Best Legal AI Software in 2025
An honest, feature-by-feature comparison of the top legal AI tools. Find the right solution for your law firm's size, budget, and practice areas.
Feature Comparison Table
| Software | AI Built-in | Practice Mgmt | Billing | BYOK | Templates | Pricing |
|---|---|---|---|---|---|---|
| FRITH | 301 | Free – $299/mo | ||||
| Harvey AI | — | — | — | Custom | Enterprise only | |
| Clio | — | Limited | $39 – $149/mo | |||
| CoCounsel (Thomson Reuters) | — | — | — | Limited | Enterprise only | |
| PracticePanther | — | — | None | $59 – $99/mo | ||
| MyCase | — | — | None | $39 – $79/mo | ||
| Smokeball | — | Limited | Contact sales | |||
| Filevine | — | Limited | Contact sales |
Why Lawyers Choose FRITH
301 AI Templates
Purpose-built for 15+ practice areas. No other tool comes close to this breadth of legal AI coverage.
BYOK Architecture
Connect your own API keys. Zero markup. Your data never touches our AI infrastructure.
All-in-One Platform
AI + matter management + billing + communications. No need to stitch together multiple tools.
Frequently Asked Questions
What is legal AI software?
Legal AI software uses artificial intelligence — including large language models (LLMs) — to assist lawyers with research, drafting, document review, billing, and practice management tasks.
Which legal AI software is best for solo practitioners?
FRITH is the top choice for solo practitioners because it combines a free tier, 301 AI templates, full practice management, and BYOK architecture so you only pay for the AI you use.
Is legal AI software secure enough for attorney-client privilege?
The best legal AI tools like FRITH are SOC 2 Type II certified, ISO 27001 compliant, and offer BYOK so your data never touches the AI provider's training pipeline.
What is BYOK in legal AI?
BYOK (Bring Your Own Key) means you connect your own API keys from AI providers like OpenAI, Anthropic, or Google. Your prompts and responses stay under your control, and you pay provider rates directly with zero markup.
How much does legal AI software cost?
Prices range from free (FRITH) to enterprise-only pricing (Harvey AI, CoCounsel). Most mid-range tools charge $39–$149/month per user. FRITH is unique in offering a free tier with AI capabilities.