As AI startup Anthropic prepares for a public debut, Amazon's early investment strategy via convertible notes has led to a significant valuation increase. The arrangement also locks in long-term cloud revenue for Amazon, though the relationship faces potential competitive friction.
Amazon is positioned to see substantial financial gains as artificial intelligence startup Anthropic moves toward a public offering. The e-commerce giant’s involvement with Anthropic goes beyond simple share ownership, relying on a structure that combines debt-like instruments and strategic infrastructure commitments. This approach has allowed Amazon to secure a significant financial footprint that differentiates its position from traditional venture capital investors.
At the core of this financial setup are convertible notes. These are essentially loans that can be converted into company shares. Amazon held $6.2 billion in principal in these notes as of June 30. Due to a rapid rise in Anthropic’s private valuation—which has been reported as reaching approximately $965 billion in recent filings—the fair value of Amazon's note holdings has surged to roughly $97.9 billion. The significant jump in value forced Anthropic to record a $72.4 billion non-cash charge on its income statement for the first half of 2026, highlighting the scale of the gain attached to Amazon's conversion rights.
Beyond equity appreciation, the deal includes a long-term revenue strategy. Anthropic has committed to spending at least $110 billion on Amazon Web Services over the next decade. A similar structure is in place with Google, which maintains a significant stake in the startup alongside a $114 billion cloud service commitment through 2033. This creates a dual-benefit model: these tech giants stand to profit from the growth of the startup’s valuation while simultaneously acting as the essential infrastructure providers for the AI models they helped finance.
Despite these advantages, the arrangement carries inherent complexity. Anthropic’s S-1 filing notes that its primary cloud partners—Amazon and Google—are also developing their own competing AI models. This creates a difficult governance environment. Because the investors are also competitors, the long-term interests of the corporate stakeholders may diverge from those of the startup, potentially creating operational tensions. Investors monitoring the upcoming public offering may want to watch how Anthropic manages this dual role of cloud partner and rival, as well as how these large-scale infrastructure commitments impact the startup's future profitability.