Instead of bearing the full cost and risk of building new AI data centers, large cloud providers like Microsoft use CoreWeave for 'overflow' compute. This allows them to meet surges in customer demand without committing capital to assets that depreciate quickly and may become competitors' infrastructure in the long run.
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While high capex is often seen as a negative, for giants like Alphabet and Microsoft, it functions as a powerful moat in the AI race. The sheer scale of spending—tens of billions annually—is something most companies cannot afford, effectively limiting the field of viable competitors.
By funding and backstopping CoreWeave, which exclusively uses its GPUs, NVIDIA establishes its hardware as the default for the AI cloud. This gives NVIDIA leverage over major customers like Microsoft and Amazon, who are developing their own chips. It makes switching to proprietary silicon more difficult, creating a competitive moat based on market structure, not just technology.
The vast network of consumer devices represents a massive, underutilized compute resource. Companies like Apple and Tesla can leverage these devices for AI workloads when they're idle, creating a virtual cloud where users have already paid for the hardware (CapEx).
NVIDIA promised to buy any of CoreWeave's unused cloud service availability. This unusual arrangement, while helping CoreWeave secure debt financing, makes it difficult for investors to gauge real, organic market demand for its services, potentially hiding early signs of a market slowdown.
Large tech companies are creating SPVs—separate legal entities—to build data centers. This strategy allows them to take on significant debt for AI infrastructure projects without that debt appearing on the parent company's balance sheet. This protects their pristine credit ratings, enabling them to borrow money more cheaply for other ventures.
Satya Nadella reveals that Microsoft prioritizes building a flexible, "fungible" cloud infrastructure over catering to every demand of its largest AI customer, OpenAI. This involves strategically denying requests for massive, dedicated data centers to ensure capacity remains balanced for other customers and Microsoft's own high-margin products.
Satya Nadella clarifies that the primary constraint on scaling AI compute is not the availability of GPUs, but the lack of power and physical data center infrastructure ("warm shelves") to install them. This highlights a critical, often overlooked dependency in the AI race: energy and real estate development speed.
NVIDIA is not just a supplier and investor in CoreWeave; it also acts as a financial backstop. By guaranteeing it will purchase any of CoreWeave's excess, unsold GPU compute, NVIDIA de-risks the business for lenders and investors, ensuring bills get paid even if demand from customers like OpenAI falters.
The AI infrastructure boom is a potential house of cards. A single dollar of end-user revenue paid to a company like OpenAI can become $8 of "seeming revenue" as it cascades through the value chain to Microsoft, CoreWeave, and NVIDIA, supporting an unsustainable $100 of equity market value.
Companies like CoreWeave collateralize massive loans with NVIDIA GPUs to fund their build-out. This creates a critical timeline problem: the industry must generate highly profitable AI workloads before the GPUs, which have a limited lifespan and depreciate quickly, wear out. The business model fails if valuable applications don't scale fast enough.