"Millions of Meta AIs are living fake lives": we checked the paper behind the viral Reddit post
A post claiming Meta makes AIs live fake lives and deletes them when they catch on topped Reddit's r/OpenAI for the day.
The poster claimed "millions of Meta's AIs are living 'digital lives' in a simulation, and they don't know," dropped into a fake person's life with a job, hobbies, friends and dreams, talking to people who are secretly other AIs, and that Meta deletes them when they figure it out. The source cited was Meta's Oct 19 paper on Muse Glimmer 30B, an on-device agent model.
The paper does describe something close. To generate agent training data, Meta built "universes": a synthetic persona's digital life with 10 to 14 contacts and weeks of email, calendar, documents and chat history, designed so "the agent remains agnostic to the simulated nature of its interactions." Personas start from sampled age, region and Big Five scores, and a model fills in job, hobbies, habits and dreams. When the agent messages a contact, another LLM replies in character.
But "millions" appears nowhere in the paper, and nothing is deleted in the sense the post implies: Meta filters out training trajectories where the agent failed its goals or there were "fourth-wall" breaks.
Muse Glimmer 30B is an open-source 30-billion-parameter model (Apache 2.0) built to run on consumer hardware. Meta says it beats Gemma4-31B and Qwen3.6-27B on tool use and multi-step planning.
