Luminance launches Luna Crescent contract AI model

Luminance has launched Luna Crescent, a proprietary artificial intelligence model designed specifically for legal and commercial contract tasks. The model was trained on the structure and language of legal agreements rather than broader consumer or business text, which improves precision in identifying liability caps, termination rights, and confidentiality obligations. To assess the model, Luminance's research and development team in Cambridge built an internal benchmark called ContractIQ Bench, which includes more than 180,000 manually annotated legal data points. Using this benchmark, Luna Crescent was compared with leading general-purpose models on contract-understanding tasks involving previously unseen legal concepts. According to the company, the specialist model delivered 5% higher accuracy and generated answers up to four times faster. Legal experts also preferred Luna Crescent's outputs in blind evaluations, particularly for identifying complex contractual concepts and interpreting nuanced legal language. The model processes text at roughly 200 to 400 tokens per second, meaning work that might take 30 seconds on a general-purpose model could be completed in under eight seconds. This speed is significant because contract analysis often spans large document collections across legal, procurement, finance, and operations teams. Faster review can affect how quickly businesses surface risks, check obligations, and extract commercial information from contract portfolios. Luna Crescent was developed within Luminance's own artificial intelligence stack and fine-tuned on a proprietary legal dataset drawn from more than 220 million verified legal documents. This approach gives customers more visibility into how its legal AI systems are built, governed, and operated. The model sits within the platform's wider multi-model setup, allowing Luminance to apply different models or combinations of models to legal tasks across the contract lifecycle, including review, negotiation, and post-signature management. Luminance was founded by AI researchers from the University of Cambridge and focuses on software for enterprise contracting. The company says its platform is used by more than 1,000 large organisations in more than 70 countries. The announcement reflects a broader shift in artificial intelligence software toward narrower models trained for specific professional tasks rather than general-purpose use. In contract work, the distinction matters because many tasks depend on recognising not just keywords but the relationship between rights, obligations, restrictions, and risk allocation. Contract review systems are increasingly expected to identify unusual drafting, compare terms across documents, and flag the absence of clauses as well as their inclusion. Graham Sills, Co-Founder and Director of AI at Luminance, stated: "With Luna Crescent, enterprises finally have an LLM built for their work rather than borrowed from elsewhere. This is what vertical AI should deliver: greater accuracy, greater speed and greater trust for the work that matters most. By developing Luna Crescent within our own AI stack, we can give customers clarity over how their contract intelligence is built, governed and applied to their business, and power legal-grade agents capable of taking precise, context-aware action across the contract lifecycle."

(Source：It Brief New Zealand)