Anthropic closes over $10B in funding round at $350B valuation as AI mega-rounds accelerate

Anthropic is no longer just part of the AI conversation. It is starting to dominate it.

The San Francisco–based company has closed its latest funding round above its original $10 billion target, landing somewhere between $10 billion and $15 billion at a staggering $350 billion valuation, CNBC confirmed Tuesday. The final figure may still climb. Microsoft and Nvidia have both discussed future participation, according to people familiar with the talks.

That valuation places Anthropic among the most valuable private technology companies on the planet, a sharp leap for a startup founded just four years ago by former OpenAI researchers. At the center of the company is CEO Dario Amodei, one of the most prominent figures to emerge from the early wave of large language model research.

“Anthropic has closed its latest funding round above the initial $10 billion target at a $350 billion valuation,” CNBC reported Tuesday. The round totaled between $10 billion and $15 billion, according to three people familiar with the discussions who requested anonymity due to the confidential nature of the deal.

Anthropic Secures $10B+ in New Funding at $350B Valuation With Coatue, GIC, and Sequoia Backing

The new financing follows a Reuters report last month that Anthropic was in talks to raise roughly $10 billion at a valuation of $350 billion. Those discussions moved quickly. Coatue and Singapore sovereign wealth fund GIC are leading the round, CNBC previously reported. Sequoia Capital is participating as well, even with an existing stake in rival OpenAI. The Financial Times first reported that the round was oversubscribed.

Investor interest tracks closely with Anthropic’s business performance. Amodei told CNBC earlier this month that the company generated close to $10 billion in revenue last year. That number reflects strong demand from enterprise customers, particularly developers building internal tools, coding assistants, and AI-powered workflows around Anthropic’s Claude models.

Claude has quietly become a favorite across engineering teams, especially after the recent rise of Claude Code, which has gained traction as a serious alternative to developer tools from OpenAI and GitHub. Reuters reported in October that Anthropic expects to more than double, and potentially nearly triple, its annualized revenue run rate this year as enterprise adoption continues.

Strategic backing has shaped Anthropic’s ascent. Google and Amazon both count as major partners, each seeking long-term access to Anthropic’s models as cloud providers race to lock in differentiated AI infrastructure. Separate reporting from the Financial Times suggests that Microsoft and Nvidia may participate in future private commitments that could push Anthropic’s valuation even higher.

Anthropic stands out for another reason. It operates as one of the few AI labs capable of training trillion-parameter systems using its own data center infrastructure. That capability has become a key bargaining chip as demand for advanced models collides with limited compute supply. Since its earliest days, the company has drawn billions from partners eager to secure guaranteed access to large-scale AI systems.

The size of this round speaks to a broader pattern across enterprise AI. Spending continues to surge. Valuations have followed. Investors remain divided behind closed doors on how long this pace can hold. For now, capital keeps flowing toward teams that control models, compute, and distribution at scale.

For Anthropic, the message is clear. Confidence remains high. Demand shows little sign of slowing. The window for mega-rounds in AI has not closed yet.