Marissa Mayer's Dazzle bets your camera roll beats your inbox

Mayer’s new venture raised an $8 million seed round last December, and comes amid a wave of personal AI assistants including Meta’s Muse and Instinct. But where those tools build context from text-heavy apps like email, calendars, and shopping histories, Dazzle gets its context from a single source: a user’s photos. “I think that photos are an underappreciated source of information,” Mayer said. “You’ll be surprised what we can learn about you and how good a job we can do with your photos.”

By analyzing photos stored on a phone, Dazzle claims to understand a user’s hobbies, interests, food and style preferences, how they like to spend their time, and with whom. “We understand whether or not you like to ski, where your most recent trip was, what types of things your kids are into,” Mayer said.

It’s not Mayer’s first photo-centric bet. Her previous startup, Sunshine, launched an AI-powered photo-sharing tool called Shine in 2024 that was widely criticized for its outdated design, failed to attract widespread usage, and eventually shut down — though Mayer says it nevertheless built “interesting IP.”

Dazzle, which users can interact with through its app or via text, splits its functionality into two experiences. For immediate tasks, it can scan recent photos to pull details, like populating a calendar from an event flyer or finding a repairperson after spotting a broken garage door in a camera roll. Second, it mines a user’s photo library to generate personalized ideas, from holiday vacations to birthday gifts. Mayer said she uses Dazzle to brainstorm family outings; by scanning her photos, the assistant deduced that her family loves escape rooms and suggested several Bay Area locations she’d never heard of.

In a hands-on test, TechCrunch found the assistant suggested several Mediterranean vacation spots, likely picking up on past trips to Spain and Greece, but also unexpectedly suggested Sicily, visited four years earlier. The tool also had blind spots, failing to recall that a reporter’s daughter already knew how to roller skate when asked whether to buy her a pair for her next birthday. Despite the hiccups, the reviewer said they appreciated Dazzle’s activity suggestions, including a local pottery studio and a bioluminescent kayak tour in Tomales Bay.

Mayer contends that given security concerns around tools like Instinct and Muse, users may feel more comfortable handing over their photo libraries to an AI than granting it access to sensitive data like emails and messages. She said Dazzle prioritizes privacy and discards any personal information the AI flags as sensitive.

Why it matters

Dazzle’s bet that photos, not text, are the richer signal for personal AI context could reshape how personal-assistant startups compete on privacy, since camera-roll access reads as less invasive to users than email or messaging access, even though it can reveal just as much.