Descrybe is a verifiable legal research and intelligence platform built for anyone whose work depends on the law. It combines U.S. primary law with structured legal data and research tools to help people and AI systems find, assess, and verify legal authority.
You can use Descrybe through the full Descrybe Platform or bring its legal research capabilities directly into supported AI assistants and custom tools through the Descrybe Legal Engine.
The Descrybe Platform is the full legal research workspace at descrybe.com. It includes DescrybeLM Deep Research for guided, citation-backed legal analysis; Descrybe Review for checking briefs and documents; the Legal Research Toolkit for direct research, source review, and citation analysis; saved research sessions; and exports.
A Platform subscription also includes access to the Descrybe Legal Engine across supported AI assistants and apps.
The Descrybe Legal Engine is Descrybe’s legal research and intelligence layer for AI. It connects supported AI assistants and tools to Descrybe’s structured U.S. primary-law corpus and focused legal research capabilities.
Through the Legal Engine, an AI assistant can search primary law, resolve citations, retrieve sources and passages, check later treatment, verify quoted language, and perform other legal research tasks. The assistant remains the conversational and reasoning environment; Descrybe provides the legal research layer underneath it.
The Legal Engine is built on the same structured primary-law corpus and legal intelligence layer that power the Descrybe Platform.
Choose the Descrybe Legal Engine if you mainly want to conduct legal research inside a supported AI assistant you already use. Choose the Descrybe Platform if you want the full Descrybe workspace for guided research, brief review, direct search, saved work, source inspection, and exports.
You do not have to choose only one workflow. The Descrybe Platform includes Legal Engine access, so Platform subscribers can also use Descrybe inside supported AI assistants.
Access to primary law is necessary, but access alone is not a legal research system. Descrybe prepares and structures primary law so people and AI systems can work with the relationships inside it, not simply retrieve documents.
Descrybe structures cases, laws and rules, citations, courts, legal issues, treatment signals, and source passages. Its research tools use signals such as court, jurisdiction, citation relationships, and later treatment to help surface relevant authority, resolve citations, analyze treatment, verify quotations, and retrieve source material.
Without that structure, an AI system may have access to legal text but still has to reconstruct much of the legal research process from the underlying documents. Descrybe provides that research and intelligence layer in advance.
That is the difference between access to primary law and a system built to research the law.
Descrybe is a purpose-built legal research and intelligence system engineered specifically for legal work. We built our structured U.S. primary-law corpus, retrieval and citation infrastructure, legal intelligence tools, and research orchestration.
Foundation models are one component of the system; Descrybe is not training a general-purpose foundation model from scratch. DescrybeLM Deep Research uses foundation models within the Descrybe Platform, while the Descrybe Legal Engine lets supported AI assistants call Descrybe’s research tools and structured legal data.
The product is the specialized legal research system built around the model: the data preparation, structure, retrieval, citation intelligence, verification, and research workflows.
No AI system is perfect, and we will not claim otherwise. Both Descrybe offerings are designed to reduce the risk of unreliable legal research output by grounding research in Descrybe’s structured U.S. primary-law corpus and keeping the source trail available for review.
In the Descrybe Platform, DescrybeLM Deep Research works from retrieved primary law, links cited authorities back to their sources, provides citation-checking tools, and keeps underlying authorities available for inspection. It is also designed to surface uncertainty or missing information rather than fill gaps with unsupported answers.
With the Descrybe Legal Engine, supported AI assistants can use Descrybe tools to search primary law, resolve citations, verify quotes, inspect treatment, and retrieve source material instead of relying only on model memory. We also publish methodology and benchmark materials so users can evaluate the evidence for themselves.
Yes. Verification is built into both Descrybe products.
In the Descrybe Platform, DescrybeLM Deep Research provides supporting authorities and citations linked back to primary law so you can inspect the sources yourself. Descrybe Review and the Legal Research Toolkit provide additional ways to check citations, quotations, treatment, and source text.
With the Descrybe Legal Engine, supported AI assistants can return Descrybe source material and tool results alongside their analysis. The goal is a clear path from the answer back to the law. Descrybe’s verification tools support source review; they do not certify that an entire legal analysis is correct.
The Cytator™ helps you assess how a case has been treated by later courts at both the case level and the legal-issue level. You can review later citing decisions and see whether an authority or issue has been followed, limited, distinguished, criticized, overruled, or otherwise treated by later courts.
The Cytator™ is available in the Descrybe Platform and through the Descrybe Legal Engine in supported AI assistants and tools. As with any treatment signal or citator workflow, we recommend reviewing the citing decisions and original opinions before relying on an authority.
Yes, as a research aid. Descrybe can help you find, organize, analyze, and verify legal sources, but it does not replace professional judgment or direct review of important authorities.
Before relying on AI-assisted work, review the underlying law and follow any professional, court, client, or organizational rules that apply. See Descrybe’s Terms of Service and Professional Responsibility page for more information.
Yes. Descrybe maintains a dedicated Professional Responsibility page with general educational information for legal professionals using AI-assisted research. It covers topics including competence and supervision, confidentiality, verification and candor, client communication, fees, and court and jurisdiction-specific requirements.
The information is educational and does not constitute legal or ethics advice. Legal professionals should consult the rules and requirements applicable to their own work.
Descrybe’s U.S. primary-law corpus includes federal and state case law and Laws & Rules materials such as statutes, regulations, constitutions, session laws, and court rules. It also includes bankruptcy courts, specialized and agency tribunals, and tribal courts.
Coverage varies by jurisdiction and source. The Descrybe Coverage page shows current courts and tribunals, opinion counts, available date ranges, and the availability of Laws & Rules collections so you can check the exact coverage relevant to your research.
Descrybe updates its corpus as new source material becomes available. Timing varies by court, agency, jurisdiction, and publisher: some sources publish quickly, while others may appear after a delay.
For case law, the Descrybe Coverage page shows the first and most recent opinions currently observed in Descrybe for each court or tribunal. The most recent date is a coverage indicator, not a guarantee that every newer opinion has already been received. For time-sensitive research, check the relevant coverage entry and underlying source before relying on completeness.
Descrybe is built on an independently processed and structured U.S. primary-law corpus of approximately 300 million legal records. We source, process, and structure the data used by Descrybe, with provenance and source traceability built into the corpus.
Judicial opinions, statutes, regulations, and other primary-law materials come from known sources and, where applicable, appropriate licensing arrangements. The underlying primary law is public legal authority; what Descrybe builds is the structured corpus and intelligence layer used to research it.
Provenance matters because reliable legal research depends not only on finding text, but on knowing what the source is and being able to trace the result back to the underlying law.
Descrybe Review is the brief and document review workflow in the Descrybe Platform. It helps you check citations, quoted language, source support, pinpoint references, and how authorities are being used before you rely on a draft.
Descrybe Review can resolve full and short-form citations, including many Westlaw and Lexis citations; compare quoted language with source opinions; evaluate whether an authority appears to support the attached proposition; and flag unresolved or unusual uses for closer review. Results depend on the available source material and successful citation resolution. It is designed for quality control and citation triage, not as a substitute for final professional review.
One Descrybe Legal Engine subscription works across supported AI assistants and apps. Current supported environments include ChatGPT, Claude, Microsoft 365 Copilot, and Perplexity.
Developers and organizations can also use the Descrybe Open Connector to bring Legal Engine capabilities into authenticated internal apps, scripts, agents, and firm workflows. Supported environments will continue to expand as new integrations become available.
Yes. The Descrybe Open Connector lets you bring Legal Engine capabilities into authenticated internal apps, scripts, agents, and firm workflows without rebuilding the legal research layer yourself. The open-source Python package includes setup guidance, examples, and instructions designed to work with AI coding agents as well as traditional development workflows.
Descrybe also publishes Legal Research Workflow Packs with ready-made research patterns for tasks such as research roadmaps, authority finding, and citation and quote auditing.
Use of the Open Connector is subject to Descrybe’s Terms of Service and requires appropriate Descrybe access for each user.
The Descrybe User Guide includes setup instructions, product guidance, tutorials, troubleshooting, Open Connector documentation, workflow guidance, and release notes.
If you still need help, submit a support ticket from the Platform or contact Descrybe directly.
Start with the Descrybe Learn section. It includes visual explainers on how Descrybe turns legal text into legal intelligence, how AI assistants use the Legal Engine, and how custom tools can use the Open Connector.
The Legal AI Starter Lab provides beginner-friendly, hands-on lessons for understanding source-grounded legal AI, connecting Descrybe to an assistant, testing whether the tool was actually used, and developing better habits for checking AI-assisted legal research. The Resources section also includes plain-English guides on legal AI, citation verification, primary-law grounding, and source-controlled workflows.
Descrybe has two individual subscription options.
The Descrybe Legal Engine is $25/month. It gives supported AI assistants and apps access to Descrybe legal research capabilities, including primary-law search, citation resolution, treatment review, quote verification, source retrieval, and other research tools.
The Descrybe Platform is $50/month. It includes the full Descrybe workspace with DescrybeLM Deep Research, Descrybe Review, the Legal Research Toolkit, saved work, history, source review, and exports. A Platform subscription also includes Descrybe Legal Engine access at no additional Descrybe charge.
Subscriptions are month-to-month. Each plan includes its full feature set. Current usage limits, including the monthly allowance for DescrybeLM Deep Research, are listed on the Pricing page.
You do not need a separate Descrybe subscription for each supported AI assistant or app. One active Descrybe Legal Engine subscription works across supported environments for your Descrybe account.
Your access to ChatGPT, Claude, Microsoft 365 Copilot, Perplexity, or another third-party environment is separate from Descrybe. Any subscription, license, or administrator approval required by that provider is governed and purchased separately.
Eligible subscribers can change plans through their Descrybe account. The account page will show the available change, its timing, and any billing effect before confirmation. Because the Descrybe Platform includes Legal Engine access, moving between plans changes the Descrybe features available to you without requiring separate Legal Engine access.
Yes. Eligible new subscriptions receive 50% off the first month: $12.50 instead of $25 for the Descrybe Legal Engine, or $25 instead of $50 for the Descrybe Platform. The discount is applied automatically at checkout; LAUNCH50 can also be entered if needed. Subscriptions are month-to-month, and you can cancel anytime.
Because serious legal research should not be a luxury. Descrybe is self-funded and was engineered from the ground up for efficiency, which lets us keep pricing straightforward and accessible.
Plans start at $25/month for the Descrybe Legal Engine, while the full Descrybe Platform is $50/month with Legal Engine access included.
Yes. Descrybe offers organizational access and discounted pricing for law firms, corporate legal departments, and other legal organizations.
Organizational plans can include named-user accounts, centralized billing, onboarding, and support for approved enterprise AI environments. We also offer discounted firm-wide pricing for organizations that want to make Descrybe broadly available across their teams.
Contact us to discuss organizational access and current pricing.
Yes. Descrybe offers special academic and institutional pricing for law schools, universities, libraries, and other educational institutions.
Descrybe is also available through NELLCO’s e-resources program at special NELLCO pricing.
If your institution is a NELLCO member, contact NELLCO for pricing and access. If your institution is not a NELLCO member, contact Descrybe directly to discuss academic or institutional pricing.
Descrybe publishes dedicated Security, Privacy, and Trust and Transparency documentation with current information about our security practices and data handling. Visit those pages for the latest details.
No. Descrybe does not use customer prompts, files, or research history to train Descrybe-owned AI models. For details about how data may be processed by Descrybe and its service providers to deliver the service, see our Privacy, Security, and Trust and Transparency documentation.
Connecting the Descrybe Legal Engine does not by itself give Descrybe general access to your AI assistant account, organization tenant, email, workspace, document repositories, or files.
Instead, the AI assistant uses Descrybe through specific tool calls. The Legal Engine provides 13 specialized legal research tools, and the assistant chooses which tools it needs based on the task, such as searching primary law, resolving a citation, checking subsequent treatment, retrieving a source passage, or verifying a quotation. A tool request may include information needed to perform that research, including text selected from your question or a document when relevant to the request. Descrybe receives that specific request and returns the corresponding legal research results.
Your AI provider remains a separate service with its own account, privacy, security, and administrator settings. Organizations should review both Descrybe’s documentation and the settings and policies of the AI environment they use.
You can cancel your subscription at any time through Manage Subscription in your Descrybe account. Your subscription will remain active through the end of your current billing period and will not renew after that.
Payments are non-refundable. If you believe there has been a billing error, please contact us so we can review it.
Email us at [email protected], submit a support ticket from the Platform, or call us at 617-752-2020. For organizational access, procurement, security, or other questions, contact us and we’ll route your request to the right person.