A growing number of leading investors are warning that artificial intelligence (AI) startup valuations are overheating, with early-stage funding rounds reaching unsustainable levels amid a global rush to back the next OpenAI.
Speaking at the Milken Institute Asia Summit 2025 in Singapore, Bryan Yeo, chief investment officer of Singapore’s sovereign wealth fund GIC, cautioned that the early-stage AI market is showing signs of “hype-driven froth.”
“There’s a little bit of a hype bubble going on in the early-stage venture space,” Yeo said. “Any startup with an ‘AI’ label gets valued at massive multiples of its tiny revenue. That might be fair for some, but probably not for most.”
According to PitchBook, AI startups raised $73.1 billion globally in the first quarter of 2025, accounting for nearly 58% of all venture capital investment. The surge has been fueled by megadeals such as OpenAI’s $40 billion capital raise, as investors race to secure a stake in the sector’s perceived future winners.
Yeo warned that “market expectations could be way ahead of what the technology can deliver,” adding that the ongoing AI capital expenditure boom may be masking economic vulnerabilities beneath the surface.
Todd Sisitsky, president of private equity firm TPG, echoed Yeo’s concerns, describing the fear of missing out (FOMO) as a dangerous force driving irrational valuations. “Some AI firms are hitting $100 million in revenue within months,” he said, “while others—still in early stages—are valued between $400 million and $1.2 billion per employee. That’s breathtaking.”
The warnings reflect growing unease among veteran investors who have seen similar speculative waves—from dot-com mania in the 1990s to crypto exuberance in the 2020s—inflate asset prices far beyond their underlying value.
Still, opinions remain divided on whether the AI sector has already formed a full-blown bubble or is simply experiencing the natural excesses of a transformative technology boom.
What’s clear is that AI’s gravitational pull on global capital continues to intensify, reshaping investment priorities and heightening the risk that innovation and speculation will soon collide.