Core Viewpoint - The article discusses the emerging competition in the AI browser market, highlighting the launch of Perplexity's AI browser, Comet, and the anticipated entry of OpenAI into the same space, indicating a significant shift in how users interact with the internet [2][4][33]. Group 1: Market Dynamics - The AI browser market is becoming increasingly crowded with players like Google Chrome, Apple Safari, and new entrants such as Dia and FellouAI browsers [5][6][36]. - Google Chrome currently holds a dominant position with a market share of approximately 66% [6]. - Perplexity's decision to enter the browser market stems from a rejection by Google to set its search engine as the default, prompting the need to create its own browser to connect with users [26][29]. Group 2: Comet's Features and User Experience - Comet is designed as a super intelligent assistant, integrating deeply with user tasks across browsing, searching, and entertainment [8][11]. - The browser can automatically recognize content being viewed and allows users to ask questions without needing to open new windows or copy text [18][20]. - While Comet performs well with simple tasks, it struggles with more complex requests, requiring extensive permissions from users [21][22]. Group 3: Competitive Landscape - OpenAI is also developing a browser to compete directly with Google Chrome, aiming to enhance data collection for model training and personalization [34]. - New entrants like Dia and FellouAI are positioning themselves as "AI-native" browsers, attempting to redefine user experience and bypass traditional browser functionalities [36][37]. - Google is actively enhancing Chrome with AI features to maintain its competitive edge, despite the emergence of new players [39]. Group 4: User Engagement and Growth Potential - Perplexity reported a search query volume of 780 million in May, with a month-over-month growth rate exceeding 20%, indicating a strong user base that can be leveraged for Comet [30][31]. - The competition for the next-generation "super entry point" in digital interaction is intensifying, with various companies vying for user attention in the browser space [42].

Core Viewpoint - The release of Grok-4 marks a significant advancement in AI capabilities, achieving over 50% accuracy in various tests, surpassing previous models and demonstrating superior intelligence compared to human performance [1][6][4]. Group 1: Performance Metrics - Grok-4 Heavy achieved a score of 44.4%, an increase of nearly 18 percentage points compared to Gemini-2.5-Pro [2]. - With training and tool integration during testing, Grok-4 can reach a score of 50.7% [3]. - In various assessments, Grok-4 scored 88.9% on GPQA, 100% on AIME25, 79.4% on LCB, 96.7% on HMMT25, and 61.9% on USAMO25 [11]. Group 2: Training and Development - Grok-4's training volume is 100 times that of Grok-2 and 10 times that of Grok-3, utilizing a 200,000-card computing cluster [23]. - The model emphasizes the integration of tools during post-training, which enhances performance and efficiency [26][27]. - The incorporation of tools allows Grok-4 to flexibly complete complex tasks, improving its overall intelligence [30]. Group 3: Demonstrations and Applications - Grok-4 demonstrated strong reasoning abilities by predicting MLB World Series win probabilities, assigning a 21.6% chance to the Dodgers [31]. - It showcased visual understanding by simulating gravitational wave collisions and generating realistic waveforms [35]. - In programming tests, Grok-4 nearly achieved full marks and is expected to release a specialized fast and intelligent programming model [37]. Group 4: Future Plans and Integration - Future developments include a programming model, multi-modal agents, and video generation models [46]. - Grok is expected to be integrated into Tesla's latest firmware, enhancing the interaction between drivers and vehicles [58]. - The Grok voice assistant will also be featured in the Optimus humanoid robot, serving as its brain [60].

来源：环球网 【环球网科技综合报道】7月10日消息，由英伟达投资支持的Perplexity AI近日推出一款名为Comet的AI 驱动网络浏览器，这家初创公司正积极挑战Alphabet旗下谷歌在浏览器领域的主导地位。 据了解，Comet能够在保持完整上下文的前提下执行完整工作流程，让研究如同对话般自然，使分析过 程更易于操作。例如，用户可借助Comet比较不同的保险计划，也能通过它深入理解某项技术以辅助投 资决策。 值得注意的是，Perplexity强调，用户在Comet中的数据仅存储在本地浏览器，绝不会被用于模型训练。 关于使用权限，从7月9日起，Comet将向Perplexity Max订阅用户开放。该公司表示，夏季将逐步向候补 名单用户开放仅限邀请的访问权限，新用户还将获得一定数量的邀请名额可与他人分享。 近年来，AI在搜索及浏览器领域的应用持续推进。去年，微软支持的OpenAI为ChatGPT添加了搜索引 擎功能，且近期已向所有用户开放该服务；谷歌也于去年推出名为"AI概览"的AI驱动搜索功能。而 OpenAI也将在近期推出自家AI浏览器。（纯钧） Perplexity公司在公开介绍中表示，Comet ...

RT Artificial Analysis (@ArtificialAnlys)xAI gave us early access to Grok 4 - and the results are in. Grok 4 is now the leading AI model.We have run our full suite of benchmarks and Grok 4 achieves an Artificial Analysis Intelligence Index of 73, ahead of OpenAI o3 at 70, Google Gemini 2.5 Pro at 70, Anthropic Claude 4 Opus at 64 and DeepSeek R1 0528 at 68. Full results breakdown below.This is the first time that @elonmusk's @xai has the lead the AI frontier. Grok 3 scored competitively with the latest mode ...

Elon Musk's A. I. has released its newest A.I. model, Grok four I believe as the 4 a. m.UK time. So about 3 hours, then live for 3 hours. What can we expect when it comes to this new iteration.Okay. Again, very high expectations on this. Obviously, with expectations stoked up by Mr.. Musk himself and various employees on the platform. I think one of his employees was quoted as saying the world is not ready for this model. There's also been some data was leaked ahead of the official launch on various benchma ...

知情人士称，这款新模型具备与o3 mini相似的推理能力，将在Azure、Hugging Face和其他大型云服务 商平台上同步发布。 不同于OpenAI以往的封闭权重模型，开放权重意味着企业和政府机构可以自主运行该模型。 或将允许企业定制模型 "开放权重" 模型是介于开源和闭源方法之间的一种中间形态。 权重是AI模型学习和建立连接的方式——某些特征或连接会被赋予更高的权重，以强化特定信息。 开放权重模型意味着其权重是公开可用的。这表示用户可以查看这些权重并进行修改，而无需用新数据 重新训练模型。开放权重模型通常能降低企业的使用成本，并允许他们对模型进行定制。 但开放权重模型与开源模型并不相同。开源模型通常允许你查看其源代码组成，有时还包括其训练和权 重分配方式。 考虑到OpenAI一向不披露ChatGPT训练数据的做法，新模型的最终"开放"程度将取决于该模型附带的许 可证，以及OpenAI是否愿意提供对该模型代码和训练细节的完全访问权限。 微软与OpenAI之间复杂的关系即将迎来新的转折。 媒体报道称，OpenAI计划最早于下周发布一款"开放权重"AI语言模型，这将是公司自2019年GPT-2以来 首次推出 ...

RT Hans C Nelson 🗽 (@HansCNelson)HOLY COW!!!@xai just dropped a bombshell on every major AI lab.@OpenAI, @GoogleDeepMind, & @AnthropicAI are cooked@elonmusk is YOLOing all in on the bitter lesson, and no one can keep up(bitter lesson means that if you want smarter AI, you need way bigger compute and way more/better data)They obvs have the computeQ: So how get more/better data?A: Use your massive balls, excuse me, I meant clusters, to solve lots of problems w/ provable solutions-Use massive compute to try an ...

据The Verge：OpenAI的开源语言模型即将发布。 ...

OpenAI的开源语言模型即将发布。（The Verge） ...

Grok4智能指数超OpenAI的o3 金十数据7月10日讯，根据Artificial Analysis公布的跑分结果，Grok4的智能指数为73，作为对比， OpenAI的o3模型为70，谷歌Gemini 2.5 Pro模型为70，DeepseekR1-0528模型为68分，Anthropic Claude 4 Opus模型为64分。 ...