Legal research you can verify—in the AI assistant you already use.
Search and analyze U.S. primary law in the full Descrybe workspace, or bring Descrybe’s research and verification tools into ChatGPT, Claude, Microsoft 365 Copilot, Perplexity, and custom workflows. Keep citations, quotations, treatment, and source documents in view as you work.
Plans start at $25/month. Half off your first month. Cancel anytime.
One legal research foundation. More ways to work.
Use the full Descrybe Platform, bring Legal Engine into a supported AI assistant, or use the Open Connector for an authenticated internal workflow.
The Descrybe Platform brings guided research, brief review, citation checking, saved sessions, and exports into one workspace. Descrybe Legal Engine gives supported assistants and authenticated internal tools built with the Open Connector access to primary law, citation lookup, quote verification, treatment checks, and source text.
Descrybe Platform
Research complex questions, review briefs, search primary law, save sessions, and export work product to Word in one purpose-built workspace. Every workflow keeps the supporting authority available for review. Descrybe Legal Engine access is included.
Descrybe Legal Engine
Add source-grounded legal research to the AI assistant you already use. Descrybe finds and checks U.S. primary law, resolves citations, verifies quoted language, reviews treatment, and returns source material for you to inspect. One Legal Engine subscription works across supported assistants.
Don’t ask a general AI model to reconstruct the law from scratch.
Descrybe does more than send an assistant a stack of raw opinions and expect it to reconstruct the law on the fly. We structure U.S. primary law into focused research tools and machine-readable results, so assistants and agents can find authority, retrieve the right passages, follow citation relationships, check treatment, and keep sources visible.
Structured authority
Case identity, court, date, citations, separate opinions, treatment, and source links stay distinct instead of being buried in a single block of text.
Focused source passages
An assistant can retrieve a small, ranked set of passages for the issue, rule, quote, or fact pattern instead of loading every page of every opinion.
Tools for legal verification
Citation resolution, citing-case research, treatment checks, and quote verification let an assistant call the right capability at the right point in the work.
Use the same Legal Engine wherever the task belongs.
One Descrybe subscription works across supported assistants. The Open Connector extends the same source-law research layer to authenticated internal tools that support your own legal research.
Trusted by thousands of paying subscribers and institutionally licensed users.
Lawyers, legal professionals, researchers, educators, and students use Descrybe through paid subscriptions and organization-sponsored access.
Beyond Confidently Wrong: How Purpose-Built AI Mitigates Legal Reasoning's Hidden Risk
Our published benchmark across 200 Multistate Bar Exam questions found that DescrybeLM, grounded in verified primary law, scored 99.7% on reasoning quality and answered every question correctly, outperforming the foundation models tested. The study showed why grounding matters: legal AI answers are more reliable when reasoning is tied to verified primary law, rather than model confidence alone. Now ChatGPT, Claude, Microsoft 365 Copilot, and Perplexity users have that foundation through Descrybe Legal Engine.
What people are saying
From legal professionals, researchers, and practitioners.
In the news
Coverage and announcements.
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Descrybe Brings Legal Intelligence Plugin to ChatGPT Enterprise
Descrybe announced that the Descrybe Legal Engine plugin is coming to ChatGPT Enterprise, bringing specialized legal research directly into ChatGPT. The plugin helps users identify relevant authority, understand how cases and laws relate, and work from verifiable primary sources, with focused legal information structured specifically for AI assistants to use efficiently. The launch is especially meaningful because Descrybe itself was built from the beginning using OpenAI technology.
September 17, 2026
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Descrybe Update
Susan E. Guthrie Joins Descrybe as Strategic Advisor
Descrybe has named Susan E. Guthrie as a strategic advisor. A leading attorney, mediator, educator, author, and legal innovation thought leader, Guthrie brings more than 35 years of experience helping legal professionals navigate change. She joins Descrybe as generative AI moves deeper into everyday legal workflows, advising the company as it expands access to reliable legal research and intelligence across its platform, leading AI assistants, and custom AI tools and workflows.
September 15, 2026
Press Release
Descrybe Update
Descrybe Brings Legal Research and Intelligence to Microsoft 365 Copilot
Descrybe Legal Engine is now available in Microsoft 365 Copilot, where Microsoft highlighted Descrybe as one of six new Legal Services offerings. The integration brings Descrybe’s legal research and intelligence directly into Copilot, including Cowork, where users can move from legal research to Microsoft Word work product within a single workflow.
September 02, 2026
Press Release
Descrybe Update
Introducing the Descrybe Open Connector
Descrybe Open Connector gives law firms and legal organizations a new way to build, customize, and control AI-powered legal research tools and workflows on top of the Descrybe Legal Engine. Through an open-source Python SDK and reusable legal research workflows, organizations can combine their own expertise and processes with Descrybe’s structured primary law, citation intelligence, treatment analysis, and verification capabilities—making it easier to create sophisticated legal tools without rebuilding the underlying research infrastructure.
July 24, 2026
Press Release
New to AI legal research? Start here.
Descrybe helps legal professionals use AI with the law still in view: citations, quotes, treatment, and source documents remain visible and verifiable.