One companion. Three people, three voices.
"Hazel" is the same AI Companion in every part of Margaret's care. She speaks gently to Margaret, briskly to Sarah, and honestly to David — drawing from the same single record of meds, visits, sensor events and conversations. Switch between perspectives on the left to see how the same context becomes a very different reply. The production system runs on Google Gemini 3.1 Pro Preview; this page replays canned conversations so the demo is instant and free to use.
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Persona-aware reasoning
The same back-end persona prompts give Margaret short, gentle replies; give Sarah crisp clinical handovers; and give David honest, family-friendly summaries with concrete next steps.
Grounded in the care record
Hazel only references medications, visits, family and notes that exist in the seeded scenario. If something isn't known, she says so and offers to escalate to Sarah.
Safety-first by design
Mentions of pain, dizziness, falls, refusal of meds or sudden confusion automatically trigger a recommendation to escalate to a human carer or 111/999.