美国何时成为 token 净进口国
When Does the US Become a Net Importer of Tokens?
- 1作者测算美国将在 2028 到 2030 年间转为 token 净进口国,类似稀土的净进口地位
- 2若 45% 规划数据中心未能并网,净进口 2028 年出现;取消率降到 20% 推迟到 2029 年
- 3过去两个季度短期 GPU 租金从每小时 5 美元涨到 13 美元以上,Anthropic 溢价签下数十亿算力
- 4现有系统加新数据中心可支撑约 2.5 倍年 token 增长,能效以每年约 2.9 倍复合提升
AI 增长的约束正从数据、算法和 GPU 产能转向美国本土的电力与数据中心建设,算力开始呈现稀土式的进口依赖风险。
- 影响:GPU 租金已从每小时 5 美元涨到 13 美元以上而需求未回落,重度使用 AI 的企业成本会随供给吃紧继续上行;数据中心在数量、能耗与选址上的限制会改变算力供应格局,token 可能转由海外生产再进口。
- 参考:可考虑按当前租金的三倍压力测试 AI 项目预算;值得盘点哪些工作负载可用突发算力、更高能效的新芯片或海外供给承接,并跟踪规划中本土数据中心的并网进度。
- 依据:核心测算来自作者自述的粗略基础模型,假设仅 55% 规划产能按期落地;租金数据引用 Anthropic S-1/A 披露与 Ornn Compute Index,能效数据引用 SemiAnalysis InferenceX。
With AI demand outpacing supply, & domestic data center construction slowing, soon the US will consume more tokens than it produces.
At that point, the US will become a net importer of tokens, just like it is a net importer of rare earth metals. A basic model estimates this switch between 2028 & 2030, depending on how many planned facilities get cancelled.
Very roughly, the current systems, with new data centers coming online, can manage 2.5x annual token growth1. Above that rate, chip & model efficiency gains can no longer offset domestic demand growth:
$$\text{Power Required (GW)} = \frac{\text{Tokens Demanded}}{\text{Tokens per Watt}}$$
If 45% of planned projects fail to connect, imports start by 2028. Cut cancellations to 20%, & the deadline slips to 2029. Even if every proposed facility gets built on time, the gap still opens by 20302.
Every physical model assumes the price of compute stays constant. In reality, when supply chokes, prices spike. So far, demand has proven remarkably price-inelastic. Over the past two quarters, short-term GPU rental prices surged from $5 to more than $13 per hour3, Anthropic signed billions in burst compute at premium rates, & overall demand barely blinked. Buyers simply paid the toll.
At what price do people balk? Is it the model labs burning through capital to pre-train the next frontier? The enterprises financing vibe-coding teams that burn hundreds of millions of tokens a week building custom apps? Or consumers asked to pay $40 a month for an autonomous agent subscription?
Surely there is some price at which demand will slow & current data center capacity will suffice. But throttling demand through scarcity pricing denies the basic market reality : at a lower cost of production, demand would be orders of magnitude higher. If we do not build the domestic power and facilities to satisfy that demand, tokens will simply be produced elsewhere & imported.
The uninhibited growth since GPT 3.5 will be modulated not by lack of access to data, nor algorithmic limits, nor GPU manufacturing speed, but by the broader values of the country. The forthcoming limits on the quantity, size, electrical consumption, & location of data centers will reshape Startupland.
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Demand grows from a 66gw base in 2027, up 61% from 41gw (Goldman Sachs Commodities Research, Wei, Struyven & Dart, May 20, 2026. US data center power 31gw / 41gw / 66gw for 2025 / 2026 / 2027). Efficiency is the counterweight. Tokens per watt compounds about 2.9x a year, blending NVIDIA’s Vera Rubin at 5.4x over GB300, Google’s Ironwood at 2x Trillium & AWS’s Trainium3 at 4x Trainium2 (SemiAnalysis InferenceX, 2026 : Vera Rubin 5.4x GB300 on tokens per watt. NVIDIA claims up to 10x on agentic workloads. Google TPU Ironwood 2x Trillium. AWS Trainium3 4x Trainium2). Supply is the third input, & only 55% of scheduled US capacity lands on time. ↩︎
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The chart is a capacity date, not an economic one. Power is only 5% of the cost of a GPU-hour ; capital recovery is 64%. A $40/mwh spread is worth $0.35b per gigawatt per year, while a 6%-to-9% cost of capital spread is worth $0.84b. Capital wins. Latency finishes the argument : New York to Frankfurt round-trips in 88ms. Behind-the-meter generation covers much of the shortfall, so the real constraint becomes gas turbines, sold out into 2030 (SemiAnalysis, June 25, 2026 ; GE Vernova, July 22, 2026). ↩︎
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Tomasz Tunguz, The Financial Engineering Essential for AI in 2027, November 3, 2026, analyzing Anthropic’s Form S-1/A disclosures on short-term burst compute surges to $12–$13/GPU-hour (up from $3–$5 six months earlier) and long-term compute commitments. The Ornn Compute Index settled at $12.29/GPU-hour in October 2026. ↩︎
来源:Tomasz Tunguz 博客 · tomtunguz.com