Harvey AI vs Luminance: Enterprise Legal AI Comparison

Harvey AI and Luminance are both enterprise legal AI platforms targeting large law firms, but with different approaches. Harvey is built on top of large language models fine-tuned for law. Luminance uses its own proprietary legal AI model and has a longer track record in due diligence.

Read Harvey AI Review →Read Luminance Review →

Our Verdict

Harvey AI is stronger for general legal research, drafting, and diverse workflows across practice groups. Luminance is stronger specifically for large-scale document review, due diligence, and multilingual contract analysis.

Best For: Harvey AI

Law firms wanting a versatile AI assistant across research, drafting, and analysis

Best For: Luminance

Firms with heavy due diligence and multilingual contract review needs

Feature Comparison

Feature	Harvey AI	Luminance
Legal Research	Yes — strong	No — document focused
Due Diligence	Yes	Yes — market leader
Multilingual Review	Limited	80+ languages
Generative AI Drafting	Yes — strong	Yes — via Autopilot
AI Technology	Fine-tuned LLM on legal data	Proprietary legal AI model
Custom Fine-tuning	Yes — firm data	Yes — firm data
DMS Integration	Yes	Yes

Pricing Comparison

Harvey AI

Enterprise only. Contact Harvey for pricing.

Luminance

Enterprise only. Contact Luminance for pricing.

Disclaimer: Comparisons are based on publicly available information and product documentation. Tool features and pricing change frequently — always verify with vendors directly. Nothing on this site constitutes legal advice.