Libraries

Libraries are persistent knowledge bases you build from your own documents and web pages.

Attach a Library to any conversation and Le Chat searches its contents in real time, returning answers based on your data with direct references to the source material.

Libraries work best when you need the same set of documents available across multiple conversations:

• Internal documentation: upload your company handbook, IT policies, or HR guidelines and let your team ask questions in natural language.
• Product specs and release notes: keep technical specifications in a Library so product, sales, and support teams can all reference the same source of truth.
• Research and reports: build a Library from industry reports, white papers, or academic articles and query them without re-reading hundreds of pages.
• Client or project knowledge: create a Library per client or project with contracts, briefs, and meeting notes for quick retrieval.
• Onboarding material: pair a Library with an Agent to build a self-serve onboarding assistant for new hires.

1. Click the toggle panel button to open the sidebar.
2. Expand Intelligence and select Libraries.
3. Click New Library.
4. Give it a descriptive name. This is visible to others if you share the Library, so choose something meaningful (for example, Q1 product specs or Engineering onboarding).

Uploading documents

Drag and drop files into the Library, or click Upload to browse your device. You can upload up to 100 files at once, with a maximum file size of 100 MB per file.

A status indicator shows processing progress. Most standard documents (a few MB) process in seconds to a couple of minutes. Larger or more complex files take longer.

Adding web pages

You can also add external web pages to a Library:

1. Click Webpage in the Library view.
2. Enter one or more URLs.
3. Click Index.

Libraries accept the same formats as file uploads:

Attaching a Library to a conversation

In any conversation, click the + button then select Libraries and search for the Library of your choice or create one from scratch. You can attach multiple Libraries to a single conversation.

Querying your documents

Once attached, Le Chat searches across all documents in the Library to answer your questions. Ask naturally:

• "What does our refund policy say about international orders?"
• "Summarize the key findings from the Q2 market analysis."
• "Find all references to data retention in the compliance docs."

Verifying sources

Each response includes numbered footnotes linked to the original source material. Click a footnote to jump to the relevant passage. To see every reference used in a response, click the Sources button at the bottom of the message.

This makes it easy to verify answers against your original documents before using them in reports, emails, or presentations.

By default, a new Library is private (only you can see and use it).

Sharing with specific people

1. Open the Libraries page.
2. Select the Library you want to share.
3. Click Share to open the access modal.
4. Search for users by name or email and assign a permission level:
   • Collaborator: can use the Library, upload or delete documents, and modify settings.
   • Viewer: can use the Library in their own conversations but can't modify it.

Sharing with your entire organization

In the same modal, toggle Entire organization and choose whether everyone gets Collaborator or Viewer access.

Viewing and downloading documents

Open a Library and click any document in the list. The right panel shows the processed content and an auto-generated summary. Click Download in the panel or use the three-dots menu to save the original file.

Renaming a Library

Rename a Library from its settings. The change is visible to all users who have access (they may need to refresh).

Deleting a Library

Delete a Library from the Libraries page. This removes it permanently for everyone, including all uploaded documents.

• No restriction on the number of Libraries you can create.
• Up to 100 files can be uploaded at once per Library.
• Maximum file size: 100 MB per file.
• Each document uses processing capacity based on its size. Your monthly allowance resets automatically and is shared across all your Libraries.

• Documents are stored securely in our European cloud infrastructure.
• Storage lasts as long as the Library exists in an active account. Deleting a Library or your account triggers permanent removal from our systems.
• Training policies depend on your plan. You can opt out of data training at any time.

For more details, see our privacy policy and trust center.

• Files upload: upload documents directly into a conversation when you don't need a persistent knowledge base.
• Agents: attach Libraries to Agents for specialized, knowledge-backed assistants.
• Connectors: connect external data sources like Google Drive, Notion, or GitHub.
• Projects: organize conversations and share files at the Project level.