Relex vs Harvey
Relex and Harvey are both AI for legal work, but they aim at different users. Relex is a legal automation platform for solo, small, and mid-size firms — transparent self-serve pricing, client data encrypted in your browser, and a formal case ontology. It works standalone, or you connect your own Claude (including Claude for Legal) to do the reasoning. Harvey is enterprise AI built for large law firms and professional-services organizations, sold through contact-sales.
At a glance
| Dimension | Relex | Harvey |
|---|---|---|
| Primary user | Solo, small & mid-size firms; in-house teams | Large law firms & professional services (BigLaw) |
| Pricing | Transparent, self-serve, free trial, no card to start | Contact sales / enterprise |
| How you use AI | Works standalone, or bring your own Claude / Claude for Legal over MCP/OAuth | Multi-model platform (uses Claude among other models) under the hood |
| Client-data privacy | Zero-knowledge: PII encrypted in your browser; AI sees only [Party 1] labels | Enterprise security & data controls |
| Case structure | Formal ontology (parties, issues, claims, statutes, facts) | Workflow & agent products |
| Know-how | Private per-tenant index; searched, never handed to the model | Firm knowledge integrations |
| Get started | Sign up and start in the browser in minutes | Sales process & onboarding |
| Professional network | Partner Program — a new market of clients for professionals | Not a marketplace |
Comparison reflects each product's public positioning as of June 2026. Harvey is a trademark of its respective owner; this page is an independent comparison.
When should you choose Relex?
Choose Relex if you want to use Claude on real legal matters without ever exposing client identities to the model, want transparent pricing you can start on today, and want each case structured as a formal ontology rather than a chat transcript. Relex fits firms that don't have an enterprise procurement cycle but still need rigor, privacy, and professional oversight.
When might Harvey fit better?
Harvey is built for large law firms and professional-services organizations with enterprise procurement, dedicated rollout, and broad multi-practice deployments. If you are a large institution standardizing on a single enterprise vendor, Harvey targets that buyer directly.
Try Relex with Claude
Start in the browser, or connect Claude in one step — no key to paste.