Download it
After you buy, you land on the download page. Click Download for Windows — it's around half a gigabyte, so give it a minute.
Your licence ID is on that page too. Save it somewhere before you go any further; you'll need it in a moment, and it's how you get every future version.
When the download finishes, double-click it.
Windows may try to scare you
The first time you run it, Windows might show a blue box saying "Windows protected your PC" and refuse to open the app. This is unnerving, so here's exactly what it means.
It is not a virus warning. … is code-signed, so Windows can see exactly who published it — but while an app is still new, SmartScreen can show this notice until it's been downloaded enough times to build a reputation. Unlike an unsigned app, this one names its verified publisher and won't be hard-blocked. Every small software company goes through this.
To continue: click More info, then Run anyway.
If you'd rather verify the file first, the download page lists the installer's SHA-256 checksum. You can compare it against the file you downloaded — if they match, the file is exactly the one we published and nothing has tampered with it.
Accept the terms and install
The installer opens on a License Agreement page. It's the same terms as the ones on this site — worth a skim, and the short version is that … runs locally, your conversations stay on your machine, and you have 14 days to get your money back.
Next will look broken until you do this. The page opens with "I do not accept the agreement" already selected, so the Next button is greyed out. Click "I accept the agreement" and it lights up.
After that it's Next, Next, Install — it goes in like any normal Windows program. No account, no subscription, nothing running in the background when it's closed.
Enter your ID, once
The first time you open … it asks for your ID. Paste the one from your receipt email — it's also on your download page, so if you've lost the email, open that link again.
This happens once, on this computer. After it, … never asks again and never needs the internet to open. There's no account to make and no password to remember.
Pick your AI model
… looks at your graphics card and tells you which AI model will actually run well on it. You don't need to know what a quantization is — it picks for you, and you can override it if you want.
Then it downloads that model. This is the big one-time wait: anywhere from about 1 GB to 20 GB depending on which one you choose. Go make a coffee. You never do this again.
Start talking
That's it. From now on … opens like any other app and answers from your own hardware.
If you want to prove the point: unplug your internet and keep chatting. Nothing breaks, because nothing was ever leaving your machine.
If something goes wrong
It's slow, or the model won't load. Your graphics card probably doesn't have enough memory for the model you chose. Click ⬡ Model at the top of the window and pick a smaller one — … marks the ones that fit your card, and tells you how fast each one has actually run for you.
Replies stop coming. The engine that writes them starts on demand, and if it has fallen over … restarts it for you and says so in the conversation. If it doesn't come back, click ◈ Status at the top of the window, then Start the engine. Updating your NVIDIA driver fixes most of the rest.
Anything else. Email [email protected] — a human reads it — or use the feedback form inside the app. And you always have 14 days, no questions asked.