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Updated 11d ago
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Lex Machina
4.8
Paid Highly praised for its 'Lexpressions' data cleaning which prevents the 'garbage in, garbage out' problem typical of legal search engines.
Quantify outcomes and outmaneuver opposing counsel with the industry's most accurate Legal Analytics®.
Paid pricingAPI availableUpdated 2026-03-17
Best fits
Judge Behavior AnalysisMotion Success Rate Prediction
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About Lex Machina
Lex Machina, a LexisNexis company, is the industry standard for Legal Analytics, utilizing advanced Natural Language Processing (NLP) and Machine Learning to clean, tag, and structure millions of court documents. By 2026, the platform has matured its 'Lexpressions' engine—a proprietary data-cleaning layer that normalizes messy court dockets into structured data points. This architecture allows legal professionals to perform 'Moneyball' style analysis on judges, opposing counsel, and venues. The 2026 iteration integrates generative AI for automated docket summarization and high-fidelity predictive modeling for case duration and settlement values. Unlike generic LLMs, Lex Machina operates on a verified, closed-loop dataset of federal and state court records, ensuring that its insights are grounded in actual litigation history rather than statistical probability alone. Its technical stack is optimized for enterprise-scale litigation, offering deep integrations with the Lexis+ ecosystem and providing a robust API for law firm business intelligence units to feed internal dashboards and CRM systems.
Core Capabilities
Lex Machina, a LexisNexis company, is the industry standard for Legal Analytics, utilizing advanced Natural Language Processing (NLP) and Machine Learning to clean, tag, and structure millions of court documents.
