Window AI is a browser extension that lets you use different AI models directly inside web applications. Instead of developers hard-coding one AI provider, users choose which model to run.
You install the extension, connect your preferred AI model, and any compatible web app can send prompts through it. The app uses your model instead of the developer’s backend AI service.
It works with several popular models including OpenAI, Google, Anthropic, Cohere, Together, and even locally-run models on your own computer.
Normally, AI features in apps depend on a developer’s backend and API keys. That creates problems:
- Users can’t choose which AI model they want.
- Developers pay API costs.
- Privacy depends on the app’s infrastructure.
Window AI flips that model.
Users control the AI provider and credentials. Developers just integrate the window.ai interface. This can reduce API costs, give users more privacy, and make apps model-agnostic.






