Grok 4强势发布！马斯克：它是在所有学科同时达到博士后水平的唯一存在

Core Viewpoint - The release of Grok 4 by xAI marks a significant advancement in AI capabilities, with claims of achieving postdoctoral-level proficiency across multiple disciplines, potentially leading to groundbreaking scientific discoveries within the year [2][8]. Group 1: Product Details - Grok 4 is available in two subscription versions: Grok 4 at $30/month and Grok 4 Heavy at $300/month, with the latter's annual fee exceeding 20,000 RMB [4][5]. - Grok 4 Heavy scored 44.4% in the Human Last Exam (HLE), outperforming the previous top model, Gemini 2.5 Pro, which scored 26.9% [5][8]. Group 2: Performance and Testing - Grok 4 excelled in the HLE test, which spans 100 disciplines and includes 2,500 doctoral-level questions, indicating a significant breakthrough in complex knowledge systems and deep thinking capabilities [8]. - The model has achieved top scores in various prestigious tests, including HMMT, USAMO, and GPQA, and received a perfect score in the AIME25 [13][14]. Group 3: Technological Advancements - The training volume from Grok 2 to Grok 4 increased by 100 times, with enhanced training efficiency through data selection and algorithm optimization [9]. - Grok 4's reasoning ability improved by 10 times compared to its predecessor, aided by the use of the world's top supercomputing clusters and increased reinforcement learning investments [9]. Group 4: Future Developments - xAI plans to release additional models, including a coding model in August, a multi-model agent in September, and a video generation model in October, focusing on enhancing visual capabilities [19][20].