535B 大模型全程直播训练：Percy Liang 打开训练「黑箱」
斯坦福教授 Percy Liang 公开训练 535B MoE 大模型，直播 loss 曲线、数据配比与工程日志，前沿训练不再是黑箱。
Open LLM Training: Watch a 535B Model Train Live
Percy Liang trains a 535B MoE fully in public: live loss curves, data mix and a scaling-ladder playbook. Frontier training stops being a black box.
Claude Solves 78-Year S⁶ Problem: Complex Structure Found
An AI-assisted proof constructs a complex structure on the six-sphere, ending a 1948 math problem that felled even a Fields medalist.
Claude 终结 78 年悬案：S⁶ 复结构被构造，AI 数学从「找答案」走向「造答案」
哈佛数学家 Levent Alpöge 与 Claude 联手构造出六维球面 S⁶ 上的复结构，终结自 1948 年起悬置 78 年的难题——这是 35 天内 AI 数学的第三项重大突破。
Nvidia's $6B Poolside Deal: Entering the Open-Weight War
Nvidia pays $6B to license Poolside's Model Factory, hires 109 engineers, and invests $1B — a soft acquisition aimed at a trillion-parameter open model.
英伟达 60 亿美元下场开源大模型：Nemotron 4 冲击万亿参数
英伟达拟以 60 亿美元授权 Poolside 的 Model Factory 并招揽 109 名工程师，冲击万亿参数开源模型 Nemotron 4：卖铲人开始亲自挖金矿，中立供应商时代结束。
HuggingFace 传出 130 亿美元出售：AI 开发者入口成新战场
全球最大开源 AI 平台 HuggingFace 传出以超 130 亿美元估值寻求出售，AI 资本的争夺焦点正从模型冠军转向开发者入口。
HuggingFace Sale Talks at $13B: AI's Developer Gateway
HuggingFace, the GitHub of AI, is exploring a $13B sale. AI capital is shifting from frontier-model bets to the gateways developers pass through.
Build an Actor-Critic Causal Inference Agent
Netflix open-sourced oci-agent: an actor-critic agentic loop that runs observational causal inference inside templated notebooks, with a critic auditing every result.
Netflix 开源 oci-agent：用 actor-critic 双智能体自动跑因果推断
Netflix 开源 oci-agent：actor 写模板 notebook 跑分析、critic 审结果提修改，闭环迭代直到报告通过。因果分析的苦活从此可以自动化。
Agent 运行时之战：OpenAI 与 DeepSeek 都开放了 Harness
OpenAI 把 Codex 定义为开放 Agent Harness，DeepSeek 开源 DSH 五天拿下 17 万 Star——模型战争正下沉到执行层。
Agent Runtime War: OpenAI vs DeepSeek Open Harnesses
OpenAI now sells Codex as an open agent harness; DeepSeek DSH hit 173k stars in days. The AI battleground moved down to the runtime layer.