Anthropic PBC raised $65 billion [1] in a private funding round on Thursday, May 28, 2026, reaching a post-money valuation of $965 billion [1].

This valuation exceeds that of OpenAI, signaling a shift in the competitive landscape of generative artificial intelligence. The massive influx of capital allows Anthropic to scale its infrastructure at a time when the demand for large language models is surging globally.

The fundraising round was led by several U.S. venture firms, including Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital [2]. Anthropic intends to use the funds to bolster computing capacity for its Claude chatbot and expand its overall product offerings [3].

Founded in 2021 [4] by former OpenAI employees, the company has grown rapidly over the last five years [5]. The company's financial growth is reflected in its reported annualized revenue of $47 billion [6].

The surge in valuation underscores the intense capital requirements of the AI industry. To maintain the performance and reliability of Claude, the company requires immense amounts of specialized hardware and energy, costs that necessitate multi-billion dollar infusions.

This latest round places Anthropic within reach of a $1 trillion valuation, a milestone rarely achieved by private companies in such a short timeframe. The company continues to position itself as a primary competitor to OpenAI by focusing on the scaling and safety of its AI models.

“Anthropic raised $65 billion in a private funding round”

The valuation flip between Anthropic and OpenAI highlights the extreme capital intensity of the AI race. By securing $65 billion, Anthropic is not just funding software development but is effectively purchasing the massive computing power required to train next-generation models. This suggests that the barrier to entry for top-tier AI development is now measured in hundreds of billions of dollars, favoring a small group of firms with elite venture backing.