Anthropic, the AI startup founded in 2021 by former OpenAI members, is in early talks with investors to raise at least $30 billion in fresh financing, sources confirmed on May 15, 2026 [1, 2, 3, 4]. The funding round could value the company at over $900 billion, more than double its valuation three months ago of about $380 billion [1, 2, 3, 5, 4]. Bloomberg's Neil Campling described Anthropic as "in discussions to raise new capital at a valuation of more than $900 billion, not including the investment" [1].

Some reports indicate the total funds raised may reach as high as $50 billion, though sources describe this as less certain [5]. Investors Dragoneer, Greenoaks, Sequoia Capital, and Altimeter Capital have agreed to co-lead the round, each potentially contributing $2 billion or more [6, 4, 7]. The deal's terms could be finalized by the end of May 2026 [3, 5, 4, 8].

Anthropic commercialized its Claude AI model and has seen significant enterprise adoption. Mark Pike, Anthropic's Vice President of Legal Counsel, noted that "lawyers have become the second highest user group of Claude after software developers, indicating the legal market is shifting from trial to actual adoption" [8].

The company recently developed Mythos, an AI model specialized in detecting software security vulnerabilities, currently restricted to select organizations and government agencies [5]. Supporting its growth, Google has committed up to $40 billion and Amazon up to $25 billion for compute infrastructure expansion [5].

Anthropic warned investors about unauthorized secondary market trading of its shares, calling such activities "likely fraudulent" [5]. Industry analysts estimate Anthropic's annualized revenue could soon surpass $45 billion, though this figure remains unconfirmed [7].

The company is reportedly considering an initial public offering as early as October 2026 [5, 8]. Electric power supply and clean energy infrastructure are increasingly critical bottlenecks for AI data centers amid rising compute demand from firms like Anthropic [9, 10].

A final agreement on the funding round is expected by late May 2026, potentially paving the way for Anthropic's IPO plans later this year [3, 5, 4, 8].