CoCounsel
CoCounsel supports legal research, document analysis, drafting, and review.
Overview
- Transparency
- 6 / 10
- Trust
- 100 / 100
Trains on your data
- Free
- No
- Paid
- No
- Opt-out
- Not captured
Incidents
00
Assessed SEP 21, 2026 · Checked by hand SEP 21, 2026
Thomson Reuters confirms SOC 2, ISO 27001 and HIPAA for CoCounsel Legal, prohibits content training, and publishes a GDPR DPA and ten subprocessors.
Trust breakdown
100 / 100
Overall trust score
Data and privacy
Trains on your data
No training on user data
Storage regions
Sub-processors
Data retention
Retention of user content and prompts is customized to fit customer needs and set up at the organization account level with the support of a Thomson Reuters client manager.
Deletion: We then delete user content and prompts in accordance with the customer's retention policy.
Powered by
CoCounsel utilizes a multi-model approach, integrating leading LLMs from Anthropic (Claude), OpenAI (GPT-4, o1-mini), and Google (Gemini 1.5 Pro). They also train their own custom models, evidenced by the acquisition of Safe Sign Technologies, which specializes in legal-specific LLMs. The company collaborates with these providers to create custom models and uses a proprietary Generative AI Platform for development and deployment.
Integrations and access
Integrations
Available on
Pricing
Enterprise
Custom
Pricing is not publicly available and is configured per firm based on factors like firm size, jurisdiction, and contract term. For firms with up to 10 attorneys, pricing can be obtained through an online configurator. For firms with more than 10 attorneys, a sales representative must be contacted for a quote. There are four plans: CoCounsel Essentials, Westlaw Advantage with CoCounsel Essentials, Practical Law Dynamic Tool Set with CoCounsel Essentials, and CoCounsel Legal. As a reference point, the Westlaw Advantage with CoCounsel Essentials plan for a solo attorney with All States & Federal coverage is $639.20/user/month on a 1-year term, or $639/user/month on a 3-year term.
Prices as listed on SEP 21, 2026; check the vendor's page.
Moat and openness
Moat
- Proprietary Model
- Proprietary Data
- Network Effects
- Switching Costmoderate
- Unique UX
- Distributionstrong
CoCounsel exhibits moderate defensibility. While it leverages a multi-model approach and is developing proprietary models, its core functionality relies on underlying LLMs, limiting a deep proprietary model moat. However, its strong distribution through Thomson Reuters and deep integration with established legal tools create significant switching costs and a strong market position within the legal tech sector.
Openness
- Open model weights
- Published research
- Open source contributions
- Transparency reports
- Public safety evals
Casetext prioritizes data privacy and security with a zero-storage policy for client data in CoCounsel and CARA A.I. They actively work to make legal information and analysis freely accessible, including through partnerships and crowdsourcing efforts. While they do not publish model weights, transparency reports, or public safety evaluations, their focus on secure and accessible legal resources indicates a moderate level of openness.
Timeline
- 2024-07-18CoCounsel launched the 'Ask Practical Law AI' skill, allowing users to search Practical Law's repository of legal guidance.
- 2024-05-09CoCounsel launched the 'AI-Assisted Research' skill, integrating Westlaw Precision's legal research within CoCounsel Core.
- 2024-04-18CoCounsel launched the 'Draft Discovery Response' (beta) skill for drafting requests for admission, requests for production, and interrogatories.
- 2023-12-14CoCounsel launched the 'Discovery Response' (beta) skill for reviewing discovery requests and receiving initial objections.
- 2023-11-15CoCounsel launched the 'Legal Research' skill (integrated with Westlaw Precision as AI-Assisted Research) and the 'Timeline' skill for reviewing documents to identify events.
- 2023-09-15CoCounsel launched the 'Draft Correspondence' skill for drafting emails and letters.
- 2023-06-01CoCounsel launched the 'Market Check' (beta) skill, allowing analysis of contract databases for trending terms.
- 2023-03-01Casetext unveiled CoCounsel, the first AI legal assistant, powered by OpenAI's large language model (GPT-4) customized for legal practice. It launched with skills including Legal Research, Search a Database, Summarize, Review Documents, Extract Contract Data, Contract Policy Compliance, and Deposition Questions.
Company
Casetext
- Founded
- 2013
- HQ
- San Francisco, California, United States
- Site
- www.casetext.com
Popularity
Not disclosed
monthly visits
CoCounsel is positioned as a professional-grade AI solution for legal, tax, audit, and accounting professionals, aiming to be the leading AI in these regulated industries.
Value and ROI
What it should move: It shortens research and document analysis.
Best fit
It fits legal teams that want research, drafting, and review connected to their Thomson Reuters sources.
The catch
Coverage depends on product access and available sources. Lawyers must inspect authorities, dates, jurisdictions, and source records.
In our stacks for