Mochii AI

Mochii AI is free to use. It works as a browser extension and as a web app, so you can reach it while you browse or from a separate tab.

Mochii AI is an AI assistant and chatbot tool that helps you navigate, understand and interact with web content, with the aim of saving time on everyday reading and research.

The feature list is broader than a plain chat window.

You can create custom AI characters, set up knowledge base chatbots, and connect to models such as ChatGPT, Claude and Gemini.

That model choice matters if you like to compare answers from different large language models without switching between sites.

Mochii also covers coding and development use as well as general office work, so one assistant can handle tasks in both areas.

Because the pricing model is free, trying Mochii AI costs nothing beyond the time to install the extension or open the web app.

Whether it replaces your current assistant depends on how much you value having it inside the browser.