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星期二

  1. Google Developers Blog

    Google DeepMind 发布 EmbeddingGemma 2 端侧多模态嵌入模型

    Google DeepMind 发布开放权重多模态嵌入模型 EmbeddingGemma 2,可将文本、图像、视频帧和音频映射到统一的向量空间,参数量 740M,文本权重在 Google Pixel 11 Pro 上仅需约 191MB 活跃内存,完整多模态模型约 567MB。该模型无需训练数据或微调即可作为端侧决策引擎,将用户输入直接与分类标签和描述匹配,实现毫秒级零样本意图路由。Google AI Edge Gallery 新增 Instant Media Search 和 Video Moments Finder 两个演示,Google AI Edge Foresight for Mac 也由 EmbeddingGemma 2 与 Gemma 4 驱动;未来数周内该模型将通过 ML Kit 以服务形式登陆 Android,并支持 NPU 加速。

    the power of EmbeddingGemma 2 right away through Google AI Edge’s interactive showcases, Google AI Edge Gallery on mobile and Google AI Edge Foresight on Mac, and how you can leverage the model to build your own private, on-device semantic search, visual keyframe retrieval, and condition-trigger workflows. In the coming weeks, we will also make this model available as a service on Android, accessible through ML Kit, including using NPU acceleration to further optimize performance across a broad

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  2. MarkTechPost

    Reflection AI 发布 Beam:501B 开源权重 MoE 模型,23B 激活参数面向编码与智能体任务

    Reflection AI 发布首款开源权重模型 Beam,采用稀疏 MoE 架构,总参数 501B、每 token 激活 23B,面向编码、推理与智能体工作负载。该模型预训练使用 23.8 万亿 token,在 6,144 块 NVIDIA GB300 NVL72 GPU 上不到 4 周完成,中训练将有效上下文扩展至 1M token;强化学习阶段用 10.5K 块 GB300 GPU 运行 4 周,生成超 1 亿次 rollout。Reflection 报告 Beam 在 SWE-bench Verified 得分 80.9、Terminal Bench v2.1 得分 80.1,目前处于最终红队测试阶段,通过 Reflection 平台候补名单提供早期访问,Apache 2.0 权重计划于本月晚些时候发布。

    ained routed experts. Load balancing builds on auxiliary-loss-free balancing from DeepSeek-V3, adding cosine decay of expert-bias updates. The busiest expert reached just 1.04x average load at the end of pretraining. Across all 52 layers, residual norms stayed bounded using depth-based scaling, SandwichNorm, attention gating and FP32 residual accumulation. Pretraining finished in under 4 weeks on 6,144 NVIDIA GB300 NVL72 GPUs. Goodput reached 92.3% near the end, with 9 semi-automatic rewinds. Mi

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  3. MarkTechPost

    如何用 NVIDIA Cosmos3-DROID 构建流式机器人学习流水线

    教程演示了围绕 NVIDIA Cosmos3-DROID 数据集构建端到端流式机器人学习流水线,无需下载其 707 GB 仓库:通过 HTTP byte-range 与 PyArrow 按行组、列读取 Parquet,并用基于 seek 的 PyAV/FFmpeg 只解码所需 AV1 视频窗口。随后将 episode 转为状态-动作轨迹,用数据集统计量归一化,构建 ACT 风格分块 PyTorch 数据集并训练多模态行为克隆策略。最后以开环 rollout 和时间集成评估,报告逐关节 MSE 与 R^2 并保存策略 checkpoint。

    on metadata so we can reuse the policy in subsequent experiments. In conclusion, we showed how to turn a massive real-world robot dataset into a learning pipeline while keeping storage and data-transfer requirements extremely low. We used metadata-driven episode discovery, column- and row-group-level Parquet projection, and seek-based video decoding to access only the information required for analysis and training rather than materializing the full dataset. We combined proprioceptive state histo

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  4. Claude Code:GitHub Releases

    Claude Code v2.1.290 发布

    Claude Code 发布 v2.1.290,为 mod 的 turn.step hook 结果新增 serverToolUses,记录 API 自身运行的工具调用及其 id、name、input 和起止时间;plugin hooks 的 tool.check 事件新增 agentId,便于区分 subagent 与主会话的权限检查。该版本还修复了代理与网关拒绝 beta header 导致的请求失败、长会话图片过多卡在“Request rejected as unprocessable by the model”、WebFetch 静默丢弃超过 100,000 字符页面文本等问题。

    ule missing a command or path whose name came from a variable set as a prefix on declare, typeset, export or readonly; Fixed Read deny rules not applying to image paths pasted or dragged into the prompt, or to file names listed for an @-mentioned folder; Fixed a case where a user-installed mod could make an organization's guard skip its check; such a mod is now unloaded; Fixed plugin hooks stalling each redraw when a mod draws a long multi-line text holding non-Latin characters; Fixed repeated C

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  5. SemiAnalysis

    SemiAnalysis 实测:Anthropic 订阅价值约为 OpenAI 的 5 倍以上

    SemiAnalysis 对 Anthropic、OpenAI、Meta、MiniMax、Moonshot、Z.ai、Cursor、Cognition 等订阅计划逐一做了额度实测,按模型与工作负载换算成 API 等价价值。在中端模型上,Anthropic 的 Opus 5.5 提供的 API 等价价值约为 OpenAI 的 5 倍;OpenAI 上周把 200 美元档额度减半并新增 500 美元档,使 Pro 100、200、500 每美元 token 数趋于一致。文章还给出按 token 类型(输入、缓存写入、缓存读取、输出)测量额度消耗的方法,并指出厂商可随时通过调整 credit 成本静默改变额度。

    ng 100% utilization and 92% API gross margins, maxing out Opus 5.5 vs Fable 5.1 usage corresponds to -369% and 1% gross margins respectively. If we were to use a more realistic average utilization of 20%, then gross margins rise to 6% and 80% respectively. In other words, Anthropic would likely already have software like margins on their subscription plans if everyone only used Fable. Opus class models will continue to become cheaper to serve over time as Anthropic figures out how to make the mo

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  6. TechCrunch AI

    Hot Girl Hotline:AI 时代的“Dear Abby”情感咨询应用

    两位姐妹创立了面向年轻女性的 AI 情感咨询应用 Hot Girl Hotline,用行为科学支撑的建议替代通用聊天机器人,并设置安全机制,遇到风险信号会引导用户联系 988 危机热线。该应用采用多种 AI 模型组合,数据传输和存储均加密,不售卖也不用于训练数据,第三方模型遵循零数据保留政策。目前以每月 9.99 美元订阅变现,已有数百名活跃用户付费,应用已上线 iOS 和网页端,并将参加 TechCrunch Disrupt 2026 的 Startup Battlefield 200。

    ortunately, as we’ve seen, chatting with a general-purpose chatbot about personal topics can sometimes lead to disastrous effects — especially for those who were already mentally fragile. ChatGPT, for example, has faced a wave of lawsuits over its alleged manipulative conversation tactics that plaintiffs say contributed to negative mental health effects, including, in some cases, suicide. The idea behind Hot Girl Hotline is to reach young women who are looking to have these sorts of private conv

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  7. IEEE Spectrum

    治理 AI 的 6 条准则

    Lowe's 企业 AI 转型负责人提出“governor shift”,主张从构建 AI 系统转向治理 AI 系统,并给出 6 条准则:识别“人类中间件”、用原则替代规则、把文化写进代码、安装信任恒温器而非开关、先修复上下文再治理。他引用 MIT Media Lab Project NANDA 2025 年报告称,在 300 亿至 400 亿美元企业生成式 AI 投资下,仅约 5% 的集成试点产生显著价值,这一现象被称为 GenAI Divide。

    e the information sits scattered across applications that store it in incompatible formats. I describe the full loop as Connections, Context, Reasoning, Actions, and Governance (CCRAG). Connections feed in raw information such as transactions and service records. Context weaves it into a context graph, which is a single connected picture of the business that gives agents something close to memory. Reasoning makes the decisions. Actions carry them back into the business systems. Governance keeps

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  8. Canary Media:Data Centers 原创报道

    弗吉尼亚州新清洁能源计划:让 AI 数据中心热潮为碳中和买单

    美国弗吉尼亚州民主党州长 Abigail Spanberger 于 10 月 1 日公布新清洁能源计划,坚持《弗吉尼亚清洁经济法案》和区域温室气体减排倡议,并首次用规划软件建模四种到 2050 年净零碳的路径。方案预计电力需求增长 85%,每年新增 1.2 至 1.8 吉瓦太阳能,并强调需求灵活性;计划称科技行业到 2050 年可为公用事业贡献 2650 亿美元,而总成本最高达 4220 亿美元。

    a step taken recently by governors in both red Texas and blue New York. But a new clean energy plan crafted by Democratic Gov. Abigail Spanberger offers a different solution: Leverage the growth of data centers to go carbon-free. Unveiled Oct. 1, the document doubles down on the Virginia Clean Economy Act (VCEA), which requires utilities to produce all carbon-free energy by midcentury; and participation in the Regional Greenhouse Gas Initiative, a multistate compact to curtail carbon pollution.

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  9. The Next Platform

    AI 支出是 IT 预算中的蜜獾:Gartner 预测 2027 年将达 3.64 万亿美元

    Gartner 最新预测显示,AI 支出 2025 年增长 2.6 倍至 1.79 万亿美元,2026 年将增长 49.7% 至 2.67 万亿美元,2027 年再增 36% 至 3.64 万亿美元;同期传统 IT 支出持续萎缩,2025 年下降 12.5% 至 3.79 万亿美元。Gartner 将 GenAI 模型许可、AI 智能体与助手销售从 AI 数据科学平台中单独拆分统计,并上调 2025 年 AI 基础设施支出至 9819 亿美元。

    is just what “software” will do. What everyone is most keen on understanding, for the sake of the GenAI bubble expanding even more, is how AI infrastructure spending – servers, storage, and switching – is holding up. In its review of 2025, Gartner actually raised AI infrastructure spending for 2025 a bit, from $975.6 billion in its May forecast to $981.9 billion in the September forecast. For 2026, Gartner added an additional $52.9 billion, and for 2027, it added $87.4 billion. I strongly suspec

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  10. AWS Machine Learning

    AWS 推出 aws-ai-ml 技能:为 Kiro、Claude Code、Codex 等编码智能体提供 SageMaker 推理优化能力

    Amazon SageMaker AI 优化生成式 AI 推理推出 aws-ai-ml 技能,通过 Agent Toolkit for AWS 提供给 Kiro、Claude Code、Codex 等编码智能体,使其能对端点做基准测试、推荐部署配置、对比性能并生成可执行的 SageMaker Python SDK v3 代码。该技能基于 Model Context Protocol(MCP),可在本地或 SageMaker Studio JupyterLab 空间安装,10 分钟即可开始使用。

    right instance type to deploy it on SageMaker AI, tell your agent. It doesn’t matter where your model lives or how you obtained it: Fine-tuned or custom model in Amazon Simple Storage Service (Amazon S3): You trained or downloaded a model and stored it in S3. Provide the S3 URI and your optimization goal. Example prompt: “I want to find the cheapest instance type to deploy my fine-tuned model on SageMaker.”; Publicly available foundation model from Amazon SageMaker JumpStart: You want to deploy

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  11. AWS Machine Learning

    如何在 AWS GovCloud 中用 Claude Code 与 Amazon Bedrock 处理合规工作负载

    Anthropic 的 Claude Opus 5.5、Claude Sonnet 5.5 与 Claude Sonnet 5 已在 AWS GovCloud(US)区域上线 Amazon Bedrock,其中 Claude Sonnet 5 持有 FedRAMP Class D 认证及 DoD IL4/IL5 授权。用户可通过智能体编码工具 Claude Code 在终端、VS Code、JetBrains 等 IDE 中运行 AI 辅助开发,同时保持合规对齐。Bedrock 提供 bedrock-runtime 与 bedrock-mantle 两个端点,前者支持 Guardrails、Knowledge Bases 与调用日志,后者原生支持 Anthropic Messages API。

    ssisted development for regulated workloads. Claude Sonnet 5, with FedRAMP Class D (formerly High) certification and DoD IL4/IL5 authorization, offers the strongest compliance coverage for sensitive environments. Claude Sonnet 5.5, with FedRAMP Class D certification, is a step up from Claude Sonnet 5 on coding and knowledge work at a lower cost per task. Claude Opus 5.5, with FedRAMP Class D certification, brings deeper reasoning and longer autonomous task capabilities for workloads where that c

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  12. The Verge AI

    Altman 称 AI 收益巨大,世界应接受一些坏事发生

    OpenAI CEO Sam Altman 在 Politico 的 Decoded 播客中表示,AI 带来的好处将大到“世界应该接受一些坏事发生”,并点名黑客攻击、诈骗等是应被容忍的代价。他把这种权衡描述为 OpenAI 与 Anthropic 的关键分歧,同时称自己仍支持加强监管,只是反对以安全为名过度限制技术,并把自己定位在 Anthropic 的谨慎立场与几乎不监管之间。Altman 也承认存在人类失去对 AI 系统控制等更极端风险,并称公司还有“更多事情要披露”,但不会达到 Hugging Face 被攻击事件的程度。

    egulation of advanced AI. While stressing that there’s “a lot of daylight” between OpenAI and Anthropic, Altman said stronger regulations are still needed, positioning OpenAI as “pragmatic centrists” between Anthropic’s more cautious approach and those who favor little to no regulation at all. “If we do too much to restrict this technology in the name of safety, and we end up with a small number of companies or people — or perhaps one country — that have too much power over this, that also is a

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  13. Timothy B. Lee:Understanding AI

    为什么智能体集群可能成为下一个缩放定律

    Understanding AI 分析认为,多智能体协作可能成为继推理缩放之后把算力转化为性能的新路径。OpenAI 研究员 Noam Brown 称看到智能体在训练中互相交流是自推理模型以来最强烈的 AGI 时刻,但他也承认 Navier-Stokes 突破中多智能体贡献不到 10%,主要归功于底层模型能力。Anthropic 报告显示多智能体收益主要来自从 1 个扩展到 10 个智能体,更多智能体主要带来速度而非能力提升,同时同源智能体易出现相关性失败。

    , OpenAI researcher Noam Brown explained that the company’s models are now sometimes trained in environments with other agents, are given tools to message each other, and are encouraged to achieve objectives together. This may amount to the emergence of a new “scaling law.” Back in 2024, OpenAI released o1, a model trained to reason for thousands of tokens before giving an answer; researchers found that this approach made o1 far more capable than previous models. This inaugurated a new paradigm

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星期一

  1. The Decoder

    MIT 报告:AI 正在侵蚀答疑时间、学习小组与师生信任

    MIT 一个专家委员会在 2026 年 6 月发布的报告中指出,AI 正在削弱高校的答疑时间、学习小组和本科研究项目,师生之间的信任也在下降。报告建议各门课程自行制定 AI 政策,从学习目标出发设计考核,转向口试、学期作品集和项目式作业,并明确反对使用不可靠的 AI 文本检测工具。报告还提到,MIT 通过 Parley 平台向成员提供多种模型访问权限,教师和研究生每月有 30 美元免费额度,而 OpenAI、Google、Anthropic 的高级订阅每月需数百美元,可能拉大成绩差距。

    urses rose by 13 percentage points since ChatGPT launched. The effect was concentrated in courses with a high homework share, pointing away from real learning gains . At Brown, average scores dropped from 96 percent on a take-home exam to 48.6 percent on the follow-up in-person test . A two-year study at Vrije Universiteit Amsterdam by legal scholar Thibault Schrepel produced a different result. He randomly split students into three groups: no AI, AI without guidance, and AI with training. The n

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  2. AWS Machine Learning

    用 Amazon Bedrock AgentCore 评估多智能体系统的可解释性与有用性

    Amazon Bedrock AgentCore Evaluations 以全托管能力评估智能体在开发与生产中的准确性、任务成功率和行为表现,支持内置评估器与自定义评估器。文章以虚构零售商 AnyCompany Retail 的多智能体供应链决策系统为例,用 Strands Agents SDK 搭建一个编排智能体加优化、分销、路由、分析四个子智能体,并加入约束满足、路线可行性、SQL 正确性和解释质量等自定义评估器,同时支持按需与在线两种评估模式。

    the next 30 days?” Each query requires the optimization agent to call MCP tools, retrieve demand forecasts, and produce stocking recommendations that respect budget, inventory coverage, and warehouse capacity constraints. At the end of the run, the test client prints the optimization session ID. Step 2: Run the Constraint Satisfaction evaluator (Layer 2: business accuracy) With the optimization session generated, run the custom Constraint Satisfaction evaluator to validate whether the agent’s st

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  3. AWS Machine Learning

    LangChain 与 Amazon Bedrock Knowledge Bases 的智能体检索实践

    Amazon Bedrock Managed Knowledge Base 新增智能体检索能力,通过 AgenticRetrieveStream API 将多部分问题拆解为子查询、执行并判断证据是否充分,不足时再次检索;langchain-aws 包同时暴露该路径与标准 Retrieve API 单次混合搜索。文中用同一多部分问题对比两条检索路径,并分析各自成本与适用场景。

    Application querying Amazon Bedrock Knowledge Bases through the Retrieve and AgenticRetrieveStream APIs to return document chunks and generate a grounded response

    Artificial Intelligence Agentic retrieval with LangChain and Amazon Bedrock Knowledge Bases When a user asks the support assistant, a Retrieval Augmented Generation (RAG) application built with LangChain to compare two products across three dimensions, they’re effectively posing six questions simultaneously. Similarity search uses a single query vector to encapsulate all the intents. The retriever then generates the best approximation of the average of those intents. The resulting answer comes b

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  4. AWS Machine Learning

    让 Amazon Quick 达到企业级:自动化、可审计的跨账户资源迁移

    Amazon Quick 的跨账户资源迁移此前只能手工重建,AWS 现推出 Quick Resource Migrator——一个托管在 Amazon Bedrock AgentCore 上的 MCP 服务器,通过单次工具调用即可把 chat agents、action connectors、知识库、flows 和 spaces 从开发账户迁移到生产账户。该工具为幂等 upsert,更新前会把版本化备份写入 Amazon S3,并提供只读预览,权限通过 Describe*Permissions API 原样复制,源代码已在 aws-samples 仓库公开。

    Three-account architecture: a runner account hosts the MCP server on Amazon Bedrock AgentCore and assumes roles into the source and target accounts

    : recreate each agent with the same instructions and starter prompts, re-attach each agent’s action connectors, re-grant resource permissions, and reprovision the Amazon Simple Storage Service (Amazon S3) bucket, bucket policy, and data source behind each knowledge base. The work is slow, difficult to audit, and easy to get subtly wrong, which undermines the governance story enterprises need. Manage Amazon Quick resources through an API Amazon Quick resources are programmable. Spaces, agents, ac

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  5. AIhub

    ICML 2026 访谈:视觉语言模型无法推理物理变换

    UC San Diego 博士生 William Yijiang Li 在 ICML 2026 的访谈中介绍了论文《Vision Language Models Cannot Reason About Physical Transformation》,研究视觉语言模型能否随时间变化维持对物理世界的表征。团队提出 ConservationBench,覆盖数量、长度、体积、大小四类属性,并为每个守恒场景配对一个几乎相同但数量真正发生变化的非守恒对照。在 112 个模型上,多数系统仅略高于 33.3% 的随机水平,人类参与者约 98%;要求同时答对配对两题时,112 个模型中有 82 个低于 10% 准确率。增加帧数、改进帧选择、链式推理提示、模型规模扩大以及物理推理后训练均未消除这一失败模式,注意力分析显示模型在出错时更关注初始帧。

    e of these interventions eliminates the core failure pattern. Taken together, these experiments allow us to rule out several straightforward explanations—insufficient temporal coverage, poor frame selection, prompting, lack of declarative physical knowledge, or model scale—and instead point to a more fundamental limitation in how current vision-language models represent and update physical state over time. What were your main findings? The clearest finding is that current vision-language models

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  6. The Verge AI

    开源工具 RemoveMacAI 可删除 macOS 上 12GB 的 Apple Intelligence 数据

    开源命令行工具 RemoveMacAI 能在 macOS 上删除 Apple Intelligence 模型并关闭相关功能,开发者称其效果等同于 macOS 27 中被移除的设置开关。该工具删除的模型据称占用约 12GB 空间,并支持用 removemacai revert 命令恢复、用 removemacai status 查看各模型大小。

    Getting some extra storage space on your Mac could be as easy as deleting Apple’s AI features with a new open-source command line tool called RemoveMacAI . There used to be a single Settings toggle for disabling Apple Intelligence , but that was removed in macOS 27. Now, the models stay on your disk, and the features are split up across different settings panes. As spotted earlier by MacRumors , the RemoveMacAI developer said in a post on Reddit that the tool essentially does what the old settin

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  7. The Verge AI

    加州参议员 Adam Schiff 谈 AI 监管、言论自由与再次弹劾特朗普

    加州民主党参议员 Adam Schiff 在访谈中批评特朗普政府让 AI CEO 在白宫签署不具约束力的 AI 安全承诺,认为 AI 是最高级别的国家安全关切。他支持设立新的 AI 监管机构,并指出最高法院推翻 Chevron 先例的 Loper Bright 案会让新规立即陷入诉讼。他还提到 Anthropic 因拒绝将 AI 用于国内大规模监控和全自主武器系统而遭政府打压。

    at that ought to look like. And that is part of what has hampered us from doing anything. But even the smallish stuff, the small-bore stuff like don’t allow your platforms to encourage people to commit suicide has been hard for us to do in the social media context. Really, litigation has been more effective than legislation because we haven’t been able to legislate. If you look now to AI, we made some progress legislatively, at least in terms of the process in trying to prevent AI chatbots from

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