AI legal assistant
Deliver professional results in less time with CoCounsel CoreÂ
Tap into the power of professional-grade generative AI to perform essential legal tasks so you have more time for higher-value work
Equip your GenAI legal assistant with the specialized skills that are core to your work
Accelerate time-intensive document review and discovery
Upload a set of documents, ask questions about the critical information they contain, and your generative AI (GenAI) assistant will do the rest. CoCounsel uses the Review Documents skill in CoCounsel Core to quickly read through your documents, offer comprehensive analysis, and provide citations to trusted information sources to give you a more thorough understanding of the task at hand.
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Effortlessly find and extract essential information from databases
Spend less time sorting through data and focus more on creative and strategic work. CoCounsel uses the Search a Database skill within CoCounsel Core to find important information in a large database of uploaded files, such as emails, a brief bank, or a set of contracts, based on the questions you ask about the issue you seek to understand better.
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Interpret and summarize critical data with exceptional speed
Quickly make sense of any document, including contracts, court opinions, and transcripts, without missing crucial details. CoCounsel taps into the CoCounsel Core Summarize skill to provide a brief, detailed, or comprehensive summary of long, dense, complex documents containing specialized language.
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Identify key differences among multiple documents
Use generative AI to simplify the comparison of important legal documents such as contracts, purchase agreements, and bylaws. CoCounsel uses the Compare Documents skill within CoCounsel Core to read entire documents faster than humanly possible and provide a thorough, nuanced analysis of how they differ.
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Find the best CoCounsel Core plan for your team or organization
Law firm
For both litigators and transactional lawyers, CoCounsel Core's robust, professional-grade GenAI abilities empower you to prepare client work with unprecedented efficiency, accuracy, and thoroughness.
Corporate
CoCounsel Core skills arm your team to quickly and comprehensively identify and mitigate risk, extract critical contract data, and draft effective contracts so you can better serve your stakeholders.
Government
CoCounsel Core offers expert-level GenAI skills for the public sector, empowering government legal professionals to reduce risk, cut costs while maintaining quality, and deliver results in record time.
The value of CoCounsel Core
Transforming the way work gets done
Save time by delegating routine, time-consuming tasks like searching for, summarizing, or comparing essential data sources. Gain a critical edge by freeing yourself to focus more of your time and energy on high-value creative and strategic work that maximizes the value of your expertise. Secure, private, and rigorously tested, CoCounsel Core lets you confidently access its set of skills wherever you work via Microsoft 365 integration.
Grounded in reliable data sources
Harness the power of large-language models (LLM) to search, extract, and analyze critical information. CoCounsel Core draws from your own sources, including uploaded documents and shared datasets.
Aggressively tested and authenticated
Practice with confidence, knowing that our GenAI experts have run more than 1,000,000 tests on CoCounsel Core, including a daily battery of tests that simulate the real-life use cases encountered by legal professionals.
Adheres to rigorous security policies and practices
All customer data within CoCounsel Core is subject to our rigorous security policies. Our GenAI solutions access partner LLMs through private, dedicated servers. We contractually prohibit partners from seeing customer queries or documents, and we never use customer data to train third-party models.
Frequently asked questions
At Thomson Reuters, we do not use your user content and user prompts to train or improve CoCounsel Core or any third-party GenAI LLMs, we do not use them in Thomson Reuters or third-party output, and neither OpenAI GPT nor Google Gemini store them.
Thomson Reuters GenAI third-party partners, such as OpenAI and Google, are contractually prohibited from using any customer data to train their models. Additionally, where applicable, we have established systemic controls to turn off third parties' abuse monitoring solutions to ensure there is no human access to Thomson Reuters customers' data or inclusion of that data in third-party models.
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. We then delete user content and user prompts in accordance with the customer's retention policy. Users also have the ability to delete their content and prompts in the product at any time.
Thomson Reuters secures all data in transit via TLS 1.2, and symmetric encryption (AES-256) protects data at rest. All interactions with GenAI LLM providers use zero-retention API calls. All GenAI LLM requests originating from Thomson Reuters are processed under the identity "Thomson Reuters," never identifying the Thomson Reuters customer who made the request.
Thomson Reuters analyzes de-identified usage information to manage account health, plan for capacity, and develop our product roadmap.
Systematic procedures and hosting are in the U.S. We process all interactions with OpenAI GPT and Google Gemini in the U.S. We host backup data in separate availability time zones in the U.S.
Region-based hosting has been available in the UK, Australia, and 91Ô´´ since December 2024.
Thomson Reuters has developed and implemented prompting "guardrails," which ensure our GenAI-based products will only produce responses from content drawn from a clearly defined and limited set of verified information, such as our own content databases. This practice restricts the model's ability to produce potentially objectionable content, as it does not source information from the internet.
Our Trust Team of attorneys manually creates and peer reviews tests for CoCounsel that represent real-world legal work. After comparing CoCounsel’s results to their manually created ideal response, they train an LLM to do regular, automated reviews. Every night, CoCounsel completes more than 1,500 such tests under attorney oversight, and in total, we’ve run more than one million tests on CoCounsel since its launch. For an in-depth look at our testing process, read our .
Any user content and prompts remain the user's property to the extent the user has such ownership rights. Subject to applicable law and Thomson Reuters terms and conditions, users own the outputs generated by CoCounsel Core.
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