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星期五

  1. METR Blog精选

    METR:AI 模型在公开部署前就可能带来危险

    METR 发文指出,当前前沿实验室的安全政策多聚焦部署前测试,但模型在公开部署前就可能带来风险,包括模型权重被窃取滥用、实验室员工内部滥用,以及 AI 智能体在训练或内部使用中自主追求非预期目标。文章建议把重心转向更早的能力测试与预测、模型权重安全与内部监控、以及透明披露和举报人保护等政策。

    lopment of powerful AI, and would like to see more work on fleshing out and implementing these policies. ↩ For examples of recent work in this area, see the observational scaling laws described in Ruan, Maddison, and Hashimoto 2024 or the test-time compute scaling laws of Snell et al 2024 . ↩ In the same way that responsibly disclosing zero-day exploits does not mean immediately announcing the exploits as they are discovered, responsible disclosure does not necessarily mean immediately announcin

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星期四

  1. OpenHands 官方博客

    OpenHands 通用软件开发智能体的 8 个用例

    OpenHands 官方博客列出通用软件开发智能体的 8 个用例:修 Bug、实现新功能、从零创建程序、修复失败的 CI、解决合并冲突、写文档、执行部署,以及通过 GitHub API 查看 issue、浏览文件系统并运行代码。文中以修复 CloudFlare 阻断 LLM 请求导致重试的 Bug 为例,展示智能体先定位问题、装依赖、用测试复现再修复,最后开 PR 并自动修 CI。部分任务已作为 microagents 内置在 OpenHands 中。

    rst, you can use OpenHands to directly call cloud APIs to bring up a machine. For instance, when I wanted a GPU machine to use I just said: As anyone who has done this through the AWS UI before can attest, this sort of thing requires a lot of clicks and can be a major time sink. Another option for performing deployments is to use infrastructure as code, where you specify the type of infrastructure you want as code, and execute the code to actually create the infrastructure. One common language f

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星期二

  1. vLLM 官方博客

    vLLM 结构化解码入门与 XGrammar 集成解析

    vLLM 介绍结构化解码的原理与实现,并已支持 Outlines 和 XGrammar 两种后端,以约束大语言模型输出符合指定结构。XGrammar 集成在负载下可将每个输出 token 的生成时间改善至多 5x,不适用的请求会回退至 Outlines。规划中的 v1 将重点优化性能,并探索调度器级掩码广播以支持混合请求批处理。

    top level view of structure decoding

    g Short-Term Memory. Neural Computation; Kaplan, J., McCandlish, S., Henighan, T., Brown, T. B., Chess, B., Child, R., Gray, S., Radford, A., Wu, J., & Amodei, D. (2020). Scaling Laws for Neural Language Models. arXiv preprint arXiv:2001.08361; Mikolov, T., Chen, K., Corrado, G., & Dean, J. (2013). Efficient Estimation of Word Representations in Vector Space. arXiv preprint arXiv:1301.3781; Rosenblatt, F. (1958). The perceptron: A probabilistic model for information storage and organization in t

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星期五

  1. vLLM 官方博客

    vLLM 2024 年回顾与 2025 年愿景

    vLLM 回顾了 2024 年的社区与技术进展,并提出面向 2025 年的推理扩展、生产部署和开放架构路线。其 GitHub stars 从 14,000 增至 32,600,贡献者从 190 增至 740,月下载量从 6,000 增至 27,000,支持的模型架构接近 100 种。项目还计划发布重新设计的 V1 架构,并继续推进 KV cache、MoE、长上下文、量化、推测解码和集群级部署能力。

    ction applications (e.g., powering Amazon Rufus and LinkedIn AI features). Our bi-monthly meetups have become strategic gatherings for partnerships with industry leaders like IBM, AWS, and NVIDIA, marking our progress toward becoming the universal serving solution for the open-source AI ecosystem. Read on for more details about vLLM's 2024 achievements and 2025 roadmap! This blog is based on the 16th session of the bi-weekly vLLM Office Hours. Watch the recording here. Community Contributions an

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星期四

  1. Anthropic Engineering精选

    Anthropic 谈如何构建高效智能体:从工作流到自主 Agent 的模式与取舍

    Anthropic 工程博客总结与数十个团队共建 LLM 智能体的经验,指出最成功的实现并未使用复杂框架,而是采用简单可组合的模式。文章区分了由预定义代码路径编排的工作流与由 LLM 自主决定流程和工具使用的 Agent,并给出提示词链、路由、并行化、编排者-工作者、评估者-优化者五种工作流模式及各自适用场景。作者建议从直接调用 LLM API 和简单提示词起步,仅在简单方案不足时才增加多步智能体系统的复杂度,并强调工具文档与 agent-computer interface(ACI)的设计投入应与 HCI 相当。

    is usually enough. When and how to use frameworks There are many frameworks that make agentic systems easier to implement, including: The Claude Agent SDK ; Strands Agents SDK by AWS ; Rivet , a drag and drop GUI LLM workflow builder; and Vellum , another GUI tool for building and testing complex workflows. We suggest that developers start by using LLM APIs directly: many patterns can be implemented in a few lines of code. If you do use a framework, ensure you understand the underlying code. In

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星期日

  1. Liquid AI 模型与工程博客

    Liquid AI 发布 STAR:用进化算法自动合成神经网络架构

    Liquid AI 公布基于进化算法的架构合成方法 STAR,可将模型架构表示为分层数值序列 STAR genomes,并针对自定义任务、指标和硬件自动发现与优化架构。STAR 已合成数百种设计,在质量上超过强 Transformer 和混合架构,同时缓存和参数量更小;仅需两到三轮进化,多数架构即超越 Transformer 与强混合基线。

    hybrid patterns have demonstrated modest quality improvements, more efficient scaling to longer sequences, and faster inference (earlier this year, we reported the first scaling laws for hybrids). While new computational units and interconnection strategies enable a new frontier in model performance, they also present a key challenge to architecture design due to the vast number of possible designs. Rather than relying on manual optimization and heuristics applied to specific sub-classes of com

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星期四

  1. Lilian Weng:Lil'Log精选

    Lilian Weng 长文梳理强化学习中的奖励劫持

    Lilian Weng 在 Lil'Log 发布长文,系统梳理强化学习中的奖励劫持问题,即智能体利用奖励函数的缺陷或歧义获取高分却未真正完成任务。文章按 RL 任务、LLM 任务和现实生活分类列举实例,并讨论 RLHF 中代理奖励与真实奖励的差距、LLM 作为评估者的位置偏差,以及对抗奖励函数、解耦审批、异常检测等缓解思路。作者指出,随着模型能力增强,奖励劫持更易出现,而针对 RLHF 和 LLM 的实用缓解研究仍然有限。

    cking examples in real life; Why does Reward Hacking Exist?; Hacking RL Environment; Hacking RLHF of LLMs Reward hacking occurs when a reinforcement learning (RL) agent exploits flaws or ambiguities in the reward function to achieve high rewards, without genuinely learning or completing the intended task. Reward hacking exists because RL environments are often imperfect, and it is fundamentally challenging to accurately specify a reward function. With the rise of language models generalizing to

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星期日

  1. The Gradient

    形状、对称性与结构:数学在机器学习研究中角色的演变

    The Gradient 文章指出,随着算力驱动的大规模训练不断带来新能力,数学在机器学习研究中的角色正从提供理论保证转向对训练与性能现象的事后解释,并更多用于架构与任务结构、数据对称性的高层设计。这一转变也让拓扑、代数、几何等“纯”数学领域加入概率论、分析与线性代数的行列。

    neralization: Unraveling Learning Differences Between Natural and Medical Images". In: arXiv preprint arXiv:2401.08865 (2024). [8] Yasaman Bahri et al. "Explaining neural scaling laws". In: arXiv preprint arXiv:2102.06701 (2021). [9] Utkarsh Sharma and Jared Kaplan. "A neural scaling law from the dimension of the data manifold". In: arXiv preprint arXiv:2004.10802 (2020). [10] Alessio Ansuini et al. "Intrinsic dimension of data representations in deep neural networks". In: Advances in Neural Inf

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星期二

  1. Zyphra Research

    Zyphra 发布 5 万亿 token 数据集 Zyda-2,用 NVIDIA NeMo Curator 将处理时间从 3 周缩短到 2 天

    Zyphra 发布 Zyda-2,一个约 5 万亿 token 的宽松许可数据集,由 DCLM、FineWeb-Edu、Zyda-1 和 Dolma v1.7 的 Common Crawl 部分经跨数据集去重与模型过滤组合而成,已在 HuggingFace 上开放。借助 NVIDIA NeMo Curator 的 GPU 加速,数据处理从 CPU 上的 3 周缩短到 2 天,总拥有成本降低 2 倍。Zyphra 称用 Zyda-2 退火训练的模型在 MMLU、Hellaswag 等聚合评测上优于 DCLM 和 FineWeb-Edu,其 Zamba2 系列模型即基于该数据集的早期版本训练。

    the first album was released, Shaw and Deuce wasted no time with new material, releasing the "Beware Soul Snatchers" single within weeks of its appearance. An even denser slab of inboard studio trickery, "Soul Snatchers" was the clearest example to date of the group's evolving sound, though further recordings failed to materialize. ‍ 1 Leaving Perdition 8:10 2 Intermodal 3:39 3 Lunar White 3:25 4 She's A Black Belt 3:14 5 Rohm 1:09 6 Radiolucence (Version) 5:31 7 Deepest Laws 14:14 No comments:

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星期三

  1. Zyphra Research

    Zephra 解析边缘 LLM:优势、挑战与解决方案

    Zephra 发文讨论在 iPhone 15 Pro 和 NVIDIA Jetson Orin 等边缘设备上部署大语言模型的关键因素,指出内存带宽是核心瓶颈,并提出量化、低秩适配器和实时参数卸载等技术来高效利用本地硬件。其 Zamba 系列模型采用参数共享设计,以降低内存占用和生成下一个 token 所需的 FLOP,从而降低延迟、提升吞吐。

    4) [8] Artom Eliseev and Denis Mazur, “Fast Inference of Mixture-of-Experts Language Models with Offloading,” arXiv preprint arXiv:2312.17238v1 [cs.LG], Dec 2023 (https://arxiv.org/pdf/2312.17238) [9] Leyang Xue, Yao Fu, Zhan Lu, Luo Mai, Mahesh Marina, “MoE-Infinity: Offloading-Efficient MoE Model Serving”, arXiv preprint arXiv:2401.14361, Jan 2024 [10] Tim Dettmers, Luke Zettlemoyer, “The case for 4-bit precision: k-bit Inference Scaling Laws”, arXiv preprint arXiv:2212.09720 [cs.LG], Dec 2022

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星期三

  1. Sarvam AI Blog精选

    Sarvam AI 发布支持 10 种印度语言的全栈生成式 AI 平台

    Sarvam AI 发布全栈生成式 AI 平台,支持 10 种印度语言并具备语音能力,同时推出 Sarvam Agents、Sarvam 2B、Shuka 1.0 等产品。Sarvam Agents 可通过电话、WhatsApp 或应用内调用,语音智能体价格从每分钟 1 卢比起。Sarvam 2B 称是印度首个开源 2B 小规模 Indic LLM,基于 4 万亿 token 内部数据集从零训练;Shuka 1.0 为基于 Llama 8B 扩展的开源 AudioLM,支持印度语言语音输入与文本输出。

    Sarvam product launch

    s, not just provide information, simplifying daily life for users. Finally, AI development must respect India's sovereignty, keeping data within the country and adhering to local laws. Vivek Raghavan, Co-Founder of Sarvam AI,said "We are thrilled to unveil our full-stack GenAI platform, which marks a pivotal moment for Sarvam AI and the Indian AI ecosystem. This launch is just the beginning of our journey. We will continue to enhance the capabilities of our platform with new features to ensure i

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星期四

  1. Suno:Blog精选

    Suno 回应唱片公司诉讼:称诉讼在事实和法律上均站不住脚

    Suno 就大型唱片公司提起的诉讼作出回应,称该诉讼在事实和法律上均存在根本缺陷,是唱片公司选择诉讼而非创新的又一例。Suno 表示其模型通过类似人类学习音乐风格与模式的方式创作新音乐,训练数据来自公开互联网上的中高质量音乐,并称诉讼发生时公司正与 RIAA 主要唱片公司成员进行富有成效的讨论。目前已有超过 1200 万人在使用 Suno 以新方式参与音乐创作。

    The Future of Music

    the record labels have attempted to limit progress. They have spent decades attempting to control the terms of how we create and enjoy music, and this time is no different. This lawsuit is fundamentally flawed on both the facts and the law, and is nothing more than yet another instance where they chose litigation over innovation. For starters, the major record labels clearly hold misconceptions about how our technology works. Suno helps people create music through a similar process to one human

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星期四

  1. vLLM 官方博客

    vLLM 启动开放治理进程并公布性能优化路线图

    vLLM 已启动加入 LF AI & Data Foundation 的孵化流程,并将性能列为首要任务。项目公布了公开性能追踪与可复现基准,已集成 FlashAttention2、PagedAttention 和 FlashInfer,并计划优化调度器、API 前端及数据处理开销。

    ily life. We believe vLLM’s success comes from the power of the strong open source community. vLLM is actively maintai ned by a consortium of groups such as UC Berkeley, Anyscale, AWS, CentML, Databricks, IBM, Neural Magic, Roblox, Snowflake, and others. To this extent, we want to ensure the ownership and governance of the project is open an d transparent as well. We are excited to announce that vLLM has started the incubation process into LF AI & Data Foundation. This means no one party will ha

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星期二

  1. vLLM 官方博客

    vLLM 宣布支持 Llama 3.1 系列模型

    vLLM 已支持 Llama 3.1 系列模型,可运行完整的 128K 上下文窗口,并通过分块预填充控制内存占用。针对 Llama 3.1 405B,vLLM 支持 FP8、流水线并行、张量并行和 CPU 卸载;在无 InfiniBand 的 16 GPU 环境中,2 路流水线并行结合 8 路张量并行相比 16 路张量并行获得 6.6x 性能提升。

    o-use, open-source serving engine for large language models. vLLM has support for more than 40 types of open-source LLMs, a diverse set of hardware platforms (Nvidia GPU, AMD GPU, AWS Inferentia, Google TPU, Intel CPU, GPU, Gaudi, …) and all kinds of inference optimizations. Learn more about vLLM here. For the new Llama 3.1 series, vLLM can run the models with a full 128K context window. In order to support a large context window, vLLM automatically enables chunked prefill. Chunked prefill not o

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星期一

  1. Mario Zechner 原创博客

    Mario Zechner 两年回顾:从开源项目到乌克兰援助平台

    Mario Zechner 回顾了自 2022 年 5 月以来的多个项目,包括为乌克兰难民开发的援助平台 Cards for Ukraine。该项目在 2022 年 5 月 15 日上线,一周内获得 3 万欧元捐款和约 1100 人注册,并发放了超过 500 张 50 欧元购物券。他还提到 PayPal 曾关闭其账户,后经沟通恢复。

    e assigned to an unemployed person by AMS, has become a literal textbook example of a biased decision-making algorithm within a governmental organization. There's also an ongoing lawsuit regarding that same algorithm (a biased linear regression model). It just really grinds my gears. Generative AI workshop As my rant about AMS Berufsinfomat got picked up by media and made the rounds on social media, a bunch of companies contacted me, asking for a workshop on generative AI. I've previously worked

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星期日

  1. Benedict Evans:Blog

    如何思考 AGI — Benedict Evans

    Benedict Evans 在文章中梳理了围绕 AGI 的争论:LLM 兴起后,部分原本认为 AGI 还需数十年的 AI 科学家改口称可能更近,doomers 甚至警告 AGI 可能自发涌现并威胁人类。但另一批专家认为仍需未知数量的未知突破,双方都承认自己并不真正知道,因为目前既没有关于通用智能的连贯理论模型,也不清楚 LLM 为何有效、还能提升多少。

    moon is. We can’t plot people and ChatGPT on a chart and draw a line to say when one will reach the other, even just extrapolating the current rate of growth. All analogies have flaws, and the flaw in my analogy, of course, is that if the Apollo program went wrong the downside was not, even theoretically, the end of humanity. A little before my grandfather, here’s another magazine writer on unknown risks: I was reading in the paper the other day about those birds who are trying to split the atom

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星期一

  1. Benedict Evans:Blog

    AI 与规模问题:当量变成为质变 — Benedict Evans

    Benedict Evans 指出,生成式 AI 正让许多原本小规模可行的行为变得大规模可行,从而改变其性质:高中生可用家用 PC 或手机把 50 到 500 名同学的照片输入 ML 模型生成数千张伪造图像,ChatGPT 也让作业和考试作弊几乎免费。他认为这类问题究竟是新问题还是旧问题的新表现,取决于感知、文化与政治,而非技术。

    erywhere. There’s not necessarily any right answer here and no way to get to one through any analytic process - this is a social, cultural and political question, with all sorts of unpredictable outcomes. The US bans a gun database, and yet, the US also has a company that scans your driving licence against a private blacklist of tens of thousands of people (another database) shared across over thousands of bars and nightclubs. And no privacy laws. Ways to think about AGI Looking for AI use-cases

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星期四

  1. The Gradient

    Mamba 解析:比 Transformer 快 5 倍的状态空间模型

    Mamba 是一种基于状态空间模型(SSM)的替代架构,首次在保持与 Transformer 相近性能和缩放规律的同时,支持长达 100 万 token 的序列长度,推理速度最高可达 Transformer 的 5 倍。其 Mamba-3B 模型在语言建模上超越了同规模 Transformer,并追平两倍规模的 Transformer。Mamba 通过移除注意力机制的二次瓶颈,实现了线性序列缩放和快速推理。

    r, is one of an alternative class of models called State Space Models ( SSMs ). Importantly, for the first time, Mamba promises similar performance (and crucially similar scaling laws ) as the Transformer whilst being feasible at long sequence lengths (say 1 million tokens). To achieve this long context, the Mamba authors remove the “quadratic bottleneck” in the Attention Mechanism. Mamba also runs fast - like “up to 5x faster than Transformer fast” 1 . Gu and Dao, the Mamba authors write: Mamba

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星期日

  1. Benedict Evans:Blog

    AI 伦理的问题——Benedict Evans

    Benedict Evans 以英国邮局富士通系统冤案为例指出,AI 伦理与 AI 监管面临的核心难题是抽象层级错误:不同场景的 AI 应用(假释、房贷、内容审核、药物研发)是完全不同的问题,不存在一个能覆盖所有情况的伦理领域或统一监管法律。他同时提到 Google Gemini 争议,并强调生成式 AI 的形态连业内都难以预测,立法需要保持谦逊。

    demand that Microsoft stop this from happening again. That would be the wrong level of abstraction. This, I think, is the challenging in talking about ‘AI Ethics’, or in writing laws to regulate ‘AI’. There are lots of ways that bad people can do bad things with software, and there are lots of ways that people can screw up with software - we worry what happens if the technology works and we worry what happens if it doesn’t work. In the last decade, machine learning created a bunch of new ways t

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星期日

  1. The Gradient

    Salmon in the Loop:水电大坝鱼类计数中的 AI 与人工协作

    The Gradient 文章讲述作者在美国水电大坝鱼类计数项目中担任顾问的经历,介绍了为满足 FERC 环保法规要求而进行的鱼类过坝研究,以及视觉计数等数据采集方式存在的误差。部分机构正探索用计算机视觉和机器学习大幅自动化鱼类计数。

    rform, such as identification of the species or life stage of a fish. This may be especially challenging in a regulated industry like hydropower, as clients are subject to strict laws and regulations that require them to ensure that any tools or technologies they use are reliable and safe. They may be skeptical of a new machine learning system and may require assurances that it has been thoroughly tested and will not pose any risks to the environment or to through data integrity, algorithmic tra

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