Luminance vs Summize

Side-by-side comparison of Luminance and Summize: pricing, features, API access, and community ratings.

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	Luminance Legal-Grade™ AI agents to automate, expedite and enhance every contract touchpoint across your business Visit	Summize The AI contracting layer that powers contract lifecycle management across your business tools Visit
Category	Legal & compliance	Legal & compliance
Pricing	Enterprise	Paid
Starting price
Free tier
Audience	All audiences	All audiences
API available
Open source
Self-hostable
Model provider	Proprietary (Mixture of Experts / multi-model architecture)
Founded	2015
Headquarters	London, United Kingdom
Key strengths	·Legal-Grade™ accuracy via Mixture of Experts probabilistic consensus ·End-to-end contract lifecycle coverage (draft, negotiate, analyze, comply, investigate, collaborate) ·Proven ROI: 90% time savings on contract review, 98% reduction in contract management costs ·ISO 27001 & SOC2 certified with a dedicated Security Advisory Board	·Embedded-first CLM that works inside tools teams already use (Word, Outlook, Teams, Slack) ·AI-powered contract review, redlining, and redrafting directly in Microsoft Word ·Agentic AI layer that surfaces contract intelligence proactively across daily workflows ·Smart centralized repository with full-text search, key date tracking, and risk visibility