Hebbia

Hebbia's Matrix is a multi-agent research system that treats documents like a database. You upload thousands of PDFs, spreadsheets or contracts, then query them as if they were structured data. The autonomy shows up in how agents coordinate to extract, cross-reference and synthesise information across hundreds of files without you babysitting each step. I tested it on a mock due diligence task: 300 NDAs and service agreements, looking for liability caps, indemnity clauses and termination terms. Matrix built a spreadsheet where each row was a contract and each column a clause type, then populated cells by reading and extracting the relevant language. It flagged inconsistencies and let me drill into source text with one click. The agents handled ambiguity better than I expected, distinguishing between liability caps for direct damages versus consequential ones without explicit prompting. The real win is speed at scale. A task that would take a paralegal team days took under an hour. But the interface is a spreadsheet, which feels limiting if you want narrative summaries or need to pivot analysis mid-stream. It's optimised for extraction and comparison, not synthesis or storytelling. I'd reach for this when I have a clear schema in mind and hundreds of documents to process. For open-ended research or smaller document sets, something like Elicit or Perplexity feels more natural. Failure modes: it struggles with scanned PDFs that have poor OCR, and complex nested clauses sometimes get flattened or misattributed. The agents occasionally hallucinate clause text when a document is vague, though it does flag confidence levels. You still need a human to spot-check high-stakes extractions. Compared to Glean or Harvey, Hebbia is more structured and less conversational. Glean excels at search and discovery across internal knowledge bases; Harvey is built for legal drafting and memos. Hebbia sits between them: it's a research workhorse for teams that need to turn document chaos into queryable data. Enterprise pricing means it's a budget line item, not an individual subscription. If you're running regular due diligence, contract reviews or investment research workflows, the time savings justify the cost. If you're a solo operator or your document volumes are modest, you'll hit diminishing returns quickly.