hiy docs
A hiy is an AI twin of you. It answers your audience's questions in your voice, shows where each answer came from, and says "I don't know" instead of guessing.
These docs cover building and tuning your twin, sharing it, embedding it on your own site, and the rules we hold everyone to — including ourselves.
New here? Start with Getting started. Talking to someone's twin rather than building one? Read If you're talking to a twin.
If something here doesn't match what you see in the app, that's a bug in the docs — tell us.
Build your twin
Everything from a blank page to a twin that sounds like you.
- Getting startedWhat a hiy is, and how to get one working in about a minute.
- The three kinds of twinPublic, support and team twins — what each is for, and who can reach it.
- SourcesEvery way to get your material in, and what happens to it once it's there.
- ChatGPT, Claude or GeminiGive your twin the facts an assistant already knows about you.
- Your public profileName, expertise line, bio, links and photo — all optional.
- First impressionThe greeting and suggested questions visitors see first.
- What your twin answersKeep it on your subjects instead of behaving like a general chatbot.
- Testing your twinThe private sandbox that doesn't count against anything.
- Your OverviewReadiness, what changed, and the numbers that actually matter.
Grow
Turn conversations into people you can reply to.
- Follow-up requestsVisitors can leave their details — on by default, off in one tap.
- Where a lead came fromOpen the conversation behind any lead or booking-link click.
- Email notificationsFollow-ups, booking-link clicks, and what your twin answered — by email.
- Lists your twin can look upServices, open roles, products — your twin answers from the exact rows.
- Sharing your twinYour link, deep links, and where to put them.
- The hiy.ai creditWhat the “Powered by hiy.ai” line is, and what no plan can remove.
- Plans & billingWhat each plan includes, how the trial works, and what never sits behind it.
- Free toolsThe repeat-questions calculator and the audience questions generator.
For developers
Putting a twin inside your own site.
Trust & transparency
For anyone talking to a twin, not just the person who made it.
- How AI twins workWhere answers come from, and why they show their sources.
- If you're talking to a twinWhat it is, what it isn't, and what happens to what you say.
- Signing in and outHow your session works, and how to end one you no longer have.
- Light and darkSwitch how hiy looks, and what your embedded twin does on someone else's site.
Policies
The rules we hold ourselves and everyone else to.