Menlo bets $5.4B on Suno despite music copyright wars

Suno is a text-to-music platform launched less than three years ago that generates complete songs in seconds from a user's written prompt—no instruments, music theory, or production skills required. It has grown to over 100 million lifetime users, 2 million paying subscribers, and $300 million（約480億円） in annual recurring revenue, with 7 million tracks generated daily.

Menlo Ventures led a $400 million（約640億円） funding round in June at a $5.4 billion（約8600億円） valuation, more than doubling the company's value from a $250 million（約400億円） round seven months earlier. The lead investor, Amy Wu Martin, articulated an investment thesis centered on what she calls "single-player creation and consumption"—a behavioral shift where AI tools have lowered the effort and cost of making something so dramatically that people can now create purely for personal enjoyment, without needing to become a professional or build an audience. "Before, you needed to be paid, made, or laid in order to become a content creator," Wu Martin told Fortune. "Now I can one-shot something super easy and actually enjoy that for myself." She believes Suno is still early in this behavioral wave and that the company has grown 4x since Menlo's initial investment.

However, Suno operates under significant legal cloud. The music industry's trade group sued on behalf of Sony, Universal, and Warner in June 2024, alleging that Suno built its AI by training on copyrighted recordings without payment or licensing. Warner settled the suit in November 2025; Suno acquired Songkick, Warner's concert-discovery app, as part of the deal. Sony and Universal remain in active litigation. In the weeks before Suno's latest funding round closed, UMG and Sony filed to add over 61,000 more songs to their complaint, claiming court-ordered evidence disclosure revealed Suno had trained on "millions" of their tracks. Suno subsequently asked the court to block that amendment. Germany's music rights organization also has a pending ruling, now delayed to July 31.

When asked what would happen if Suno lost in court and was forced to pay the music industry a cut of its 7 million daily generated tracks—a model that Udio, Suno's main rival, reportedly agreed to—Wu Martin declined to directly address the scenario, saying only that "there's just a lot of conversations in the works." The unresolved financial and legal exposure stands in tension with Menlo's $5.4 billion（約8600億円） bet that the underlying behavioral shift toward casual, personal music creation is durable enough to survive copyright judgments and licensing costs.

Menlo Ventures' $5.4 billion（約8600億円） valuation of Suno represents a sharp wager that the music copyright disputes swirling around AI training will not destroy the platform's business model. The company's rapid ascent—from $2.7 billion（約4300億円） to $5.4 billion（約8600億円） in seven months—reflects investor confidence in the scale of its user base and revenue ($300 million（約480億円） in ARR across 2 million paid subscribers), yet it sits atop a legal minefield. Sony and Universal continue litigation and have moved to add over 61,000 additional songs to their complaint based on evidence they say shows Suno trained on "millions" of their tracks. Germany's music rights organization has a ruling pending until July 31. The only settled suit came from Warner, which accepted Suno's acquisition of Songkick as compensation—a precedent that cuts both ways: it shows Suno can negotiate, but it also suggests the music industry expects ongoing payment for use of copyrighted material.

Amy Wu Martin's public rationale—that AI has collapsed the cost of music creation to near-zero, allowing people to create purely for personal enjoyment rather than career advancement—is a genuine insight into user behavior. With 7 million tracks generated daily and 100 million lifetime users, the platform has demonstrated traction beyond hobbyists. But Wu Martin notably declined to engage when asked what happens if Suno loses in court and must pay the music industry a per-track royalty (the model Udio reportedly accepted). That silence is telling: the financial model's fragility is unresolved, and a forced-payment regime could threaten the unit economics that justify the $5.4 billion（約8600億円） bet.