5 minBusiness
Marissa Mayer Says AI's Future Is Uncertain and the Industry Shares Blame for Public Backlash
At Fortune's Most Powerful Women Summit, former Yahoo CEO Marissa Mayer said no one can predict how AI will develop, estimated the odds of a negative outcome at well under 50%, and acknowledged that the tech industry's early messaging was too cavalier. She also introduced Dazzle, her new personal AI assistant built on photos from a user's phone.
Marissa Mayer, the former Yahoo chief executive and one of Silicon Valley's most prominent builders, said the future of artificial intelligence is fundamentally unknowable and that the industry itself bears responsibility for growing public skepticism toward the technology.
Speaking on stage with Fortune executive editorial director Diane Brady at the annual Most Powerful Women Summit in California, Mayer was asked about the intensifying debate over frontier AI labs. Her answer was blunt. «We have a new form of intelligence, and anyone who says they know how this is going to play out is either lying or arrogant or both,» she said.
Mayer said the uncertainty runs in both directions. «We have to acknowledge that there is a possibility that things won't go well,» she said, while putting the odds of a negative outcome at «well less than 50%.» She noted that even some people who warn about existential AI risks would agree with that assessment. «What that really means is the odds are in our favor,» she said, pointing to potential breakthroughs in medicine and science and to the prospect of «freeing people up to spend their time and live their lives the way they want to.»
Mayer described herself as an optimist but said she welcomes discussions about regulation and collaboration among frontier labs as the technology advances. She also acknowledged that public sentiment in the United States has turned against AI and said the industry probably deserves part of the blame. The early positioning of the technology was «perhaps too cavalier,» she said, leaving people to wonder what the enterprise-level embrace of AI will mean for jobs, families and children's futures. «I personally think it can make all three of those things better,» she told Brady.
Mayer's career has given her a long view of the technology industry. She joined Google as an early engineer and became one of its most visible executives before taking over Yahoo as CEO in 2012, when she became the youngest woman to lead a Fortune 500 company. Her tenure drew intense scrutiny, including her decision to take a short maternity leave. Looking back, Mayer said observers missed important context. «Yahoo couldn't afford to have a CEO who was out for three or six months,» she said. She left the company after the sale of Yahoo's core assets and real estate to Verizon for $4.8 billion in 2017.
After Yahoo, Mayer founded the contacts and photo-sharing startup Sunshine, which she wound down in 2025 and sold to Dazzle AI. That new venture raised $8 million in a seed round at a $35 million valuation and formally announced its launch on September 29. Dazzle is a personal AI assistant that learns from the photos on a user's phone, Mayer said.
The idea grew out of her work at Sunshine, where Mayer's team concluded that about 60% of a typical camera roll is worth sharing. The other 40%, she said, is «all the stuff we need to get done» — appointment cards from the dentist's office, or photos of children's cleats taken as a reminder to buy a larger size. Dazzle pairs that context with human and AI agents that can act on it, creating what Mayer described as a to-do list «that gets itself done.»
«If I had to be your personal assistant for a week — booking travel, buying gifts, buying clothes, keeping track of kids' schedules — I'd ask for your camera roll,» she said.
On privacy, Mayer said users can grant Dazzle full, partial or no access to their photos, and that sensitive images are immediately discarded. The product is currently invite-only. Eventually, Mayer said, the company will charge subscription fees, transaction fees or both, while keeping a free tier.
One early pattern Mayer called a surprise, though perhaps not a shocking one, is that Dazzle's first adopters are men. She said she hopes the product, and AI more broadly, will find a home with women. «I hope that there's more women that are inspired to actually build,» she said. «I think it's really important for us to have a voice in how AI develops.»
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