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解剖国外AI三年:铲子为何跑赢应用?

解剖国外AI三年:铲子为何跑赢应用?
AI炒作已进入第三个年头,一个有趣的现象反复上演:每当市场喊出“应用为王”的口号,资金却总是不约而同地绕回硬件赛道。无论是A股的光模块,还是美股的电力设备,资金似乎对“铲子股”情有独钟。
在A股领域,应用方向有过上涨经历,但持续性不足,反而是上游硬件,当你以为降温降速不看好时,它们继续一枝独秀,到了你逐渐看不懂的局面。
这背后并非简单的抱团取暖,而是源于深刻的产业逻辑。本文将复盘过去三年美股AI牛市的五个阶段,并与二十年前的互联网泡沫进行对比,揭示为何本轮行情始终围绕“卖铲子”展开。

一、 资金迁徙:一场关于“瓶颈”的接力赛

从2022年底至今,美股AI行情并非简单的线性上涨,而是一场不断寻找“木桶最短那块板”的接力赛。

2023年:从“讲故事”到“拼算力”

行情伊始,市场带着互联网时代的肌肉记忆,猛炒C3.ai这类名字带AI的应用股。但这波行情极其短暂。

资金也迅速觉醒,在大模型混战期,没人知道谁会成为下一个Google,但所有人都知道,训练需要英伟达(NVDA)

这一年,超微电脑(SMCI)的暴涨极具代表性。它不是芯片公司,却是“把芯片变成生产力工具”的关键一环。这标志着市场逻辑的根本转变:从相信故事,转变为相信订单。

2024上半年:物理世界的反扑

当GPU堆砌到极限,物理世界的限制开始显现。

维谛技术(Vertiv)的崛起是一个信号。AI服务器功耗巨大,传统风冷失效,液冷和电源管理成为刚需。与此同时,Arista(ANET)填补了网络交换的空白。

这一阶段告诉市场:AI不是单纯的代码革命,而是一场极其耗电、极其依赖物理连接的基建狂潮

2024下半年:能源危机降临

“AI的尽头是电力。”这句口号背后,是资本市场的无奈。

当大模型从训练转向推理,Token(词元)消耗量呈指数级爆炸。资金恐慌地发现,电网扩容的速度远慢于算力堆叠的速度。

于是,资金疯狂涌入Vistra(VST)等电力股,甚至重新评估核电价值。这是AI行情第一次大规模“出圈”,从科技板块侵入了传统公用事业板块。

2025年:打破“内存墙”

Deepseek等低成本模型的爆发,意外引爆了推理需求。

市场突然意识到,GPU再强,如果数据喂不进去,就是一堆废铁HBM(高带宽内存)成为新的战略物资。存储不再是周期品,而是制约AI发展的关键咽喉。美光(MU)等存储巨头的股价表现,彻底击碎了“摩尔定律”的单一叙事。

2026上半年:回归全栈与系统

最新的阶段,焦点从单一硬件转向系统集成

戴尔(DELL)的逆袭极具讽刺意味:当AI进入企业级部署,客户需要的不是几千张显卡,而是一整套能跑起来的解决方案。同时,为了摆脱英伟达的高昂成本,巨头们自研ASIC芯片,带火了博通(AVGO)Marvell(MRVL)的互联业务。

至此,AI投资完成了从“点”(芯片)到“面”(数据中心)再到“网”(系统互联)的进化。


灵魂拷问:为什么没有“AI界的BAT”?

复盘三年,最大的疑问是:为什么AI没有像互联网那样,诞生统治级的应用平台?

供给侧革命VS需求侧革命

互联网是需求侧的革命。它创造了“网购”、“搜索”这些原本不存在的新场景,用户零成本迁移,因此爆发力极强,讲究“赢家通吃”。

AI是供给侧的技术革命。它不创造新场景,只是让写代码、做设计更高效。这种效率提升是渐进式的,且无法形成天然的垄断壁垒。既然无法垄断用户,资本就只能去垄断生产资料

边际成本的诅咒

互联网平台的护城河在于:边际成本趋近于零。多一个用户,成本几乎不增加,所以敢烧钱换增长。

AI应用恰恰相反:边际成本极高。每一个新增用户,都在消耗昂贵的算力和电力。对于投资人来说,一个增收不增利、甚至越增收越亏的行业,显然不如上游卖铲子的“印钞机”有吸引力。

缺乏网络效应

互联网的核心资产是数据网络。用户越多,产品越好用。

AI应用的核心资产是模型参数。一旦底层模型开源或升级,应用层的护城河随时可能被冲垮。这种技术上的“可替代性”,让应用端难以获得互联网时代那样的高估值溢价。


回到200年前的逻辑

如果我们把目光从1999年的互联网泡沫移开,投向更久远的历史,你会发现一个真相:

互联网是特例,AI才是常态。

19世纪的铁路革命,第一轮暴富的是卖钢铁、卖机车的卡内基;20世纪的电气化革命,第一轮爆发的是通用电气。只有当基础设施铺设完毕,且成本降到极低时,下游的应用(如福特汽车、家用电器)才会百花齐放。

现在的AI正处于“铺设铁轨”的阶段。

资金不敢赌应用,不是因为AI没用,而是因为基础设施的瓶颈尚未消除,商业模式的变现路径尚不清晰

对于当下的投资者而言,与其在变幻莫测的应用红海中猜测谁是最后的赢家,不如认清现实:在技术革命的早期,拥抱那些无论谁赢都必须支付的“硬通货”,才是穿越周期的唯一法则。

|END|

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  1. CONNECT:[ UseTime:0.001282s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001751s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000828s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000719s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001425s ]
  6. SELECT * FROM `set` [ RunTime:0.000541s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001601s ]
  8. SELECT * FROM `article` WHERE `id` = 725183 LIMIT 1 [ RunTime:0.001158s ]
  9. UPDATE `article` SET `lasttime` = 1780835812 WHERE `id` = 725183 [ RunTime:0.014677s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000730s ]
  11. SELECT * FROM `article` WHERE `id` < 725183 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001185s ]
  12. SELECT * FROM `article` WHERE `id` > 725183 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001139s ]
  13. SELECT * FROM `article` WHERE `id` < 725183 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.002671s ]
  14. SELECT * FROM `article` WHERE `id` < 725183 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002207s ]
  15. SELECT * FROM `article` WHERE `id` < 725183 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.041124s ]
0.250709s