ChatGPT, Claude or Gemini
If you've spent a year telling ChatGPT, Claude or Gemini who you are, that assistant already holds a compact description of you. This is how you hand that description to your twin — not by connecting anything, but by pasting it in, once.
What this actually is
There's no way for hiy to reach into an assistant's memory directly. No assistant exposes it, and none offers an API for it. What arrives is a paste: you open the assistant's own memory screen (or ask it to write out what it remembers), copy the text, and bring it here. That's the mechanism, not a workaround.
Think of it as a seed, not a migration. It gives your twin a head start on facts an assistant already has about you. It doesn't carry over how you'd phrase things, and it doesn't teach your twin to sound like you — more on that below.
Two ways to capture it
Copy it from settings when you can. Open the assistant's own memory screen — Personalization in ChatGPT, Capabilities → Memory in Claude, Personal context → Saved info in Gemini — and copy exactly what's shown there. What you paste is what the assistant actually holds. This is ground truth, and it's the option hiy offers first.
Ask it to write the list out when there's no settings screen to copy, or you'd rather have it in one clean block. hiy gives you a prompt to paste into a new chat, asking the assistant to list everything it has stored, verbatim. But this is the assistant generating prose about itself, not reading a database — it can include things it never actually stored, alongside things it did. This is why the review step below exists, and why it's worth reading every line before you approve it.
Review before anything is stored
Pasting your text splits it into individual facts — one per bullet, per numbered item, or one per line if there's no list. Each fact gets its own checkbox, ticked by default. You go down the list and untick anything that's wrong, private, or about someone else. You can leave a fact out, but you can't rewrite one: what survives review is still what the assistant said, not an improved version of it.
Only the facts you leave ticked are ever sent anywhere. Splitting the paste into facts and reviewing them both happen in your browser, before any network request — a fact you untick never reaches hiy's servers at all.
Under the list, a consent checkbox names what a memory dump can contain: health, sex life or sexual orientation, politics, religion, finances or relationships. An assistant's memory of you can genuinely include any of these, so you confirm you've read what you're about to add before the button unlocks. See the privacy policy for what that consent covers and how to withdraw it.
There's a cap of 200 facts per import, 600 characters each — plenty for a memory dump, and a limit on how much unreviewed text one paste can turn into.
Answers, not voice
This is the part worth being precise about. An imported memory is a summary written by another assistant, in its own third-person register — something like "the user prefers concise answers" is knowledge, not something you'd say out loud. So it feeds your twin's answers, the same as any other source, but it's deliberately excluded from the material that shapes how your twin sounds. That's a real distinction, not a smaller one: if your twin is public, anyone who chats with it can be shown one of these facts as an answer — quoted, with this import's title next to it as the source. "Answers, not voice" describes what the import can't do, not who can see what it can. In your Sources list it carries a small MEM badge, a title like "What ChatGPT remembers about you — 12 facts," a line saying where it came from, and "answers only, not voice" — so this is never invisible. If your twin's tone ever drifts, this import isn't why.
Nothing syncs
This is a one-time paste, not a connection. There's no refresh button and no "last synced" line, because nothing here stays live after you add it. If an assistant learns something new about you next month, the only way to bring it in is to paste again.
Removing it
Delete it the same way as any other source, from Knowledge → Sources — there's no separate control for a memory import. Deleting it takes the source and everything indexed from it out together, at the next train — nothing is kept behind a flag, and none of it lingers past that rebuild. Trains run overnight on their own, so if you want it gone now rather than tonight, delete it and then press Train now: until that rebuild lands, your twin can still answer from it.
That only removes hiy's copy. It doesn't touch anything ChatGPT, Claude or Gemini itself still holds — clearing it from the assistant's own memory means using that assistant's own settings.