Harvey vs Lexis+ AI
A side-by-side comparison of Harvey and Lexis+ AI, two Legal tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | Harvey | Lexis+ AI |
|---|---|---|
| Category | Legal | Legal |
| Pricing | PAID | PAID |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Model support | Multi-model | Multi-model |
| Vendor (differs) | Harvey AI | LexisNexis |
| Capabilities (differs) |
|
|
The honest brief
Harvey
The default general-purpose legal AI at scale: Vault analyzes up to ~100K-doc collections, used across AmLaw 100 firms.
- Adopted by most AmLaw 100 firms
- Bulk doc analysis via Vault
- Grounds answers in firm's own materials
- Operates across 60 countries
- No public pricing, sales-only
- ~$1,000+/lawyer/mo, 20-seat minimum
- Tuned to big-firm billable workflows
- Heavy enterprise onboarding
Lexis+ AI
Grounds answers in LexisNexis primary law and runs Shepard's verification to flag AI citations that don't exist.
- Grounded in LexisNexis content
- Conversational research + drafting
- Secure document vault
- Expensive, enterprise pricing
- Requires LexisNexis ecosystem
- Web-only
When to pick which
Both cover Chat with documents, Legal research, and Contract drafting.
Pick Harvey if you need Contract review.
- Contract review (secondary capability)
Pick Lexis+ AI if you need Cited answers and Summarization.
- Cited answers (primary capability)
- Summarization (secondary capability)