01. 创业一年后，李飞飞如何阐述 World Labs 的愿景？ 成立一年的World Labs 发布过什么进展？World Labs 的愿景有变化吗？空间智能终于有望解锁了？... 02 . 为什么没有空间智能的 AI 是不完整的？ 本文来自PRO会员通讯内容，文末关注「机器之心PRO会员」，查看更多专题解读。 在近期由 a16z 普通合伙人 Erik Torenberg 主持的一场访谈中，李飞飞和 World Labs 早期投资者 Martin Casado 围绕「世界模型」和「空间智能」的话题探讨了她对 AI 技术的理解，并在创业 项目 启动一年后重新 介绍了 World Labs 的任务和愿景。 目录 2、李飞飞指出当前语言模型在描述和理解三维物理世界方面存在明显的局限性，空间智能则超越语言模型成 为智能的关键组件，是世界模型理解、重建和生成物理世界的核心能力。 ① 语言虽然是思想和信息的强大编码，但对 3D 物理世界而言是「有损的编码方式」，无法有效描述和操作三 维空间。而空间智能代表着更为古老和根本的智能形式，是 AI 的关键组成部分。 3、在这一认知框架下，World Labs 试图构建能理解 ...

Group 1 - Microsoft launched Bing Video Creator, supported by OpenAI's Sora technology, allowing users to generate various types of videos through natural language [1] - The service is free and offers two generation modes: quick and standard, with an initial allowance of 10 quick generation opportunities, producing videos of 5 seconds in length [1] - Built-in safety measures are included to prevent misuse, and each generated video is tagged with content credentials and traceability information; currently, it is not available in the national region [1] Group 2 - Manus introduced a new slide feature that can generate 8 professional PPT slides in 10 minutes, receiving positive feedback [2] - The testing process showed that Manus can automatically search for information, plan structure, and generate content, supporting instant modifications and various export formats, although there are issues with incomplete page displays [2] - Compared to Genspark, Manus is faster (10 minutes vs. 20 minutes) and more powerful, being rated as the best PPT creation tool currently [2] Group 3 - Character.ai launched AvatarFX, enabling static images to speak, sing, and interact with users [3] - AvatarFX is based on the DiT architecture, featuring high fidelity and strong temporal consistency, maintaining stability even in complex scenarios with multiple characters and long sequences [3] - Character.ai also introduced several AI creation features, including immersive narrative experiences and animated chat, while facing an antitrust investigation regarding Google's acquisition of the platform [3] Group 4 - Fellou 2.0 was officially released, functioning as an intelligent agent similar to "Jarvis," enabling 24/7 batch production of AI tasks [4][5] - The new version boasts improved speed (1.2-1.5 times faster), enhanced capabilities (supporting diverse delivery), and increased reliability (success rate improved from 31% to 80%) [5] - Built on the new Eko 2.0 architecture, it supports parallel processing of multiple tasks and plans to release a Windows version while continuously optimizing user experience and model intelligence [5] Group 5 - YouWare is an "ambient programming" platform designed for creators in the AI era, allowing non-programmers to convert ideas into web pages and share them online [6] - The platform's core advantage lies in its "what you see is what you think" experience, where users describe their ideas, and AI generates code for immediate visualization and sharing [6] - YouWare is supported by self-developed AI Agent and Sandbox technology, creating a community similar to "Instagram" and implementing a "Knot" reward mechanism to encourage quality content creation [6] Group 6 - Zhiyuan Research Institute open-sourced the lightweight long video understanding model Video-XL-2, capable of efficiently processing video inputs of up to ten thousand frames on a single card [7] - The model consists of a visual encoder, dynamic token synthesis module, and a large language model, employing a four-stage progressive training method and introducing a segmented pre-filling strategy [7] - Video-XL-2 outperforms all lightweight open-source models on mainstream evaluation benchmarks, encoding 2048 frames of video in just 12 seconds, applicable in film content analysis and anomaly behavior monitoring [7] Group 7 - Salesforce, the leading global CRM platform, acquired the AI Agent platform Moonhub, with the entire team joining Salesforce to develop the Agentforce platform [8] - Salesforce CEO Marc Benioff is optimistic about the development of intelligent agents, aiming to create one billion agents through Agentforce by the end of 2025, with 3,000 paying customers already onboard [8] - Moonhub specializes in recruiting intelligent agents, autonomously searching and screening candidates, complementing Salesforce's existing HR intelligent agent functions and enhancing its influence in the intelligent agent sector [8] Group 8 - Li Feifei's World Labs open-sourced the Forge renderer, enabling real-time rendering of AI-generated 3D worlds on ordinary devices [10] - Forge is a web-based 3D Gaussian splat (3DGS) renderer, seamlessly integrating with three.js, supporting multiple splat objects, cameras, and real-time animation/editing [10] - The technology's key lies in an efficient painter's algorithm for sorting issues and a programmable data pipeline, allowing developers to handle AI-generated 3D worlds as easily as processing triangular meshes [10] Group 9 - The report discusses the model selection guide by Kapasi, recommending GPT-4o for simple daily questions and switching to o3 for complex tasks [11] - Specific usage scenarios include 40% for simple daily questions with 4o, 40% for complex important issues with o3, and using GPT-4.1 for code refinement [11] - The core principle for model selection is "either-or": first determine if the task is important and if one is willing to wait (choose o3) or if it is unimportant and needs quick understanding (choose 4o) [11] Group 10 - ChatGPT's memory system consists of two main components: saving memories and chat history, which is further divided into current session history, dialogue history, and user insights [12] - The technical implementation of memory saving is achieved through bio tools, while dialogue history utilizes vector space to establish multi-layer indexing [12] - The user experience is significantly enhanced by the memory mechanism, particularly the user insight system, which may contribute over 80% to ChatGPT's improved understanding, transforming it from "you tell me" to "I can see" [12]

Core Viewpoint - World Labs, co-founded by Fei-Fei Li, has open-sourced a core technology called Forge, a real-time 3D Gaussian Splatting renderer that operates seamlessly across various devices, including desktops, low-power mobile devices, and XR [1][6]. Group 1: Technology Overview - Forge is a web-based 3D Gaussian Splatting renderer that integrates with three.js, enabling fully dynamic and programmable Gaussian splatting [2]. - The underlying design of Forge is optimized for GPU, serving a role similar to traditional 3D graphics components known as "shaders" [3]. - The technology allows developers to handle AI-generated 3D worlds as easily as manipulating triangle meshes, according to Ben Mildenhall, co-founder of World Labs [5]. Group 2: Features and Capabilities - Forge requires minimal code to start and run, supporting multiple splat objects, cameras, and real-time animations/edits [4]. - It is designed as a programmable 3D Gaussian Splatting engine, providing unprecedented control over the generation, animation, and rendering of 3D Gaussian splats [8]. - The renderer employs a painter's algorithm for sorting splats, which is a core aspect of its design [13]. Group 3: Rendering Process - The key component managing the rendering process is ForgeRenderer, which compiles a complete list of splats in a three.js scene and determines the drawing order using an efficient bucket sort algorithm [14]. - Forge supports multi-view rendering by generating additional ForgeViewpoint objects, allowing for simultaneous rendering from different perspectives [15]. Group 4: Future Plans - World Labs aims to elevate multimodal AI from 2D pixel planes to full 3D worlds, with plans to launch its first product in 2025 [17]. - The company intends to develop tools beneficial for professionals such as artists, designers, developers, filmmakers, and engineers, targeting a wide range of customers from video game developers to film studios [17].