Anthropic Surpasses OpenAI as the Most Valuable AI Startup
Published on: May 29, 2026
On May 28, 2026, Anthropic announced a successful Series H funding round in which it secured $65 billion. This investment catapulted the company’s valuation to approximately $965 billion, overtaking its primary rival, OpenAI, to become the world’s most valuable artificial intelligence startup. The surge underscores the escalating financial stakes in frontier AI development and competition among leading model providers.
This valuation marks a sharp climb from Anthropic’s previous funding rounds. In February’s Series G, the company was valued at $380 billion after raising $30 billion; similarly, in September’s Series F round, it held a $183 billion valuation post-raising $13 billion. This rapid escalation reflects intensifying investor confidence in Anthropic’s technology and market positioning.
In parallel, reports on the same day revealed that Apollo Global Management and Blackstone are arranging about $36 billion in debt financing for Anthropic. This debt is intended to fund the acquisition of custom tensor processing units—specialized AI chips—from Google, with Broadcom acting as a backstop. The financing is expected to close soon and would support Anthropic’s infrastructure expansion to meet growing demand for compute power.
Taken together, Anthropic’s new equity valuation and the parallel debt arrangement illustrate how AI startups are leveraging both equity and debt to scale. The combination allows rapid scaling of compute infrastructure without immediately diluting ownership, while signaling confidence from both equity and credit markets in Anthropic’s strategic direction.
This development also reflects broader trends in the AI industry, where compute access and infrastructure control have become as critical as model performance. As companies race to deploy larger and more capable models, securing bespoke compute capacity becomes a competitive advantage—and Anthropic appears to be betting heavily on owning that infrastructure.
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