Document Chat lets you ask questions of a single source without bleed-in from anywhere else, with every answer grounded in that document and every claim citing the exact passage it came from.
It's the right tool when you need:
A traceable answer from one source, not a synthesis across many
To audit a long, dense document (CSR, label, regulatory guidance)
To extend a specific Deep Citation passage with follow-up questions
To interrogate internal documents stored in a Project
How to start a Document Chat
After Cheiron answers a question, hover over any source card in the references panel. If the Document Chat button appears on that card, the source supports Document Chat. Click the button to open a chat scoped to just that document.
This is the most common path — you got an answer, you want to dig deeper into one of the cited sources, and Document Chat lets you do that without leaving the flow you're in.
How to use Document Chat
1. Ask a focused question
Document Chat works best with questions that have a clear answer inside the document. Examples:
"What were the primary endpoints in this Phase 3 trial?"
"What's the dosing recommendation for moderate hepatic impairment?"
"What does this guidance say about combination products with biologics?"
"What were the safety findings in patients over 65?"
Cheiron only draws from the document you've opened, so questions about anything outside it won't be answered.
2. Read the answer and verify
Every answer in Document Chat includes citations to the exact passage in the document. Click a citation to jump to that passage in context. The same Deep Citations workflow applies — verify before you act.
3. Iterate
Ask follow-ups, refine, reframe. Document Chat keeps the document context for the whole conversation, so you don't have to restate which document you're asking about. Use this to walk through a long source section by section.
Tips
Be specific about what you want from this document. "What does this say about X?" works better than "tell me about this document."
Use the document's own language. If it uses specific terminology (e.g., "Cohort A" or "Section 6.1"), use it in your questions.
Switch back to Ask Cheiron when your question outgrows the document. Document Chat is intentionally narrow. If you find yourself asking questions the document can't answer, take them to the main conversation instead.
Verify cited passages. Even though Cheiron is grounded in only one document, the verification habit still applies — click citations and read the actual passage.