Your messages are sent to Mistral AI — a French company headquartered in Paris — so Jimi can understand natural language and update your calendar. Mistral runs the model that generates Jimi's replies; requests are processed within the European Union.
Per Mistral's API terms, your prompts and Jimi's replies are not retained by Mistral and are not used to train their models.
When you ask Jimi about your schedule (e.g. "what's on today?"), the relevant events are sent to Mistral so it can phrase the answer — and, as above, Mistral doesn't retain them or train on them. We don't send your calendar to Mistral for any other purpose.
Events themselves are stored on our own server (Spring Boot + MariaDB, in the European Union) only if you haven't connected a calendar. If you connect one, Jimi writes them straight to that provider (Google, Microsoft or your CalDAV host) on your behalf, governed by that provider's own privacy policy — we keep no copy.