Luminance is a legal AI platform founded in 2015 by mathematicians from the University of Cambridge, headquartered in Cambridge, UK. Rather than building primarily on top of third-party foundation models, Luminance reports training its own proprietary legal large language model on a corpus it describes as over 150 million legally verified documents.
The platform covers document analysis, contract generation and drafting, redlining, and negotiation support, and is particularly used for high-volume review scenarios such as M&A due diligence, where large numbers of documents need to be triaged and compared quickly.
Luminance reports working with over 1,000 organizations across roughly 70 countries as of 2026, spanning both law firms and corporate legal departments, with particular strength in M&A and due diligence workflows.
Pricing is not publicly listed; third-party reporting places typical deployments in the five-to-six-figure annual range, with starting prices reported around $40,000/year, varying by user count, document volume, and which product modules are purchased.