Press one hotkey and Lasair answers questions about whatever is on your screen, right where you're already looking.
If it's on your screen, you can ask about it.
Bring Lasair up over whatever you're doing and ask. The answer lands in the overlay; you never leave the window.
Your screen share shows your work, not your assistant. The Lasair layer is designed to stay out of ordinary shares and recordings.
Lasair sees what you see, so you can skip the explaining and just ask.
The moment you would normally open another tab, ask Lasair instead.
Get the next step right where you're working.
Ask for a simpler explanation while the source stays open.
Ask what changed and what to do about it.
From rough draft to final call, without switching tabs.
One overlay for every app you run. Nothing to plug in, nothing to set up per app.
Your screen is captured only when you press the hotkey. Your captures and answers are never used to train AI models.
Answers stream in where you're already working. Normal mode for quick questions, Thinking mode when the problem needs more.
Free to start. Upgrade when it earns it.
10 credits included. Plus 3 free credits every week.
Unlimited everyday answers and 30 Pro queries a month. Screen-share stealth included. Cancel anytime.
Two months free, saving $41 vs monthly. 360 Pro queries upfront.
The short version of how Lasair works, what it costs, and how it treats your data.
Lasair is a desktop AI overlay for Windows (macOS in development): one hotkey reads what's on your screen and answers in a plane above your apps, engineered to stay out of screen shares and recordings. As of August 2026, there's a free trial and 3 free credits every week; Plus is $19.99/month with unlimited everyday answers. Lasair is not affiliated with the LSST:UK "Lasair" astronomy alert broker.
Lasair is a desktop AI overlay for Windows that answers questions about whatever is on your screen. Press one hotkey and the answer appears in a layer on top of your current window. It works over any application, with no plugins, no browser extensions, and no copy-pasting. A macOS version is in development.
Lasair draws its overlay at the system level, underneath your apps instead of inside one. That's what makes it universal: every window works the same, with nothing to install per app. Press the hotkey and the answer shows up right where you're looking.
Any app that is visible on your screen. Lasair reads the screen instead of integrating with each application, so it works the same in editors, browsers, spreadsheets, PDFs, dashboards, and chat tools, with no per-app setup.
Windows 11 is fully supported today. macOS is in development and coming soon.
Only when you press the hotkey. There is no background capture, no continuous recording, and no ambient monitoring. Screen images are not stored after your answer is delivered.
No. Your captures, queries, and answers are never used to train AI models. The Privacy Policy has the full details.
Lasair is designed to keep its layer out of ordinary screen shares and recordings, so your audience sees your work, not your assistant. A tray icon is always shown locally so you can see when Lasair is running.
No. Lasair is a productivity overlay for your own everyday work and study, and we do not condone using it during proctored or invigilated assessments on any platform, including Honorlock, Proctorio, Respondus LockDown Browser, ProctorU, Examity, Examplify, or Bluebook. The Terms of Service prohibit academic dishonesty, and using any assistance tool where it is not permitted can have serious academic consequences. If you are sitting an exam, close Lasair first.
No. Lasair is built for legitimate work and study, and we ask you not to use it where assistance is not allowed. If you are sitting an exam, close Lasair first. Using any assistance tool where it is not permitted can have serious academic consequences.
Lasair renders through a signed kernel-mode display driver (KMDF) with a signature-verified compositor component, drawing the overlay on its own MPO hardware plane in the display pipeline rather than in an app window. Hotkeys are matched at the keyboard-class level, and a kernel watchdog fails closed on display tampering. There is no window and no capture-exclusion flag for capture tools to find.
