xAI’s Grok 4 achieves the highest Artificial Intelligence Index score, outperforming OpenAI, Google Gemini 2.5 Pro, and Anthropic Claude 4 Opus in extensive benchmarks. He emphasizes Grok 4’s excellence in areas like coding and advanced reasoning tasks, despite some concerns regarding its speed and pricing. Cochrane reflects on the significant praise Grok 4 has received from developers, noting its progression from Grok 3, which was competitive but not a frontrunner until now. He mentions Grok 4’s pricing structure, which is comparable to Claude 4 but more expensive than Gemini 2. Cochrane then delves into further news, including xAI’s new $300 monthly AI subscription plan, which he finds to be a significant investment compared to his OpenAI Pro subscription.