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These are the 2 leading AI Legal Agent platforms in 2026. Compared head-to-head on pricing, features, integrations, and deployment options.
Top 2 picks: Harvey, Casetext (CoCounsel). Compare on pricing model, integrations with your existing stack, and deployment options (SaaS vs VPC vs on-prem).
Comparison table
| Vendor | Starting price | Pricing model | Best for | Free tier |
|---|---|---|---|---|
| Harvey | Custom | custom | Am Law 200 firms | — |
| Casetext (CoCounsel) | Custom | per seat | Mid-size law firms | — |
In depth
Harvey builds vertical AI for elite law firms — drafting, due diligence, M&A, and litigation prep. Partnerships with Allen & Overy, PwC.
Casetext's CoCounsel handles legal research, document review, and deposition prep. Acquired by Thomson Reuters in 2023.
FAQ
Top picks: Harvey, Casetext (CoCounsel). Each takes a different approach — pick based on your top constraint (pricing model, integration depth, deployment, or compliance need).
Curated by category coverage, not by funding or press attention. Each vendor scored against integration depth, pricing transparency, security/compliance posture, and deployment options. We prefer vendors with clearly documented pricing over those that gate everything behind 'Contact sales'.
Quarterly. The underlying vendor database is hand-curated and changes when vendors launch, change pricing, or release major capabilities. Most recent refresh: 2026-09-14.
Skip the vendor evaluation
Custom builds from $2,000, managed workflows from $197/month — in your tools, with public prices and a written scope before any invoice.