Marissa Mayer's Dazzle reads your photos, not your email

Dazzle arrives into a crowded field. Over the past month, Meta's Muse, Instinct, and a wave of similar assistants have flooded the market, which is why the question of copycatting came up before Mayer's demo. Her answer is a difference in source material: most assistants build context from text-heavy apps like email, calendars and shopping histories, while Dazzle takes everything from a single place — the pictures already sitting on your phone.

Mayer is not new to photos. Her previous startup, Sunshine, launched an AI-powered photo-sharing tool called Shine in 2024; it was widely criticized for its outdated design, failed to attract widespread usage, and eventually shut down. Mayer says it nevertheless built "interesting IP," and Dazzle reads as a second pass at the same raw material with a different product shape.

The demo showed both promise and blind spots. It surfaced Mediterranean suggestions that seemed to track past trips to Spain and Greece, but also proposed Sicily from a trip four years ago, and it failed to remember a daughter already knows how to roller skate. Mayer's privacy pitch — that Dazzle discards any personal information the AI flags as sensitive — is likely to be the deciding factor for users weighing whether to hand over their photo libraries instead of granting access to emails and messages. Whether Dazzle closes its accuracy gaps while keeping those libraries private is the open question.