How Nox works — from your message to a safe answer

Here is what actually happens when you talk to Nox — from the moment you send a message to the answer you read — including the safety layer that runs before the AI ever responds.

You ask in plain language

Open a chat and describe what's going on — a symptom, a medication question, a sleep problem, anything about your everyday health. No forms, no symptom checkboxes. You can type, talk out loud in a live voice call, or attach a photo of a label, meal, rash, or wearable reading.

A basic emergency check runs first

Before the AI model answers, Nox checks your message for signs of acute red-flag conditions across dozens of categories, such as stroke signs, chest pain, severe breathing difficulty, or a mental-health crisis. This is basic, keyword-based detection that runs before any AI is called; when it matches, Nox shows an emergency alert with the correct local emergency number when you set your region. It is a safety net, not a guarantee: no automated system catches every emergency, and Nox publishes the detector's measured recall and false-positive rates on its Trust & Transparency page. This check is deterministic — the same input always produces the same result — and it runs before any AI-generated text reaches you.

Nox answers clearly, citing trusted sources

If nothing urgent is detected, Nox explains what matters in plain language: likely explanations, what to watch for, sensible self-care, and when it makes sense to see a professional. Nox is instructed to ground health answers in trusted sources such as Mayo Clinic, CDC, NIH/MedlinePlus, and WHO — and never to diagnose or prescribe.

You can go deeper when you need to

Nox Agent previously provided dedicated deep research with cited, openable resource cards. That mode is now retired; use Plan mode with live web access for cited research. Ask for a chart of your numbers, a diagram, or a structured 'Analyze My Day' report from your sleep, energy, and stress.

Nox remembers what you choose to share

With Memory on, Nox keeps track of durable facts you share — like an allergy or an ongoing condition — so you don't repeat yourself. You can review and delete every remembered fact in Settings, or use Incognito mode for conversations that are never saved at all.

You stay in control

Your chats are private, are not sold, and are not used to train third-party models. App integrations (calendar, docs, tasks) only ever create new items and always ask you to confirm before acting. You can export questions to a real clinician, delete conversations, and manage your subscription anytime.