Stella for Windows
An AI assistant that uses your PC.
Stella is an AI assistant for Windows that can use your PC for you. It clicks, types and works across your real apps, dictates into any app, and keeps working in the background while you do something else. Install it from stella.sh or with one PowerShell command. Free.
Uses your apps
From Explorer to Excel to your browser, Stella works with what is on your screen instead of a list of integrations.
Fixes things
Full drive, broken mods, a missing DLL. Tell Stella what happened and it reads the real error and repairs it.
Speaks Windows
Dictate into any app, say “Hey Stella”, or keep a small Stella window beside your work.
Questions.
Does Stella work on Windows?
Yes. Stella has a Windows desktop app that can use your PC by clicking and typing in your apps, dictate into any app, and listen for “Hey Stella”. Download it from stella.sh or install it with one PowerShell command.
Is there an AI that can use my computer for me?
Yes. On Mac and Windows, Stella can see your screen, click, type, open apps and move between windows to finish a task in the apps you already use, like booking a flight and putting it in your calendar. It acts when you ask it to, and on a Mac you grant the usual screen and accessibility permissions first.
Can I use Claude Code, ChatGPT or my own API keys with Stella?
Yes. Stella works out of the box on its own models. You can also run it on Claude Code, sign in with ChatGPT to use your plan, or add keys for Anthropic, OpenAI, Google, xAI, Moonshot, Z.AI, OpenRouter, GitHub Copilot and more. Local models work too.
Is Stella free?
Yes. The Free plan is $0, with no credit card and no trial. Go is $5 a month for 10× more usage. Pro is $15 a month for the highest limits, image, video, 3D and voice generation, and multiple agents working at once.