Harvey AI for AmLaw firms. CoCounsel for general research. Spellbook for contracts. Each fills a specific role — there's no single "best AI for lawyers" answer.
The 8 AI tools for lawyers we recommend
| # | Tool | Best for | Pricing |
|---|---|---|---|
| 1 | Harvey AI | AmLaw firms, complex matter work | Enterprise |
| 2 | CoCounsel (Thomson Reuters) | Legal research, citation checking | $100+/seat |
| 3 | Spellbook | Contract review for SMB lawyers | $89/mo |
| 4 | Litera Replay | Document automation | Enterprise |
| 5 | Robin AI | Contract drafting and review | Enterprise |
| 6 | Claude Pro / Enterprise | General drafting, complex reasoning | $20-$60/seat |
| 7 | ChatGPT Enterprise | General use across the firm | $60+/seat |
| 8 | EvenUp | Personal injury claims | Per-case |
What AI does well in legal (and what it doesn't)
Works well in 2026:
- Legal research and citation lookups
- First-draft contract review (flagging risky clauses)
- Document summarization (depositions, discovery)
- Drafting routine memos and client communication
- Cite-checking and Bluebook formatting
Doesn't work well in 2026:
- Final legal advice and opinions (lawyers only)
- Court appearances and oral arguments (lawyers only)
- Strategic case-theory decisions (human judgment)
- Sensitive client relationship management
Best AI tools by legal workflow
Matter work and complex litigation: Harvey AI
Harvey AI — Enterprise pricing — is the leader for AmLaw 100 firms. Trained on legal-specific corpora; integrates with iManage and NetDocs; SOC 2 II + ISO 27001 compliance. Used by 350+ AmLaw firms.
General legal research: CoCounsel
CoCounsel (Thomson Reuters / Casetext) — $100+/seat — is the dominant legal research tool with AI features. Native integration with Westlaw. Citation accuracy is the strongest in the category.
Contract review and drafting: Spellbook
Spellbook — $89/mo — works inside Microsoft Word. Reviews contracts against your firm's playbook, flags risky clauses, drafts standard provisions. Best for SMB lawyers and mid-market firms.
Document automation: Litera Replay
Litera Replay — Enterprise — automates document generation from templates. Used by 4,000+ law firms for matter document generation at scale.
Personal injury and claims: EvenUp
EvenUp — Per-case pricing — focused on personal injury demand letters. Reads medical records, generates demand letters, identifies damages. Strong vertical play.
General drafting and synthesis: Claude Pro/Enterprise
Claude Pro at $20/mo or Claude Enterprise at higher tier handles general drafting, complex legal reasoning, and document analysis. Better than ChatGPT for legal nuance in our testing.
A realistic AI stack for a solo lawyer
| Tool | Monthly | Purpose |
|---|---|---|
| Claude Pro | $20 | Drafting, reasoning |
| CoCounsel | $100 | Legal research |
| Spellbook | $89 | Contract review |
| Total | ~$210/mo | Comprehensive AI augmentation |
Realistic time savings: 8-12 hours per week. At $300/hr billable, that's $90K+/year in capacity gained for $2,500 in tools.
A stack for a 50-lawyer mid-market firm
| Tool | Annual cost | Purpose |
|---|---|---|
| Harvey AI | $200K-$500K | Matter work AI |
| CoCounsel firm-wide | $60K | Research |
| Litera Replay | $100K | Document automation |
| Claude Enterprise (20 seats for power users) | $14K | General AI |
| Total | ~$370K-$670K/year | Firm-wide AI |
For a 50-lawyer firm doing $30M+ revenue, this typically saves 8-15 FTEs of capacity.
Data security is non-negotiable
For any AI touching client data:
- Enterprise tier required. Never consumer ChatGPT/Claude for privileged matter.
- No-training guarantee. Must be in writing.
- SOC 2 Type II minimum. Plus ISO 27001 for international firms.
- Privilege-preserved retention. Vendor must understand attorney-client privilege.
- Data residency. Match your client's jurisdiction.
The verdict
- Solo to mid-market lawyer → Claude Pro + Spellbook + CoCounsel
- AmLaw 100 firm → Harvey AI + Litera + Claude Enterprise
- PI / claims firm → EvenUp + general AI
- In-house counsel → CoCounsel + Spellbook + Claude Enterprise
AI for lawyers in 2026 isn't about replacement. It's about giving every lawyer the leverage that used to require junior associates.