Ask the AI research agent anything.
An AI agent that sits on top of your findings — dig into any topic, triangulate against other sources, and surface what matters from the data underneath.
Follow every thread to the end.
Question our research agent the way you would question a consulting team — and get answers backed by direct reference to the underlying evidence.
Harvey and Legora are consistently named as the two leading legal AI vendors — the “big two” — and experts describe them as broadly comparable, with the winner depending on task, firm size, and geography. On the platform’s NPS exhibit, Harvey scores +24 versus roughly neutral for Legora1, but views in the transcripts are genuinely split, so here is the detail.
Our experts (German and Spanish) favored Legora for European data residency and regulatory fit. Public sources strongly corroborate:
Cross-check against the wider world.
Ask the agent to test a finding against public sources and other data. It shows where expert views and outside evidence agree, where they diverge, and links every comparison back to where it came from.
The headline, straight from the data.
Point the agent at any analysis and it reads the evidence underneath — surfacing the insight that matters, so you don’t have to comb through it.
Harvey’s clearest lead is breadth of use cases — and it matches or beats Legora on every criterion.
- Broader workflow coverage across use cases. Experts repeatedly rated Harvey a 4-5/5 on breadth versus lower scores (2-3.5/5) for narrower point-solution tools like CoCounsel and Lexis+ AI1841
- Multiple underlying search/model engines. One expert cited Harvey’s ability to run on multiple engines as a 5/5 differentiator supporting its broader applicability7
- General-purpose, cross-practice-group design rather than being confined to a single function — experts contrasted this with CoCounsel and Lexis+ AI, which are viewed as narrower legal-research-centric tools2322
- Some experts saw little or no gap — several rated Harvey and Legora equally (5/5 each) on breadth, since Legora has been closing the gap on functionality10

