Best AI Legal Tools Software 2026: 13 Tools Compared
Quick Answer

AI Legal Tools software pricing ranges from Free to $500K per user per month in 2026. The category average is $6.2K/user/month. 3 of 13 tools offer free tiers.

Quick Picks

Best Value

Harvey AI

From Free/user/month

Best Free Tier

Kira Systems

Free plan available

Most Feature-Rich

Harvey

Up to $500K/year

Full Comparison Matrix

Product Starting Price Popular Tier Enterprise Free Tier Best For
Harvey AI Custom Custom Custom No Large law firms and legal departments needing enterprise-grade AI for research, drafting, and document review with custom models
Robin AI Custom Custom Custom No -
Luminance $10 /user/month $50 /user/month $100 /user/month Yes Mid-size legal teams and corporate legal departments needing AI contract review and risk detection across moderate contract volumes
Clio $49 /user/month $104 /user/month $149 /user/month No Solo practitioners or very small firms just starting out who need basic case management and time tracking
CoCounsel by Thomson Reuters $50 /user/month $225 /user/month $500 /user/month No Occasional users who need AI assistance for specific projects without monthly commitment
Spellbook $199 /lawyer/month $249 /lawyer/month $299 /lawyer/month No -
Paxton AI $199 /lawyer/month $249 /lawyer/month $299 /lawyer/month No -
Casetext CoCounsel (Thomson Reuters) $225 /user/month $500 /user/month $900 /user/month No Solo practitioners
Ironclad $500 /month $2K /month $10K /month No Small legal departments and startups needing basic contract lifecycle management without enterprise complexity
Kira Systems $500 /month $2K /month $5K /month Yes Small law firms and legal teams needing AI contract review with pre-built provision models for routine due diligence and contract analysis
Relativity $500 /month $5K /month $25K /month Yes Law firms and legal departments with variable eDiscovery volumes who need flexibility without annual commitments or upfront costs
Ironclad AI Free /year $20K /year $50K /year No In-house legal teams
Harvey Free /year $50K /year $500K /year No AmLaw 200 + global law firms

Category Summary

13

Products

$172

Avg Starting

$6.2K

Avg Popular

3

Free Tiers