年费最高超2万元！20万GPU训出Grok 4 马斯克的“野心”被质疑 木头姐：20万亿美元蛋糕正被xAI和OpenAI等瓜分

Core Insights - The launch of Grok 4 by xAI, led by Elon Musk, positions it as the world's most advanced AI model, surpassing PhD-level performance across all major disciplines [1][2] - Grok 4's subscription fee is notably high, reaching up to $3,000 per year, which raises questions about accessibility [1][9] - The model has achieved a total score of 73 in benchmark tests, outperforming competitors like o3, Gemini 2.5 Pro, and Claude 4 Opus [1][2] Performance Metrics - Grok 4 scored 25.4% in the "Humanity's Last Exam" without tools, and 38.6% with tools, while Grok 4 Heavy achieved 44.4%, nearly double that of Gemini 2.5 Pro [6][8] - In the GPQA test, Grok 4 series scored close to 90%, and Grok 4 Heavy achieved a perfect score in the AIME25 math competition [8] - Grok 4's performance in the ARC-AGI test was also notable, scoring 15.9%, significantly higher than its closest competitor [8] Future Aspirations - Musk envisions Grok 4 as a tool to "rewrite the human knowledge base," aiming to correct misinformation and enhance AI training with a "clean and accurate" knowledge repository [14][17] - xAI plans to release additional models, including code models, multimodal agents, and video generation models in the future [12] Financial Backing and Market Position - xAI has raised over $20 billion in total funding, with a recent $10 billion round completed just before the Grok 4 launch [17] - The company has established a massive AI training facility, "Colossus," with 200,000 GPUs, costing around $7 billion, and plans to build a new facility with 1 million GPUs [17] - Industry experts, including Cathie Wood, believe xAI has the potential to excel in the AI market, leveraging its distribution advantages through platforms like Starlink [18]