Anthropic's IPO reveals tangled AI investments with Google, Microsoft, and VC backers

Anthropic plans to list on Nasdaq under the ticker "ANT" via a Form S-1 filing, testing whether public investors share the private enthusiasm that drove its valuation to $965 billion after a $65 billion funding round in May. The AI company has committed to spending at least $110 billion with Amazon, $114.5 billion with Google, and $44.9 billion with Microsoft for cloud computing over the next seven to ten years, regardless of actual usage. Google, a major shareholder, is also identified as a direct competitor alongside OpenAI, while Microsoft backs both Anthropic and rival OpenAI. Venture capital firms including Sequoia Capital, ICONIQ, and Insight Partners hold stakes in both Anthropic and OpenAI, reflecting a shift from traditional single-company investment strategies. The IPO highlights how AI financing now intertwines investments, cloud contracts, and competitive relationships, with Anthropic dependent on a small group of infrastructure providers.