Legal AI went from experiment to infrastructure in the last two years. The right tool saves associates hours a week on contract review, legal research, document drafting, and client intake. We compared the seven AI tools for lawyers that matter in 2026.
| Tool | Category | Starting Price | Best For |
|---|---|---|---|
| Spellbook | Contract drafting & review (Word) | ~$99-350/user/mo | Transactional lawyers in Word |
| Gavel Exec | Contract review (Word) | $160/user/mo | Small firms wanting published pricing |
| CoCounsel | AI legal assistant | ~$225-850/user/mo | Firms already on Westlaw |
| Lexis+ AI (Protege) | Legal research AI | ~$125-275/user/mo add-on | Firms already on LexisNexis |
| Harvey | Enterprise legal AI | ~$1000-2000/seat/mo | BigLaw only |
| Clio + Clio Duo | Practice management + AI | $39/user/mo | Solo & small firms |
| LawDroid | AI assistant + automation | $25/user/mo | Budget-conscious solos |
Quick Comparison
- Spellbook — Contract drafting & review in Word, ~$99–350/user/mo. Best for transactional lawyers.
- Gavel Exec — Contract review in Word, $160/user/mo. Best for small firms wanting published pricing.
- CoCounsel — AI legal assistant, ~$225–850/user/mo. Best for firms already on Westlaw.
- Lexis+ AI Protégé — Legal research AI, ~$125–275/user/mo add-on. Best for LexisNexis firms.
- Harvey — Enterprise legal AI, ~$1,000–2,000/seat/mo. BigLaw only.
- Clio + Clio Duo — Practice management + AI, $39/user/mo. Best for solo & small firms.
- LawDroid — AI assistant + automation, $25/user/mo. Best for budget solos.
1. Spellbook — Best for Contract Work in Word
Redlines counterparty drafts, flags risky clauses, drafts from clause library, benchmarks against market data. 4,000+ legal teams.
Pricing: ~$99–199/user/mo standard, $300–350 enterprise, 7-day trial.
Pros: zero workflow change inside Word, benchmark feature, associate agent for multi-document review.
Cons: no published pricing, transactional only, AI suggestions need attorney review.
Verdict: best Word-native contract AI for transactional practices. Spellbook
2. Gavel Exec — Best Transparent Pricing for Contract Review
AI contract review inside Word (and web since April 2026): first-pass reviews, redlines with comments, clause benchmarking. Standout: published pricing.
Pricing: $160/user/month or $1,740/year. 25 free queries, no credit card.
Pros: published pricing, lowest published per-seat price, SOC 2 HIPAA-compliant zero retention, Workflows automates intake-to-document.
Cons: newer smaller user base, fewer benchmark data points, transactional focus.
Verdict: pragmatic Spellbook alternative with honest pricing. Gavel Exec
3. CoCounsel (Thomson Reuters) — Best for Westlaw Firms
Agentic AI for research, document review, drafting, deposition prep. Rides on Westlaw.
Pricing: Core ~$4,500/user/year (~$225/mo), All-In ~$10,200/year (~$850/mo), plus Westlaw ~$200–400/seat.
Pros: deep Westlaw integration, agentic multi-step workflows, TR backing.
Cons: requires Westlaw, expensive all-in, enterprise sales motion.
Verdict: highest-leverage AI move if already on Westlaw.
4. Lexis+ AI (Protégé) — Best for LexisNexis Firms
AI grounded in LexisNexis case law with verifiable citations.
Pricing: Lexis+ $114–324/mo base, AI add-on ~$125–275/user/mo.
Cons: annual contracts with auto-renewal, pricing opacity above solo tiers, overkill outside Lexis ecosystem.
Verdict: mirror of CoCounsel — turn it on if you’re a Lexis shop.
5. Harvey — Best for BigLaw (and Almost Nobody Else)
~$11B valuation, conversational AI, 100,000-document vault, agentic M&A workflows.
Pricing: ~$1,000–2,000+/seat/mo, 25–50+ seat minimum, $300K+/year entry. No self-serve.
Pros: most capable for complex matters, purpose-built legal models, 92% monthly adoption.
Cons: off-limits for small firms, $50–200K implementation on top.
Verdict: BigLaw already knows; everyone else skip.
6. Clio + Clio Duo — Best All-in-One for Solo & Small Firms
150,000+ users: matter management, time tracking, billing, intake, documents. Duo is built-in AI.
Pricing: Manage Starter $39/user/mo annual, up to Elite $99 annual. Duo ~$49/user/mo add-on.
Pros: one platform for everything, deep integrations, Duo works on your matter data.
Cons: AI less deep than dedicated tools, per-seat costs add up, best Duo features behind higher tiers.
Verdict: get Clio first, treat AI as bonus. Clio
7. LawDroid — Best Budget AI Legal Assistant
Copilot $25/user/mo (research, summarization, drafting), Builder $99/user/mo (no-code chatbots, intake automation). No contract, 7-day trial.
Pros: cheapest credible legal AI, no annual contract, Builder automation genuinely useful.
Cons: citation sources not fully transparent, Builder needs workflow comfort, smaller company.
Verdict: lowest-risk start for solos. LawDroid
Our Top Pick
Match the tool to your workflow. Transactional in Word: Spellbook (market leader) or Gavel Exec (published pricing, faster trial). On Westlaw/Lexis: turn on CoCounsel/Protégé. Solo without practice management: Clio first. Overall value pick: Gavel Exec — highest-ROI task (contract review in Word) at lowest published price ($160/user/mo) with genuine free trial.
Note: AI outputs require attorney review. Verify citations and confirm data handling meets ethical obligations.
Prices verified October 2026. AI Scout Pro may earn a commission on purchases through links on this page.