AI日报20250815｜从铁轨到浏览器：AI的硬核升级与戏剧冲突

今日要闻铁路经验数字化：商汤科技与铁一院用 AI 搭建铁路勘察智能知识库，避免经验断层，自动查资料、写报告。提示词优化神器：火山引擎升级 PromptPilot，支持任意模型、公私云部署，还能结合知识库提升垂直领域精度。马斯克怼苹果：指责 App Store 偏袒 ChatGPT 打压 Grok，称要走法律程序，反垄断或成焦点。AI 有了记忆：亚马逊新服务让智能体分短期与长期记住对话与偏好，开发者零成本接入。资本狂飙：全球 AI 独角兽总估值超谷歌，百家企业成立不到两年，旧金山成热土但泡沫隐忧加剧。行业动态多模型时代：2025 年用户平均用 4.7 个大模型，硬件高度集中于英伟达，国产模型出海受制于数据信任。机器人突破路径：宇树 CEO 认为视频驱动训练或比 VLA 更快见效，通用型机器人或 2-5 年内迎来“ChatGPT 时刻”。AI 应用情感比性能重要：用户嫌 GPT-5 太机械，OpenAI 重上 GPT-4，提示行业需平衡效率与人性化互动。收购 Chrome 震撼弹：Perplexity 出价 345 亿美元想买谷歌浏览器，虽无悬念被拒，但话题效应拉满。

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