Menlo Ventures, an early backer of AI startup Anthropic, announces a $3 billion fundraise on Tuesday, June 23. The raise is the firm’s largest-ever, coming as it marks its 50th anniversary. Multiple outlets describe the campaign as heavily tied to Menlo’s earlier bet on Anthropic, which was positioned as an alternative to OpenAI at the time. Bloomberg reports that in 2024 Menlo took a “risky” step by raising $500 million to invest in Anthropic PBC when the company was still seeking mainstream adoption and had not yet produced meaningful revenue comparable to more established AI players. TechCrunch and The Next Web characterize the new fund as effectively built on that single Anthropic investment. PYMNTS similarly reports that the firm views Anthropic as promising even as products such as ChatGPT drew attention across the sector. Menlo’s move underscores the trend of major venture investors concentrating capital around high-performing AI startups, with the announcement presenting the funding as the latest outcome of its early commitment to Anthropic.