How to Use ChatGPT During a Zoom Call Without Putting It on Screen

If you aren't sharing your screen at all, there's nothing to solve. Zoom sends your camera and microphone, and the ChatGPT window on your desktop stays yours. The problem only starts when you click Share. So everything below is about what you share and where ChatGPT lives while you do.

Your options at a glance

Method 1: Share one window and keep ChatGPT in another

This is free and it's what we'd tell a friend to try first.

1. Open ChatGPT in its own browser window (not a tab in the window you'll share), or open the ChatGPT desktop app.
2. In Zoom, click Share.
3. On the Screens tab, pick the app window you want people to see, such as your slide deck or the product demo. Don't pick "Screen".
4. Need two apps on the share? Hold Ctrl and select both. Zoom notes they must be on the same screen to be visible (Zoom Support).
5. Click Share. Now switch to ChatGPT whenever you need it; viewers keep seeing the shared window.

What goes wrong: the moment you switch to ChatGPT, you can't see your own shared window, so you lose track of what the audience is looking at. And if ChatGPT lives in the same browser window as the tab you're sharing, it's on the call. Separate windows, every time.

Method 2: Put ChatGPT on a second monitor

1. Press Win + P and choose Extend. Duplicate would mirror ChatGPT onto the shared display.
2. Drag ChatGPT to the second monitor, or press Win + Shift + Right.
3. In Zoom's share dialog, pick the monitor without ChatGPT ("Screen 1" or "Screen 2").
4. Turn on Do Not Disturb in Windows so chat notifications don't land on the shared monitor.

It's the setup most people with a desk already have. The weakness is your face. Every glance at the side monitor reads as "not listening" on camera, which is worse on a sales call than a status meeting.

Method 3: Use ChatGPT on your phone

No share risk at all, because the phone isn't part of your desktop. It's a decent fallback for a quick fact. It falls apart for anything longer than a sentence: typing a multi-part question on a phone while talking is hard, and pasting a block of code or an error message from your PC into the phone is harder.

What about Zoom AI Companion or the ChatGPT desktop app?

Zoom AI Companion can answer questions about the meeting itself ("catch me up", "what are the action items") from the meeting transcript. The host has to start it and allow participants to ask questions, and answers only cover what was said while it was running (Stanford UIT overview). It won't help you draft a pricing answer or explain a stack trace, and it's a different job from a general assistant like ChatGPT.

The ChatGPT Windows app has a companion window you open with Alt + Space (OpenAI Help). It's quick to summon. It's also an ordinary window, so if you share your whole screen it's on the call. Use it with method 1 or 2.

Method 4: Run ChatGPT in a capture-excluded overlay

Sometimes you can't share a single window. You're demoing across a browser, a terminal and a spreadsheet, or a client asked you to "just share everything". On Windows 10 version 2004 and later, an app can mark its window with WDA_EXCLUDEFROMCAPTURE. Windows then draws it on your monitor but leaves it out of every capture, including Zoom's screen share (Microsoft Learn). Viewers see what's underneath.

AuraCloak is an invisible AI overlay for Windows that works this way. Its browser mode loads chatgpt.com inside the overlay with your normal login, so your ChatGPT Plus subscription works and you don't need an API key. Here's the setup:

1. Install AuraCloak (about 50 MB) and enter your license key on first launch.
2. Pick Browser in the provider dropdown in the overlay's title bar.
3. Type chatgpt.com in the URL bar and sign in once. The login is kept in AuraCloak's own browser profile, so you won't sign in every call.
4. Resize the overlay and lower its opacity so it sits over a corner of your screen without covering what you're presenting.
5. Use Ctrl + Alt + Space to show and hide it, and Alt + C to make it click-through so mouse clicks pass to the app underneath.
6. Start a Zoom test call from your phone, share your entire screen and confirm the overlay isn't on the phone.

Prefer an API key? The same overlay talks to OpenAI, Anthropic Claude, Google Gemini, GitHub Copilot, Azure OpenAI or a custom endpoint directly, with streaming answers. Alt + S grabs a screenshot of your monitors and attaches it, which is useful when the question is about something already on screen, like a chart or an error dialog. The overlay doesn't listen to the call. Voice input uses your own microphone only, started and sent with Alt + V, and you can run it fully offline with local Whisper. For a sales-call workflow, see the sales calls use case.

Using ChatGPT on calls responsibly

Hiding a window from the share is a privacy measure, the same reason you close your inbox before presenting. It doesn't change what's appropriate in the meeting. A few rules we hold ourselves to:

• Don't paste confidential client data into a personal ChatGPT account. Check your company's AI policy; many orgs require an enterprise workspace or an approved provider such as Azure OpenAI.
• Read the answer before you repeat it. ChatGPT will confidently invent a product spec. On a sales call that becomes a promise.
• Follow the meeting's rules. If the host or your employer has said no AI tools, that applies whether or not the window is visible.
• Prepare prompts before the call. A saved system prompt with your product facts gives far better answers than a cold question typed mid-sentence.

Prompts that work mid-call

You have maybe ten seconds while someone finishes their question. Long, chatty answers are useless at that speed. Three habits help:

1. Ask for the shape you need. "Two bullet points, under 25 words each" beats "explain". You can't read a five-paragraph essay while talking.
2. Load context before the call. Paste your product one-pager, the agenda or the client's last email into the chat first, then ask "Based on the above, what's our answer on data retention?" Answers grounded in your own material are far less likely to be invented.
3. Paste the exact words. If the question came in the Zoom chat, copy it verbatim. Paraphrasing under pressure drops the detail that matters.

With an API key in AuraCloak, you can set a custom system prompt once (your role, product and tone) so every answer starts from it.

FAQ

Can people on Zoom see my ChatGPT window?

Only if it's inside what you share. If you share your entire screen and ChatGPT is on it, they see it. If you share a different window, or ChatGPT is on a monitor you aren't sharing, they don't.

Can Zoom tell that I'm using ChatGPT?

Zoom has no feature that reports your other apps to the host or participants, and it removed attendee attention tracking in 2020. People can only see ChatGPT if it appears in your shared content or your camera view.

Is there a free way to use ChatGPT during a Zoom call privately?

Yes. Share a single window instead of your whole screen and keep ChatGPT in a separate window, or use ChatGPT on your phone. Both cost nothing. A capture-excluded overlay is only needed if you must share the entire screen.

Does ChatGPT's Alt+Space companion window hide from screen share?

No. The ChatGPT Windows app's companion window is a normal window, so it appears in a full-screen Zoom share like any other app. Keep it on a monitor you don't share or share a single window instead.

Can I use my ChatGPT Plus subscription in an overlay?

Yes, with an overlay that embeds the ChatGPT website. AuraCloak's browser mode loads chatgpt.com with your normal login, so your Plus subscription applies and no API key is needed.