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AI detection for legal professionals

AI detection for law firms

Protect your firm's reputation and mitigate liability. The most accurate tool for AI legal document review to detect ChatGPT, verify legal citations, and ensure authentic authorship in every filing.

Detects AI Assistance
Free Credits
99.9%+ Accuracy
3rd-Party Verified

SOC 2 Type 2 certified. GDPR compliant. Your data stays yours.

University of Maryland

Proven the most reliable and accurate AI detector on the market by third party researchers, including the University of Maryland and the University of Chicago.

Trusted by Compliance &
Enterprise Teams
CanvasGoogle ClassroomQuoraTremauThe Transparency CompanyNewsguardInsperaCanvasGoogle ClassroomQuoraTremauThe Transparency CompanyNewsguardInspera

Our product

GenAI is here. So are the risks.

AI Segment Analysis

Prevent Hallucinations

Generative AI is prone to inventing case law. Use our detector to flag AI-generated briefs that require enhanced scrutiny before they reach the court.

AI Assistance Detection

Secure Client Confidentiality

We are SOC 2 Type 2 certified and GDPR compliant. Unlike free checkers, we never use your sensitive legal contracts or discovery data to train our models.

Plagiarism Checker

Defensible Due Diligence

Create an audit trail. Using a verified AI legal checker demonstrates professional competence and reasonable care in the age of AI.

Legal workflows

AI coverage
for legal workflows

From contract drafting to discovery, Pangram provides an AI detection tool across every stage of the legal document lifecycle.

Contract & IP Verification

Ensure drafted clauses are original. Verify AI for legal contracts to protect intellectual property and avoid generic, unenforceable LLM boilerplate.

Research & Memo Validation

Paralegals and associates use AI for legal research summaries daily. Verify their output to distinguish between human analysis and machine summarization.

Bulk Document Review

Scan thousands of files instantly. Use our API to perform AI legal document review on data rooms and discovery dumps to identify synthetic content.

Supports 20+ languages

Our AI detection works across more than 20 languages, making it a truly global, multilingual solution for institutions and businesses worldwide.

Out-performed trained humans

Independent studies have shown that Pangram's AI detection outperforms trained human readers in identifying AI-generated content.

Detects humanized text

Pangram can detect AI-generated text even after it has been "humanized," or processed by tools that attempt to evade AI detection, ensuring reliable detection.

Verified accuracy

Our accuracy and reliability have been independently verified by third-party researchers and educational institutions.

Solutions

Protect authenticity in your firm

Hard Negative Mining illustration

Avoid False Positives

Legal language is formal and repetitive — traits that confuse standard detectors. Pangram uses “Hard Negative Mining” to ensure human-written legalese isn't falsely flagged as AI.

Granular Reporting illustration

Granular Reporting

Don't reject the whole document. Our “Mixed Content” scoring highlights exactly which clauses are AI-generated vs. human-edited, allowing for nuanced review.

Features

Integrate detection into
your firm's tech stack

01

Bulk Document Review

Scan thousands of documents at scale. Integrate AI detection into your document management system for automated review of contracts, briefs, and discovery materials.

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Bulk Document Review

03

API
Solution

Our API is perfect for high-volume legal document review with custom pricing options for law firms and enterprise.

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02

Google Docs &
Chrome Extension

Check legal documents in Google Docs, email, or any web-based platform without leaving your browser. One click to scan.

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Chrome Extension

FAQs

AI Detection FAQs

Looking for answers? Explore common questions
and get the information you need, all in one place.

AI detection should be treated as a probabilistic signal, not dispositive proof. It is best used as a due-diligence and risk-flagging tool that informs human review. In practice, firms rely on detection results to identify passages requiring closer scrutiny by a qualified attorney or expert witness rather than as standalone evidence.
No. Documents are processed ephemerally and are not retained, indexed, or reused. Content is never used for model training or shared across customers. This design supports confidentiality obligations, trade-secret protection, and privilege preservation common in legal practice.
Yes. Pangram identifies AI-assisted authorship, not just fully generated text. This allows firms to distinguish between entirely AI-drafted sections, AI-generated drafts that were subsequently edited by a human, and fully human-authored content. This is particularly useful for validating pleadings, contracts, and memoranda that may have originated from generative tools but were refined during legal review.
Legal writing presents unique challenges due to its formal tone, structured syntax, and precedent-based language. Pangram is tuned to reduce false positives caused by boilerplate clauses, statutory language, and citation-heavy sections. Results are delivered with granular confidence signals so attorneys can apply professional judgment rather than relying on binary labels.
Yes. Many firms use AI detection as part of internal review workflows to validate junior associate drafts, ensure compliance with firm AI-use policies, review filings before submission, and audit vendor- or contractor-produced legal content. This supports consistent standards without restricting legitimate productivity tools. Engineering teams use similar workflows — see our AI code detection for developers.
Yes. Pangram's processing model is designed to minimize data exposure, avoid persistent storage, and prevent cross-document learning. This aligns with common interpretations of confidentiality obligations under professional conduct rules, though firms should always review usage under their own risk framework.
Yes. Pangram offers API access that can be integrated into document management systems (DMS), contract lifecycle management (CLM) platforms, internal review tools, or custom workflows. This allows detection to occur before filing, execution, or client delivery, rather than as an after-the-fact audit.
No. AI detection is a decision-support tool, not a substitute for legal judgment. Its value lies in surfacing risk signals efficiently so attorneys can focus attention where it matters most — similar to how e-discovery, contract analytics, and citation checkers are used today.

Explore more

AI detection for
every organization

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AI code detection for developers and engineering teams. Detect AI-generated code from ChatGPT, Copilot, and Claude in Python, Java, C++, and more.

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For Publishing & Media

AI detection for publishers and editorial teams. Protect editorial integrity and verify content authenticity at scale with the lowest false positive rate.

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For Universities

AI detection for universities and higher education. Verify student assignments, screen research submissions, and protect institutional reputation.

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Protect your firm. Start detecting AI today.

Mitigate liability, secure client confidentiality, and maintain the highest standards of professional diligence.

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