Harvey vs Luminance: which does AI recommend?

· ChatGPT Search and Google AI Mode

Based on every AI answer that names bothReviewed by

How we measure

AI summary

and are listed first about as often when answers name both; the claims describe both as offering contract analysis.

Listed first when AI names both

HarveyHarvey: 53%LuminanceLuminance: 47%

Recommended when named

HarveyHarvey: 72%
LuminanceLuminance: 90% (Luminance leads)

Warned against · lower is better

HarveyHarvey: 3%
LuminanceLuminance: 0%

Topic by topic

Mentioned in, as a share of each topic’s answers

Luminance named more4

Luminance named more

Only Harvey is ranked in5

Only Luminance is ranked in3

What people ask AI about Harvey and Luminance

Harvey listed firstLuminance listed first
  1. We have terabytes of unstructured legal PDF contracts that we cannot search effectively. Who provides LLM-based document analysis tools?Level
  2. What's the best AI tool for contract review at a corporate legal department?Harvey often first
  3. I am looking for a "natural language processing" (NLP) tool for legal document analysis.Leans Harvey
  4. Our contracts are getting stuck in legal review for weeks. Who offers AI contract review tools to speed up redlining?Level
  5. What's the best AI tool for reviewing a stack of NDAs quickly?Luminance often first
  6. What AI tools help in-house counsel search prior agreements and answer contract questions with citations?Leans Harvey
  7. Our legal team needs AI to review vendor contracts against playbooks and escalate risky clauses. What tools are best?Leans Harvey

Who AI mentions first

Harvey listed firstLuminance listed first

The lead changes hands from month to month; September is 's strongest month yet.

  1. JunHarvey listed first: 48%Luminance listed first: 52%
  2. JulHarvey listed first: 74%Luminance listed first: 26%
  3. AugHarvey listed first: 51%Luminance listed first: 49%
  4. SepHarvey listed first: 40%Luminance listed first: 60%

Every engine leans to by about the same margin. ChatGPT Search lists first slightly more often.

  • ChatGPT SearchHarvey listed first: 54%Luminance listed first: 46%

Sources cited in the comparisons

Harvey favouredNeither favouredLuminance favoured

Also named alongside Harvey and Luminance

and appear in most of these answers, while appears in about half.

  1. Ironclad75%
  2. Spellbook69%
  3. LegalOnTech43%
  4. Litera Kira19%
  5. Thomson Reuters CoCounsel19%
  6. Evisort19%
  7. LinkSquares12%
  8. Docusign11%
  9. Icertis11%
  10. Litera11%
  11. Workday9%
  12. Juro8%

Harvey vs Luminance: common questions

Is Harvey better than Luminance?
Harvey and Luminance are listed first about as often when answers name both; the claims describe both as offering contract analysis.
Do ChatGPT and Google AI Mode recommend Harvey or Luminance?
Every engine leans to Harvey by about the same margin. ChatGPT Search lists Harvey first slightly more often.
What are the alternatives to Harvey and Luminance?
Ironclad and Spellbook appear in most of these answers, while LegalOnTech appears in about half.

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