Menlo Ventures closes $3B AI fund, largest in 50-year history, on Anthropic windfall
Menlo Ventures announced $3 billion in new capital across two funds on Tuesday—the largest fundraising haul in its 50-year history. The raise is split between Menlo Ventures XVII for seed and Series A rounds and Menlo Inflection IV for growth-stage investments at Series B and beyond, targeting AI infrastructure, frontier models, and AI-native applications across enterprise, healthcare, and consumer sectors.
The fund's momentum is powered by Menlo's early bet on Anthropic. The firm first invested in Anthropic in 2023 when the company was pre-product and pre-revenue, then led the Series D a year later. Menlo has now deployed roughly $500 million across multiple rounds in Anthropic, and that position is worth approximately $14 billion as Anthropic's valuation has soared to $965 billion.
Anthropic, founded by former OpenAI researchers including CEO Dario Amodei, last month overtook OpenAI as the highest-valued frontier lab and has filed plans for a 2026 IPO targeting a $1 trillion valuation, which would be the largest exit in Menlo's portfolio history. The venture firm's broader AI portfolio now includes Suno, Lovable, OpenRouter, Legora, Higgsfield, and others, built on the infrastructure insights gained from the Anthropic relationship.
For architects: this capital signals accelerating competition for growth-stage AI bets—Menlo is deliberately shifting from early-stage focus toward later-round follow-ons, expanding the pool of well-capitalized investors competing for Series B+ cheques. Anthropic's path to IPO and the valuation run could set a pricing floor for downstream AI infrastructure and app funding.
Sources
- Primary source
- techcrunch.com
“Menlo's stake in the model maker is now worth about $14 billion”
- bloomberg.com
“$3 billion for a set of funds dedicated to backing AI startups”
- menlovc.com
“Menlo was going ALL IN on AI”