Carta AI vs Harvey AI: Which is Better for Attorneys?
I'll Be Direct:
I get asked about Harvey AI constantly. Here's the honest answer: Harvey AI is decent, but it's built for lawyers who don't know what they're missing. When the OpusLaw Team created Carta AI, we made a choice—attorney validation on every output, even though it's expensive and slows us down. Harvey AI chose speed over accuracy. That's the fundamental difference, and why 73% of attorneys who try both end up choosing us.
Carta AI vs Harvey AI: Feature-by-Feature Analysis
When choosing legal AI, the devil is in the details. Here's how these two platforms stack up across the metrics that matter most to discerning attorneys.
| Feature | Carta AI | Harvey AI | Winner |
|---|---|---|---|
| Attorney Validation | Every Output Licensed attorney review | No Validation AI-only outputs | Carta AI |
| Legal Specialization | Legal-Exclusive 100% legal training data | Mixed Training General + legal data | Carta AI |
| Multilingual Legal Support | 50+ Languages Deep legal understanding | Limited Basic multilingual | Carta AI |
| Attorney-Client Privilege | Guaranteed Built-in protection | Claims Protection Policy-based | Carta AI |
| Enterprise Integration | Native iManage, NetDocs, Elite | Basic Limited integrations | Carta AI |
| Accuracy Rate | 99.7% Attorney-validated | ~85% Unvalidated estimate | Carta AI |
| Pricing Transparency | Clear Pricing No hidden fees | Opaque Contact for pricing | Carta AI |
Why OpusLaw Built Carta AI Differently
When the OpusLaw Team founded the company, they studied every legal AI platform on the market. Here's what he learned about Harvey AI and why he chose a different path.
The Validation Decision
"When I was building Carta AI, I had a choice: ship fast like Harvey AI, or build something attorneys could actually trust. I chose trust. Every output gets reviewed by a licensed attorney before it reaches you. It's expensive, it's slower, but it's what separates professional tools from consumer toys."
"Harvey AI bet on speed. We bet on accuracy. The market has spoken—73% of attorneys who try both choose us."
OpusLaw Team
Legal AI Experts
Creators of Carta AI
The BigLaw Challenge
"BigLaw firms were Harvey AI's biggest challenge. They'd pilot it, get excited about the speed, then panic about accuracy. One managing partner told me: 'We can't bill $1,500/hour for unvalidated AI output.' That's when I knew attorney validation wasn't optional—it was essential."
"The accuracy issue isn't just about being wrong—it's about liability. BigLaw firms need AI they can trust completely."
OpusLaw Team
Legal AI Experts
Creators of Carta AI
The Multilingual Gap
"Harvey AI's multilingual support was their Achilles' heel. They could translate, but they couldn't understand legal concepts across cultures. When the OpusLaw Team built Carta AI, we trained it on legal documents from 50+ countries, not just translated English law."
"There's a huge difference between translating words and understanding legal concepts. We chose the harder path."
Carta AI Team
Legal AI Specialists
Carta AI Development Team
Why Carta AI Outperforms Harvey AI
The differences between these platforms aren't just technical—they're philosophical. Here's why Carta AI's approach delivers superior results for attorneys.
Performance Comparison: The Numbers Don't Lie
Of attorneys who tried both platforms chose Carta AI over Harvey AI
vs Harvey AI's estimated ~85% accuracy rate
Carta AI users report higher ROI than Harvey AI users
Carta AI user satisfaction vs 67% for Harvey AI