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To start using MITHUNAI Chat, open chat.mithunai.com, sign in with the MITHUNAI account you already use for the console, and type in the message box. There is no separate Chat account and nothing to install. Switch on Knowledge in a thread when you want answers from your own content, with citations.

Before you start

  • A MITHUNAI account in your organisation. Any role can use Chat. If you do not have one, ask an Owner or Administrator to invite you.
  • Knowledge to draw on, if you want grounded answers: at least one source indexed and one assistant that answers from it. Chat works without them, as a general chat workspace.

Open Chat and sign in

1

Open Chat

Go to chat.mithunai.com, or choose Chat under More in MITHUNAI in the console’s sidebar. On a deployment of your own, Chat has its own address beside the console’s.
2

Sign in once

Choose the sign-in button. Chat sends you to the MITHUNAI sign-in page, where you sign in as you do for the console, and brings you back signed in.
3

Check you are in

The rail on the left shows your conversations, and its foot shows your name and email with Log out beside them. An account from another organisation is refused with This account is not a member of the organisation this application belongs to.

Your first thread

  1. Type a message in the box at the bottom and press Enter. A new thread starts and is named for you after the first reply.
  2. Switch on your knowledge. Open MCP Servers under the message box and select Knowledge. From then on the model can list, search and ask your knowledge in this thread, and cite what it used. See Ask questions grounded in your knowledge.
  3. Pick a model, if you want a different one. The model menu at the top of the thread lists the models your organisation’s Gateway offers. See Choose a model.
  4. Attach a file, if the question is about one: plain text, Markdown, CSV, PDF, or a PNG, JPEG or WebP image, up to five files of 10 MB each and 25 MB in all.
For a question that must be answered from your documentation, say so: “Using our knowledge, how do I rotate an API key?” The model then uses the Knowledge tool rather than its own general knowledge, and the reply cites the passages it used.

Find your way around

Next steps

Last modified on November 7, 2026