calls “parallel test time compute,” allowing it to reason more deeply on tricky questions. In side-by-side tests, Grok 4 even aced difficult math and broader academic challenges that most chatbots would struggle with x.ai.
What truly sets Grok 4 apart is its ability to tap into live search from platforms like X and the web, so its replies should feel more current and connected. Plus, there’s a premium “Heavy” version offering even more depth, albeit at a higher cost.
