A document AI assistant uses a large language model (LLM) to answer natural-language questions about documents in a user's workspace. Unlike general-purpose chatbots, a good document AI is grounded — every answer cites the exact source page span, and the assistant refuses to answer when no source supports the claim.
Common use cases: summarizing long documents, finding specific clauses across a contract library, comparing two versions for redlines, drafting investor-update sections from KPI inputs, answering analyst questions inside a diligence room.
Privacy-conscious implementations support BYOK (customer brings their own LLM API key) and zero-retention (prompts and responses never persisted beyond the request lifecycle). EU-only routing is increasingly common for European customers.