Core Viewpoint - xAI has launched a new reasoning model named "Grok4Fast," which reportedly outperforms other models like OpenAI's o3-search and Google's Gemini2.5Pro in search-related tasks due to its superior reasoning efficiency and intelligence density [1] Group 1: Model Performance - Grok4Fast can switch between cost-effective intelligent models and deeper reasoning models, and it can also provide responses through its "non-reasoning model" [1] - The model's performance in benchmark tests is comparable to Grok4, while the average number of thinking vocabulary used has decreased by 40% [1] Group 2: Funding and Valuation - xAI is reportedly discussing raising $10 billion at a valuation of $200 billion, although Elon Musk stated that xAI is not currently engaged in any fundraising activities [1] - Musk has previously indicated that Tesla could invest in xAI [1]