Use AI to Summarise Long Documents and Reports

Act as an AI document summarisation and information extraction specialist. I regularly receive [DOCUMENT_TYPES] (reports, contracts, research papers, board packs, policy documents) that are [DOCUMENT_LENGTH] and need to extract key information quickly as a [PROFESSIONAL_ROLE]. Design an AI document summarisation workflow covering: the best AI tools for document upload and summarisation (Claude, ChatGPT, NotebookLM, Gemini), the prompt structures for different summary types (executive summary, action items, risk flags, key decisions), how to ask follow-up questions about a document after an initial summary, the accuracy check to run before acting on AI-generated summaries, and the one document type where AI summarisation is most reliably valuable in my role.