Luminance

Legal AI trained exclusively on legal documents, for law firms and in-house teams.

Legal

Overview

Luminance has developed its own legal language model (Legal Pre-Trained Transformer, LPT) trained only on legal documents, unlike tools relying on general-purpose LLMs. The platform covers contract review, M&A due diligence, regulatory compliance and increasingly contract drafting. It operates in over 70 countries and counts Big Four and many multinationals among its clients.

Luminance offers contract intelligence with institutional memory: the AI learns your organization's legal habits and positions. A Microsoft Word add-in lets you negotiate directly in documents. Pricing is entirely on request and calibrated to organization size.

Our verdict

The premium choice for law firms and legal departments wanting a truly specialized legal AI model, without compromise on accuracy. Cost and learning curve reserve it for structured legal departments. For an SME, Harvey or Spellbook will be more accessible.

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Luminance: pricing, review and alternatives — librairy.io