Investor enthusiasm for Anthropic has intensified dramatically. The company behind the Claude AI assistant has received multiple unsolicited offers to secure approximately $50 billion in new funding, with valuations ranging between $850 billion and $900 billion, according to half a dozen sources familiar with the situation. Bloomberg and Business Insider reported earlier this month that Anthropic had received several preemptive bids at an $800 billion valuation, but at that time, the company had not yet decided to proceed with a fundraising effort. Sources indicate, however, that Anthropic is finding it challenging to resist the push to gather additional capital in what could be its last private fundraising round before a potential initial public offering.

The upcoming round is expected to total between $40 billion and $50 billion, according to people familiar with the company. Yet investor demand appears far greater, driven by the company’s rapid and sustained growth. Investors are eager to participate in the round. One institutional investor prepared to commit up to $5 billion has not yet secured a meeting with Anthropic CFO Krishna Rao, according to a source. Anthropic announced this month that its annual revenue run rate has surpassed $30 billion, a remarkable increase from roughly $9 billion at the end of 2025. The company’s current run rate is closer to $40 billion, according to one person with knowledge of its financials. Anthropic declined to comment.

A significant portion of this revenue stems from Anthropic’s AI coding capabilities, particularly through its Claude Code and Cowork platforms. Many investors believe the company is only beginning to tap its potential, given the vast opportunity to expand into new sectors such as finance, life sciences, and healthcare. Anthropic completed its last funding round in February at a $380 billion valuation. Also in February, OpenAI closed a record-breaking $122 billion round at an $852 billion post-money valuation.