In short
Alt+Space opens the running ChatGPT app. To include selected text automatically, use Zack KI with Alt+1 and an OpenAI API key.
Use OpenAI models with Alt+1
- Install Zack KI and sign in.
- Under Advanced → AI provider, switch to Own API key, add OpenAI and enter your API key.
- Choose the models for Quick and Deep.
- Select text in any program and press Alt+1.
ChatGPT app: Alt+Space
The ChatGPT app must be running. Change the shortcut if another app uses it. Add text, files and screenshots in the window.
Source: OpenAI: Using the ChatGPT Windows app, status 17 October 2026.
Zack KI: Alt+1
Alt+1 picks up selected text or files. With nothing selected, you can capture a screen region. Insert sends a text block from the answer back to your app.
Without an API key, you use Zack Quick and Deep with Zack credits.
Related questions
Does an OpenAI API key cost the same as ChatGPT Plus?
No. The API is billed by usage according to OpenAI’s API prices, separately from a ChatGPT plan.