Menlo Ventures Lands $3B, Its Largest Fund, on an Anthropic Bet

The headline number is $3 billion, but the more revealing figure is the one sitting behind it. According to Bloomberg, Menlo Ventures has closed its largest-ever fundraising haul, bringing in $3 billion for a set of funds dedicated to AI startups. The fuel for that raise is a single position: Menlo's stake in Anthropic, built up through an additional $500 million in investments across several rounds, is now reportedly worth nearly $14 billion, as Anthropic's valuation has soared to more than $900 billion.

Menlo managing partner Shawn Carolan reportedly called the original Anthropic investment a "bet-the-firm moment," and from the outside it reads exactly that way. A firm historically focused on backing newer startups made a concentrated bet on AI infrastructure and it has reshaped the firm's profile entirely, helping, as the reporting describes it, to supercharge Menlo's clout and investing activity.

The honest caveat is that nearly $14 billion is a paper figure tied to a private valuation above $900 billion. Menlo has not yet distributed those gains to LPs, and the path from paper to cash runs through either an IPO or secondary sales at a moment when AI valuations are historically elevated. The reporting does not detail how the $3 billion is split between Anthropic follow-ons and new bets, what the fund's return timeline looks like, or when Menlo expects to realize the position.

What the close does confirm is a strategic shift. Menlo says it intends to pursue more later-stage bets of the kind it made in Anthropic, expanding beyond its traditional early-stage identity. For growth-stage AI companies, that means another well-capitalized firm now competing for the larger checks that crossover and growth funds have historically owned.