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星期二

  1. Transluce

    Transluce 的 AI 智能体分析工具 Docent 进入公开 alpha

    Transluce 宣布其 AI 智能体行为分析工具 Docent 进入公开 alpha,任何用户都可在 docent.transluce.org 上传自己的数据进行分析。Docent 可将“模型是否在 reward hacking”这类模糊问题转化为精确评分标准,并给出该行为出现频率的量化测量;数据接入只需几行代码,可用 Python tracing 库或与 Inspect 的原生集成。相比 2025 年 3 月的技术预览,此次更新加入了访问控制与多用户协作,transcript 上限提升两个数量级,并新增评分标准细化工具和图表可视化。

    The Docent homepage

    ase continue sharing your feedback, bug reports, and feature requests! Acknowledgments Thanks to all our private alpha testers: Anthropic, Apollo Research, Bridgewater AIA Labs, Epoch AI, Google DeepMind, HAL (Princeton Language and Intelligence), MATS Research, METR, Palisade Research, Penrose, Redwood Research, Thinking Machines Lab, UIUC DDKang Lab, as well as other unlisted organizations and individuals. Please reach out to join our community of alpha testers and receive white-glove support!

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星期三

  1. Ollama Blog精选

    Ollama 发布 macOS 和 Windows 桌面应用

    Ollama 的新应用已在 macOS 和 Windows 上线,提供下载模型并直接对话的图形界面。新应用支持拖放文件,可对文本或 PDF 进行推理,处理大文档时可在设置中提高上下文长度,但会占用更多内存。应用还基于新的多模态引擎支持向 Gemma 3 等模型发送图片,并能处理代码文件;纯 CLI 版本仍可在 Ollama 的 GitHub releases 页面单独下载。

    illustration of Ollama seeing the new app

    g large documents, Ollama’s context length can be increased in the settings. Note: this will require more memory. Multimodal support Building on Ollama’s new multimodal engine, images can be sent to models that support them, such as Google DeepMind’s Gemma 3 model. Documentation writing Code files can be processed by models for understanding. Download Ollama’s new app today on macOS and Windows. For pure CLI versions of Ollama, standalone downloads are available on Ollama’s GitHub releases page.

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星期四

  1. Ollama Blog

    Ollama 推出多模态模型新引擎,支持 Llama 4、Gemma 3、Qwen 2.5 VL 等视觉模型

    Ollama 发布新的多模态引擎,开始支持 Meta Llama 4、Google Gemma 3、Qwen 2.5 VL、Mistral Small 3.1 等视觉模型,可进行多图理解、文档扫描与字符识别。此前 Ollama 依赖 ggml-org/llama.cpp 提供模型支持,新引擎让每个模型自包含并暴露自己的投影层,同时加入图像缓存、显存估算与 KV cache 优化,例如针对 Gemma 3 的滑动窗口注意力和 Llama 4 Scout 的分块注意力。后续计划支持更长上下文、思考/推理、流式工具调用和 computer use。

    e optimizations to improve how memory can be efficiently used. Ollama configures causal attention at the individual model level instead of configuring as a group. Examples: Google DeepMind’s Gemma 3 leverages sliding window attention, and Ollama can leverage that to allocate a subset or a portion of the model’s context length to improve performance, and because of the resulting memory efficiency, we can increase the context length of the model on the same system or use the remaining memory for h

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星期一

  1. Prime Intellect

    Prime Intellect 开源分布式推理栈,面向消费级 GPU 与公网高延迟

    Prime Intellect 发布分布式推理栈预览,并开源 PRIME-IROH、PRIME-VLLM、PRIME-PIPELINE 三个代码库,目标是让消费级 GPU 通过公网连接运行推理。文章指出流水线并行通信需求最低,适合分布式环境,但同步流水线会因 100ms 级跨洲延迟形成吞吐上限,而异步微批调度在内存带宽受限的解码阶段无法带来训练那样的加速。团队称已可用私有硬件通过公网跑推理,正把组件接入自家栈,用于 SYNTHETIC-2 合成数据运行。

    runtime of operations on GPUs to analyze bottlenecking factors during inference workloads on a single node. Much of the notation is borrowed from How To Scale Your Model by Google DeepMind. If you are already familiar with traditional inference math, skip to Distributed Inference. Accelerator Math Whenever we run an operation on an accelerator, there are two things that take time: Computation: How long it takes to compute all the floating-point operations (FLOPs) required for the operation Commu

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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。

    ai-models-dangerous-before-public-deployment/}} , year = {2025} , month = {01} , } Many frontier AI safety policies from scaling labs (e.g. OpenAI’s Preparedness Framework, Google DeepMind’s Frontier Safety Framework, etc.), as well as past work by third party evaluators including UK AISI , Apollo Research , and METR , focus on pre-deployment testing – ensuring that the AI model is safe and that the lab has sufficient security before the lab deploys the model to the public. Such pre-deployment s

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星期五

  1. Prime Intellect精选

    Prime Intellect 启动 INTELLECT-1:首个全球分布式训练的 10B 参数模型

    Prime Intellect 发布 INTELLECT-1,称其为首个在全球分布式节点上训练的 10B 参数模型,并开放算力贡献入口。该模型基于 Llama-3 架构,训练数据混合 55% Fineweb-edu、20% DLCM、20% Stack v2 和 5% OpenWebMath,经 Llama-3 tokenizer 处理后超过 6 万亿 token。配套发布的分布式训练框架 Prime 支持容错训练、节点动态上下线和 int8 伪梯度通信,官方称生产训练中每 100 步同步一次,通信仅占总训练时间的 1-2%。

    INTELLECT–1: Launching the First Globally-Distributed Training of a 10B Parameter Model

    yone to contribute compute and participate. This brings us one step closer towards open source AGI. Recently, we published OpenDiLoCo, an open-source implementation and scaling of DeepMind’s Distributed Low-Communication (DiLoCo) method, enabling globally distributed AI model training. We not only replicated and open sourced this work but successfully scaled it to the 1B parameter size. Now, we are scaling it up by a further 10× to 10B-parameter model size, 25x from the original research. This b

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星期日

  1. The Gradient

    我们需要以福祉为基础、关于 AI 的积极愿景

    The Gradient 刊文主张,AI 讨论应跳出乐观与悲观之争,把“有益 AI”落到个人福祉与社会健康上。作者认为无需先给人类福祉下统一定义,可围绕亲密关系、有意义的工作、成长感等具体因素展开,并强调基础模型的能力与部署路径至关重要,可通过新算法、基于福祉的模型评估和训练数据让模型理解并支持人类福祉。

    and reward progress. To tie these ideas about measurement together, we suggest a taxonomy, looking at measures of AI capabilities, behaviors, usage, and impacts . Similar to this DeepMind paper , the idea is to examine spheres of expanding context, from testing a model in isolation (both what it is capable of and what behaviors it demonstrates), all the way to understanding what happens when a model meets the real world (how humans use it, and what its impact is on them and society). The idea i

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星期六

  1. The Gradient

    神经算法推理:让神经网络学会执行经典算法

    The Gradient 刊文探讨神经算法推理,即用深度神经网络捕捉最短路径、排序等经典算法计算。文章指出,MIT 的《What Can Neural Networks Reason About?》证明算法对齐越好泛化越好,GNN 与动态规划天然对齐,在 DP 执行基准上优于归纳偏置较弱的架构。作者同时提醒,算法对齐并不能让人随意套用任意表达力强的 GNN,分布外表现仍是关键挑战。

    ,并且处理器是使用基于这些算法构建的定制执行数据集来训练的。这通常既需要领域专业知识,也需要计算机科学专业知识,因此构成了明显的入门门槛! 自从我开始从事NAR以来,我一直对降低这一入门门槛抱有浓厚兴趣,同时也希望提供一组在各种任务中都应该有用的“基础处理器”。这促成了为期两年的工程努力,最终开源了CLRS算法推理基准(https://github.com/deepmind/clrs)[44]。 CLRS基准的灵感来自Cormen、Leiserson、Rivest和Stein的经典教材《算法导论》(CLRS)[1],这是关于经典算法和数据结构最受欢迎的本科教材之一,也是竞赛程序员的“圣经”。尽管它有数千页之多,却只包含约90种不同的算法,而这些算法往往构成了整个软件工程职业生涯的基础!因此,CLRS中的算法可以构成我们所需的坚实的“基础处理器”集合,我们着手让构建和训练NAR处理器来执行CLRS中的算法变得容易。 在其第一个版本中,我们发布了CLRS-30,这是CLRS中三十种算法的数据集和处理器生成器集合,涵盖多种技能:排序、搜索、动态规划、图算法、字符串算法和几何算法。 CLRS-

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星期四

  1. a16z:News

    a16z 发布 AI Canon:现代 AI 必读资源精选清单

    a16z 发布“AI Canon”精选资源清单,汇集过去几年对 AI 领域影响最大的论文、博客、课程与指南。清单从 Transformer 与潜在扩散模型入门讲起,延伸到 LLM 技术学习、实践指南与 AI 市场分析,并收录以 2017 年 Google 论文《Attention is All You Need》为起点的里程碑研究。

    tion retrieval. (blog post); Improving language models by retrieving from trillions of tokens (2021): RETRO, for “Retrieval Enhanced TRansfOrmers,” is another approach—this one by DeepMind—to improve LLM accuracy by accessing information not included in their training data. (blog post); LoRA: Low-rank adaptation of large language models (2021): This research out of Microsoft introduced a more efficient alternative to fine-tuning for training LLMs on new data. It’s now become a standard for commu

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星期四

  1. Lilian Weng:Lil'Log

    如何构建开放域问答系统?| Lil'Log

    Lil'Log 回顾了构建开放域问答(ODQA)系统的常见方法,核心是 DrQA 提出的 retriever + reader 框架:先用 TF-IDF 经典 IR 或神经网络稠密向量检索相关文档,再抽取答案。DrQA 以 Wikipedia 为知识源返回 top k=5 篇文章,BERTserini 则用 Anserini 检索 top k=10 文档并以 BM25 排序、BERT 作答。文中还指出公开 QA 数据集中 58-71% 的测试答案出现在训练集里。

    estion-answer pairs authored by trivia enthusiasts and independently gathered multiple evidence documents per question; Jeopardy! Questions: contains 200,000+ Jeopardy! questions; DeepMind Q&A Dataset: question/answer pairs from CNN and Daily Mail articles; bAbi: a rich collection of datasets for text understanding by Facebook; FEVER: for fact extraction and verification; SearchQA: question-answer pairs were crawled from from J! Archive, and then augmented with text snippets from Google; Quasar-

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星期日

  1. Lilian Weng:Lil'Log

    深度强化学习中的探索策略

    Lilian Weng 在 Lil'Log 梳理了深度强化学习中的常见探索策略,包括 epsilon-greedy、UCB、Boltzmann 探索、Thompson 采样,以及熵损失项和基于噪声的探索。文章重点讨论 hard-exploration 与 Noisy-TV 两个难题,并介绍以内在奖励加成鼓励探索的思路,如基于计数的探索方法。

    y discourages revisiting the same state within the same episode; Slowly discourages revisiting states that have been visited many times across episodes Later, built on top of NGU, DeepMind proposed “Agent57” (Badia, et al. 2020b), the first deep RL agent that outperforms the standard human benchmark on all 57 Atari games. Two major improvements in Agent57 over NGU are: A population of policies are trained in Agent57, each equipped with a different exploration parameter pair $\{(\beta j, \gamma j

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星期五

  1. Lilian Weng:Lil'Log

    元学习:如何让模型学会快速学习 | Lil'Log

    Lil'Log 这篇文章系统梳理了元学习(learning to learn)的问题定义与主要方法,目标是让模型在少量训练样本下快速适应新任务。文章将常见方法归纳为基于度量、基于模型和基于优化三类,并介绍了 few-shot 分类中支持集与预测集的划分,以及 learner 与 meta-learner 两阶段更新框架。

    athcal{L}(B) = \sum {(\mathbf{x} i, \mathbf{x} j, y i, y j)\in B} (r {ij} - \mathbf{1} {y i=y j})^2$ (Note: There is another Relation Network for relational reasoning, proposed by DeepMind. Don’t get confused.) Prototypical Networks Prototypical Networks (Snell, Swersky & Zemel, 2017) use an embedding function $f \theta$ to encode each input into a $M$-dimensional feature vector. A prototype feature vector is defined for every class $c \in \mathcal{C}$, as the mean vector of the embedded support

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星期日

  1. Lilian Weng:Lil'Log

    Attention? Attention!:注意力机制如何解决 Seq2Seq 长句遗忘问题

    Lilian Weng 在 Lil'Log 撰文解释注意力机制:seq2seq 模型把输入压缩成固定长度上下文向量,处理长句时容易遗忘前文,Bahdanau 等人 2015 年提出的注意力机制在上下文向量与整个源输入之间建立可定制的捷径连接,让源与目标的对齐由上下文向量学习控制。文中给出注意力权重的数学定义,并指出对齐分数矩阵可显式展示源词与目标词的相关性。

    rsarial Networks.” arXiv preprint arXiv:1805.08318 (2018). [12] Nikhil Mishra, Mostafa Rohaninejad, Xi Chen, and Pieter Abbeel. “A simple neural attentive meta-learner.” ICLR 2018. [13] “WaveNet: A Generative Model for Raw Audio” - Sep 8, 2016 by DeepMind. [14] Oriol Vinyals, Meire Fortunato, and Navdeep Jaitly. “Pointer networks.” NIPS 2015. [15] Alex Graves, Greg Wayne, and Ivo Danihelka. “Neural turing machines.” arXiv preprint arXiv:1410.5401 (2014). Architecture; Attention; Transformer; Rnn

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星期一

  1. Lilian Weng:Lil'Log

    深入浅出强化学习:Lilian Weng 的 RL 入门长文

    Lilian Weng 在 Lil'Log 发布了一篇强化学习入门长文,从智能体与环境交互出发,系统梳理了状态、动作、奖励、策略、价值函数等核心概念,并区分 model-based 与 model-free、on-policy 与 off-policy 等算法类别。文章以 AlphaGo、AlphaGo Zero 和 OpenAI DOTA2 1v1 机器人等案例引入,面向新手作为进一步研究前沿工作的起点。

    e of Go has been an extremely hard problem in the field of Artificial Intelligence for decades until recent years. AlphaGo and AlphaGo Zero are two programs developed by a team at DeepMind. Both involve deep Convolutional Neural Networks (CNN) and Monte Carlo Tree Search (MCTS) and both have been approved to achieve the level of professional human Go players. Different from AlphaGo that relied on supervised learning from expert human moves, AlphaGo Zero used only reinforcement learning and self-

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