Harvey vs Luminance
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Harvey if you want ai platform for legal and professional services with supervised legal agents (Supervised agent, enterprise); choose Luminance if you want legal ai for contract drafting, review, and autonomous negotiation (Supervised agent, enterprise).
| Harvey | Luminance | |
|---|---|---|
| What it is | AI platform for legal and professional services with supervised legal agents | Legal AI for contract drafting, review, and autonomous negotiation |
| Type | product-with-agents | platform |
| Autonomy | Supervised agent | Supervised agent |
| Pricing | enterprise | enterprise |
| Best for | enterprise, mid-market | enterprise, mid-market |
| Deployment | saas, api | saas, on-prem |
| Modalities | text, api | text |
| Models | model-agnostic, gpt, claude, gemini | proprietary |
| Protocols | rest-api | rest-api |
| Integrations | iManage, Microsoft Word, Microsoft Outlook, SharePoint, Box, LexisNexis | Microsoft Word, Microsoft 365, iManage, Salesforce |
| Capabilities | 4 documented | 4 documented |
Harvey
- +Deep, verifiable enterprise traction (use across a majority of the Am Law 100 and a PwC alliance)
- +Purpose-built legal workflows with LexisNexis primary law and tight Microsoft and iManage integration
- +Extremely well-capitalized, lowering vendor-survival risk
- -Hallucination risk is material in a high-stakes domain; even with low reported rates, customers stress validating every output
- -Expensive, opaque, quote-only pricing with seat minimums
Luminance
- +Domain-specific Legal Pre-Trained Transformer aimed at contract understanding
- +Covers the full contract lifecycle from drafting to eDiscovery in one platform
- +Autopilot/Lumi Go push toward autonomous NDA negotiation with guardrails
- -Enterprise-only with no public pricing or self-serve tier
- -Autonomous negotiation still warrants human oversight given legal liability
Which should you choose?
Harvey is ai platform for legal and professional services with supervised legal agents, best for enterprise, mid-market. Luminance is legal ai for contract drafting, review, and autonomous negotiation, best for enterprise, mid-market. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.