Grok 4意外提前曝光，xAI巨额融资700亿，马斯克宣布“重写人类知识库”

Core Viewpoint - xAI, led by Elon Musk, has revealed the upcoming Grok 4 and Grok 4 Code models, skipping the planned Grok 3.5 version, indicating a strategy of "extreme iteration" to deliver significant updates [3][4][12]. Group 1: Grok 4 Features and Ambitions - Grok 4 is positioned as the "latest and most powerful flagship model," claiming unparalleled performance in natural language, mathematics, and reasoning [6]. - The model currently supports text modalities, with visual and image generation features expected soon, including function calls, structured outputs, and deep reasoning capabilities [7]. - Grok 4 has a context window of 130,000 tokens, which is smaller than many leading models, suggesting a focus on optimizing reasoning speed and real-time usability rather than handling long texts [8]. - The model excels in enterprise applications such as data extraction, code generation, and text summarization, with knowledge in finance, healthcare, law, and science [10]. - Grok 4 Code is specifically designed for programming, allowing integration into code editors like Cursor [11]. - Musk's ambition includes rewriting the human knowledge base using Grok 4's reasoning capabilities to correct perceived errors and fill knowledge gaps [14]. Group 2: Funding and Infrastructure - xAI has completed a significant funding round of $10 billion (approximately 71.6 billion RMB), following a previous $6 billion Series C round just over six months ago [2][25]. - The latest funding round's participants include major firms such as Valor Equity Partners, Vy Capital, Andreessen Horowitz, Sequoia Capital, and Fidelity Management, utilizing a combination of equity and debt [26]. - With this funding, xAI is poised to expand its computational capabilities, having already established a supercomputing center in Memphis, Tennessee, with 200,000 GPUs and plans for a new facility with 1 million GPUs [28][29]. - The scale of AI training workloads poses unique challenges to the power grid, with traditional designs not accounting for the rapid load fluctuations that can lead to blackouts [30][32]. - To address power consumption issues, xAI is implementing Tesla's Megapack energy storage system and collaborating with utility companies to establish industry standards [35][37].