A key red flag in the AI sector is circular financing, where a company like NVIDIA invests in a startup that then uses the funds to purchase NVIDIA's products. This creates a closed loop that can artificially inflate revenue and demand metrics, a tactic reminiscent of the dot-com bubble.

Major cloud providers like Amazon are making multi-billion dollar investments in AI startups like Anthropic, which then commit to spending that money back on the provider's cloud services. This "circular" financial arrangement locks in future revenue and inflates growth metrics with non-organic activity.

Google Cloud's impressive growth is attributed to servicing the massive compute needs of Anthropic, a company it heavily invested in. This highlights a circular dynamic where cloud providers fund AI companies, which in turn become their captive, high-margin customers for GPUs and TPUs.

The AI ecosystem appears to have circular cash flows. For example, Microsoft invests billions in OpenAI, which then uses that money to pay Microsoft for compute services. This creates revenue for Microsoft while funding OpenAI, but it raises investor concerns about how much organic, external demand truly exists for these costly services.

While AI dramatically lowers the capital needed to build software, it creates a new significant expense: compute costs. Venture capital remains essential, but its purpose has shifted from funding initial development to covering substantial cloud and AI service bills as companies scale.

Gurley flags deals where tech giants invest in AI startups with credits for their own services. The startup's use of these credits is then booked as revenue by the investor. This practice inflates revenue without any actual cash changing hands, a tactic that was compared to Enron's accounting.

Profits from AI infrastructure (e.g., NVIDIA chips) can be misleading. The customer's purchase may be funded by a venture investment from the seller itself, making the revenue less recurring than it appears and complicating traditional valuation methods.

Massive investments, like Amazon's potential $50 billion into OpenAI, are not simple cash infusions. A large portion is structured as compute credits, meaning the money flows back to the investor's cloud services (e.g., AWS). This model secures a long-term, high-volume customer while financing the AI lab's operations.

Large tech firms invest in AI startups who then agree to spend that money on the investor's services. This creates a "circular" flow of cash that boosts the startup's perceived revenue and the tech giant's AI-related sales, creating questionable accounting.