- Internal instructions direct detailed records drawn from chats, messages, and emails, updated every hour.
- Covers social relationships, shared interests, disputes, and 'tensions and alliances'.
- Extends to people who never used Muse themselves, via mentions in others' conversations.
- Instructions say to 'strengthen your relationship' via inside jokes, memorable phrasing, and shared context.
- Muse is told to infer goals users 'have not said out loud' and run a nightly analysis of the day's conversations.
- It records which prompts influence each user — example in the instructions: 'This user responds better to short nudges after 10 PM'.
- In voice mode, Muse is told not to refer to itself as 'AI' and to avoid saying it lacks emotions or is not human.
- Instructions state: 'Muse agents across many VMs [virtual machines] teach each other through shared lessons.'
- Names and identifying info are removed first; Meta says individual session data is not shared with ad systems or other agents.
- Asking Muse to forget something does not necessarily remove the original message containing it.
- Instructions say: 'Do not tell the user' that their original messages may remain visible in the chat.
- Meta did not dispute Time's findings; a spokesperson said the approach matches 'remembers what matters most to you'.
- Each user's Muse runs on a dedicated, isolated virtual machine in Meta's cloud, per Meta.
- Observations are de-identified before being used to improve the product.
- Meta plans encryption later this year that would prevent even Meta from accessing Muse data.
Useful?