Anthropic Closes $10-15B Funding Round at $350B Valuation, Nearly Doubling in Four Months

January 27, 2026 · by Fintool Agent

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Anthropic, the Claude AI developer, has closed its latest funding round above the initial $10 billion target at a staggering $350 billion valuation, CNBC confirmed Tuesday . The round, which landed between $10 billion and $15 billion, nearly doubles the company's valuation from just four months ago—making it one of the fastest valuation surges in tech history.

The financing was led by Coatue and Singapore sovereign wealth fund GIC, with Sequoia Capital also participating . Notably, Sequoia is also an investor in rival Openai, underscoring how the biggest venture firms are placing bets across all major AI foundation model players.

Oversubscribed by 6x

Investor demand for Anthropic has been extraordinary. One investor told the Financial Times that Anthropic saw as much as six times the interest it originally expected . The company was able to lock in as much as $15 billion as early as Tuesday, with the remainder potentially closing within weeks.

But the round could grow further still. Microsoft-0.74% (MSFT) and Nvidia-0.72% (NVDA) announced in November 2025 plans to invest up to $5 billion and $10 billion respectively in Anthropic . It's not yet clear if they'll participate in this latest round or commit additional capital separately.

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The Trillion-Dollar AI Race

The three leading AI foundation model companies—OpenAI, Anthropic, and xAI—now command over $1 trillion in combined valuation :

None are profitable. Yet capital continues to flood in.

"It is likely that the venture market is experiencing an AI bubble. The data checks most of the boxes," Kyle Stanford, PitchBook's head of research for the U.S. venture market, said in a recent report .

PitchBook data shows nearly two-thirds of venture capital deployed in the first nine months of 2025 went into AI companies . Foundation model companies have absorbed the bulk of that capital, turning AI into a scale-driven contest where only a handful of firms can realistically compete.

The Investor Constellation

Anthropic has assembled an unprecedented coalition of major technology companies as strategic investors:

Amazon-1.01% (AMZN): Up to $8 billion total investment, with portions converting from notes to equity . Amazon serves as Anthropic's primary cloud partner and makes Claude available to AWS customers. Amazon now values its stake at $13.8 billion.

Nvidia-0.72% (NVDA): Committed up to $10 billion as part of November 2025 partnership . NVIDIA helps optimize Anthropic's models for performance on its GPU architecture.

Microsoft-0.74% (MSFT): Committed up to $5 billion, with Anthropic pledging to purchase $30 billion of Azure compute capacity . This makes Claude available on all three major cloud platforms—AWS, Azure, and Google Cloud.

Google-0.07% (GOOGL): Invested roughly $3 billion and holds approximately 14% stake, though without voting rights or board seats . In October 2025, Anthropic announced a cloud partnership giving it access to up to one million of Google's custom TPUs.

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From $1B to $5B in Eight Months

Anthropic's financial trajectory has been nothing short of extraordinary. At the beginning of 2025, less than two years after launching Claude, Anthropic's run-rate revenue had grown to approximately $1 billion . By August 2025, just eight months later, run-rate revenue reached over $5 billion—making Anthropic one of the fastest-growing technology companies in history.

The company now serves over 300,000 business customers, and the number of large accounts—customers representing over $100,000 in run-rate revenue—has grown nearly 7x in the past year .

Claude Code, launched in full in May 2025, has been a particular bright spot. The AI coding assistant is already generating over $500 million in run-rate revenue with usage growing more than 10x in just three months .

What's Next

The funding will expand Anthropic's capacity to meet growing enterprise demand, deepen safety research, and support international expansion as it continues building what it calls "reliable, interpretable, and steerable AI systems."

For investors watching this space, several questions loom:

1. Profitability path: None of the major AI foundation model companies are profitable. Can they convert valuations into sustainable businesses?

2. Competitive moats: As models commoditize, will differentiation come from distribution, safety, or something else?

3. Public market implications: Amazon, Microsoft, NVIDIA, and Google all have significant exposure to Anthropic's success. Microsoft also has a 27% stake in OpenAI's new for-profit entity.

4. Next fundraising round: OpenAI is reportedly seeking investments from Middle East sovereign wealth funds for a round that could total $50 billion and potentially value the company at $750 billion .

The AI funding arms race shows no signs of slowing.

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Related Companies: Amazon-1.01% · Microsoft-0.74% · Nvidia-0.72% · Alphabet-0.07%