Microsoft Copilot
Built into Windows and free to start. Good for quick questions, writing help and Microsoft 365 work. Best if you live in Microsoft apps.
ChatGPT desktop app
OpenAI’s app for Windows. Excellent for conversation, writing, files and voice. Advanced agent features depend on your ChatGPT plan.
Claude desktop app
Anthropic’s app. Strong at writing and reasoning, and can connect to tools through connectors. Best if you prefer Claude’s style.
Nubi
A small helper that works on your own Windows desktop. It sees the screen, clicks and types in your real browser and apps, posts on X, and repeats tasks on a schedule. It works with your own key from Google, Anthropic, OpenAI, OpenRouter and others, so you can start free with Gemini.
Quick guide
- You mostly want answers and writing: any chat app works well.
- You want tasks done on your PC, on a schedule: try Nubi.
- You want to choose and mix AI models: Nubi lets you connect several keys.
Products change often. This page reflects publicly available information at the time of writing.
Updated 2026-10-11
