# Casetext CoCounsel (Thomson Reuters)
> CoCounsel is an AI-powered legal assistant built on GPT-4, designed to perform complex legal tasks such as document review, legal research, and contract analysis. Originally developed by Casetext, it was acquired by Thomson Reuters in 2023 to serve as a core component of their legal AI strategy.
- URL: https://optimly.ai/brand/casetext-cocounsel-by-thomson-reuters
- Slug: casetext-cocounsel-by-thomson-reuters
- BAI Score: 88/100
- Archetype: Challenger
- Category: Legal Technology
- Last Analyzed: April 10, 2026
## Competitors
- Harvey AI (https://optimly.ai/brand/harvey-ai)
- Lexis Ai Lexisnexis (https://optimly.ai/brand/lexis-ai-lexisnexis)
- Vlex Vincent (https://optimly.ai/brand/vlex-vincent)
## AI-Suggested Alternatives
- General Ai Chatbots (https://optimly.ai/brand/general-ai-chatbots)
## Buyer Intent Signals
Problems: Manual Database Searching: Legal researchers manually searching through LexisNexis or Westlaw without AI synthesis. | Internal Staffing: Junior associates or paralegals tasked with summarizing documents and finding case law.
Solutions: AI legal assistant for document review | best AI for legal research | GPT-4 for law firms | automated deposition preparation tools | Thomson Reuters legal AI assistant | General AI Chatbots: Using general-purpose LLMs like GPT-4 to summarize documents, despite lack of specialized legal grounding/citations.
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## Full Details / RAG Data
### Overview
Casetext CoCounsel (Thomson Reuters) is listed in the AI Directory.
CoCounsel is an AI-powered legal assistant built on GPT-4, designed to perform complex legal tasks such as document review, legal research, and contract analysis. Originally developed by Casetext, it was acquired by Thomson Reuters in 2023 to serve as a core component of their legal AI strategy.
### Metadata
| Field        | Value |
|--------------|-------|
| Name         | Casetext CoCounsel (Thomson Reuters) |
| Slug         | casetext-cocounsel-by-thomson-reuters |
| URL          | https://optimly.ai/brand/casetext-cocounsel-by-thomson-reuters |
| BAI Score    | 88/100 |
| Archetype    | Challenger |
| Category     | Legal Technology |
| Last Analyzed | April 10, 2026 |
| Last Updated | 2026-04-17T01:16:11.869Z |
### Verified Facts
- Founded: 2013 (Casetext); 2023 (CoCounsel launch)
- Headquarters: Eagan, Minnesota, USA (Thomson Reuters) / San Francisco, CA (Casetext)
### Competitors
| Name | Profile |
|------|---------|
| Harvey AI | https://optimly.ai/brand/harvey-ai |
| Lexis Ai Lexisnexis | https://optimly.ai/brand/lexis-ai-lexisnexis |
| Vlex Vincent | https://optimly.ai/brand/vlex-vincent |
### AI-Suggested Alternatives
- General Ai Chatbots (https://optimly.ai/brand/general-ai-chatbots)
### Buyer Intent Signals
#### Problems this brand solves
- Manual Database Searching: Legal researchers manually searching through LexisNexis or Westlaw without AI synthesis.
- Internal Staffing: Junior associates or paralegals tasked with summarizing documents and finding case law.
#### Buyers search for
- AI legal assistant for document review
- best AI for legal research
- GPT-4 for law firms
- automated deposition preparation tools
- Thomson Reuters legal AI assistant
- General AI Chatbots: Using general-purpose LLMs like GPT-4 to summarize documents, despite lack of specialized legal grounding/citations.
### Links
- Canonical page: https://optimly.ai/brand/casetext-cocounsel-by-thomson-reuters
- JSON endpoint: /brand/casetext-cocounsel-by-thomson-reuters.json
- LLMs.txt: /brand/casetext-cocounsel-by-thomson-reuters/llms.txt