AI giant Anthropic has closed a $13 billion Series F round, nearly tripling its valuation to an eye-watering $183 billion in just six months. The funding, led by ICONIQ, is meant to fuel the company's enterprise growth and safety research as it scales its AI models.
- By the numbers: In a blog post detailing the deal, Anthropic revealed its run-rate revenue has skyrocketed from roughly $1 billion to over $5 billion in the first eight months of 2025. This growth is powered by its developer tool, Claude Code, which now pulls in over $500 million in run-rate revenue, and a customer base of over 300,000 businesses.
- Confidence and copyright: Lead investor ICONIQ framed the deal as a bet on the company’s ability to "shape the future of responsible AI," echoing confidence in Anthropic's safety-first approach. However, that confidence comes as the company navigates serious legal challenges, having recently settled a class-action copyright suit from authors and now facing another from major music publishers.
Anthropic is now armed with one of the largest funding rounds in AI history to compete with its rivals, but its massive valuation will be tested by the unresolved and costly legal questions surrounding how its models are trained. The ethics behind raising such enormous sums are under scrutiny, with reports noting CEO Dario Amodei's reluctance to take money from certain sovereign wealth funds. This investment frenzy continues amid staggering competitor valuations and broader questions about the technology's actual ROI, with one recent MIT study suggesting most enterprise GenAI projects are generating zero return.