Google Cloud's fast-growing business may be resting on an unusually narrow base. According to a report from ppc.land, circulated via Google News, Google Cloud faces a 48% revenue reliance on OpenAI and Anthropic by 2027 — meaning close to half of the unit's revenue would be tied to just two artificial intelligence companies.
That single figure is the core of the story, and it is worth stating plainly what the source does and does not say. The ppc.land report frames the 48% as a forward-looking projection for 2027, not a description of Google Cloud's revenue mix today. No breakdown between the two customers, no underlying contract terms, and no response from Google, OpenAI, or Anthropic appears in the source material available here.
Still, the number lands on a nerve that investors have been probing all year. Cloud revenue has historically been prized precisely because it is diversified: thousands of businesses paying recurring bills, none of them large enough to sink the quarter if they leave. Revenue concentrated in a small number of very large AI customers behaves differently. It grows faster on the way up, and it is more exposed to any change in those customers' spending plans, funding conditions, or decisions about where to buy computing capacity.
For readers watching Alphabet's stock, that is the practical question the ppc.land figure raises — whether the AI buildout is a broad new business line or a concentrated bet on two counterparties.
Why it matters: when nearly half a major cloud business depends on two customers, the health of those customers becomes the health of the business.