<ul data-eligibleForWebStory="false">Elon Musk's xAI introduces Grok 4, claiming to be the world's most powerful AI model.Grok 4 excels in benchmarks, facing controversies but showing impressive reasoning capabilities.The model offers a premium subscription with features like multi-agent reasoning and Tesla integration.Despite the high performance, questions arise about content moderation, trust, and steep pricing.Grok 4's launch signifies a shift in the AI competitive landscape with implications for the industry.