AI Tool Comparison
Casetext CoCounsel vs ChatGPT
An objective side-by-side comparison based on global rankings, AI scores, and monthly user data.
Higher Ranked
Casetext CoCounsel
BusinessAI legal assistant (now part of Thomson Reuters) for legal research and document review.
AI Score0.0 / 100
#877
Global Rank
–
Monthly Users
VS
Higher Ranked
ChatGPT
Writing & ChatThe world's most popular AI chatbot for writing, coding, research, and everyday tasks.
AI Score97.4 / 100
#3
Global Rank
400M+
Monthly Users
Side-by-Side Comparison
| Casetext CoCounsel | ChatGPT | |
|---|---|---|
| Category | Business | Writing & Chat |
| Global Rank | #877 | #3 |
| AI Score | 0.0/100 | 97.4/100 |
| Monthly Users | – | 400M+ |
| Pricing | Paid | Freemium |
| Website | casetext.com | chat.openai.com |
Pros & Cons
Casetext CoCounsel
- Reached 1 million users across 107 countries by February 2026, a strong adoption signal
- Backed by Thomson Reuters with a substantial next-generation platform rework underway
- Won the 2026 American Association of Law Libraries New Product Award
- Pricing ($225-$900/user/month) positions it as a real enterprise investment, not a casual tool
- All cited case law and legal conclusions require independent attorney verification before use in filings
- Built for law firms and legal teams, not accessible for casual individual legal questions
ChatGPT
- Largest user base and ecosystem of any AI assistant, with the most third-party integrations
- Genuinely broad capability across writing, coding, research, and file analysis
- Custom GPTs allow tailoring the assistant to specific repeated tasks
- Frequent model updates keep it competitive on raw capability
- Free tier has usage limits and access to a lower-tier model than paid plans
- Can produce confident-sounding but incorrect information, especially without browsing enabled
- Breadth can mean less depth than a tool purpose-built for one specific workflow
- Data usage and training policies require attention for sensitive or regulated work