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Harvey vs Luminance

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Best fit
Harvey: AmLaw-scale firms rolling out one platform firmwide with EU or Australian data residency · Luminance: In-house legal and procurement teams reviewing contracts at volume, from due diligence to repapering
Trust score
About even — Harvey 90, Luminance 92
Status
Both up at our last check (Sep 6, 2026)

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

HarveyLegal work platform for firms and in-house teamsLuminanceEnterprise contract AI that reviews, negotiates and automates agreements across a company's whole portfolio

Side by side

FactHarveyLuminance
CategoryLegal ResearchContract Analysis & Review
Pricing modelContactContact
Trust score90 / 10092 / 100
PlatformsWebWeb
CompanyHarvey AI CorporationLuminance Technologies Ltd
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Harvey

Harvey is the enterprise choice for large firms and legal departments that want one vendor to cover research, review, drafting and now intake and regulatory tracking, with the security paperwork and regional hosting those buyers require. It is not something a solo practitioner or a small firm can sign up for, and the lack of any public price means the comparison with CoCounsel or Legora happens in a sales cycle, not on a pricing page.

Pros

  • Covers the whole legal workflow, from intake to agents to document vaults, rather than one point task
  • Regional instances for the US, EU and Australia address data-residency objections up front
  • Cited answers tied back to source documents and legal content, which is the minimum for legal use
  • Well capitalised: $550M raised at a $15.5B valuation in September 2026, so vendor risk is low

Cons

  • No public pricing, trial or self-serve sign-up; every evaluation runs through sales
  • Built for enterprise procurement, so mid-size and small firms pay for scale they do not use
  • No public API or developer surface found, so it does not slot into a custom stack
  • Rapid module expansion means parts of the platform are months old and lightly proven

Luminance

Luminance is one of the longest-running contract AI vendors, and its strength is breadth across a portfolio: pointing it at thousands of agreements to find the clauses that deviate, the obligations nobody tracked and the paper that needs redoing. The negotiation product is the newer bet and competes with Harvey, Spellbook and the Word-native tools, so a team that mainly wants help drafting one contract at a time should compare on that use alone. It is an enterprise sale with no public price, a proof-of-value stage and a procurement cycle to match; small firms will find the entry bar high.

Pros

  • Portfolio-wide analysis finds anomalies and obligations across thousands of contracts, not one file at a time
  • Negotiate applies the company's own playbook and precedent during a live redline
  • Automate covers intake-to-signature workflow, so review, approval and signing stay in one system
  • A decade-old company spun out of Cambridge with a registered UK entity and stated use by 1,000+ enterprises

Cons

  • No public pricing, trial or self-serve path; evaluation goes through sales and a proof-of-value stage
  • Deployment options, integrations and any API are not described on the public site
  • Named customers and case studies are thin on the public pages, so claims rest on the vendor's own figures
  • Newer negotiation features face strong Word-native competition that may suit smaller teams better

Which one fits

Choose Harvey if you need

  • AmLaw-scale firms rolling out one platform firmwide with EU or Australian data residency
  • In-house legal teams that want intake, contract review and horizon scanning in the same system
  • Legal organisations already standardised on Microsoft tooling, given the vendor's expanding collaboration there

Choose Luminance if you need

  • In-house legal and procurement teams reviewing contracts at volume, from due diligence to repapering
  • Enterprises that want negotiation, portfolio analysis and workflow under one vendor
  • Organisations in regulated or multi-jurisdiction settings that need a UK-based vendor with an established track record

More comparisons

All Luminance alternatives →Browse all Legal Research →