Is DISCO or Luminance better?

Neither clearly leads. DISCO starts at On request and Luminance at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, DISCO or Luminance?

DISCO starts at On request and Luminance at On request.

Does DISCO or Luminance run on more platforms?

DISCO runs on Web. Luminance runs on Web, Windows.

What is DISCO best used for?

DISCO is most often used for a litigation team that needs a matter budget approved before the volume of collected data is fully known, a firm that wants unlimited reviewer accounts without paying per seat during a document review surge, an in-house legal department consolidating legal hold and review with one vendor instead of two, a case where speed of ingestion matters more than the analytics depth of an enterprise review platform. Of those, a litigation team that needs a matter budget approved before the volume of collected data is fully known and a firm that wants unlimited reviewer accounts without paying per seat during a document review surge are not what Luminance is typically brought in for.

What can DISCO do that Luminance cannot?

DISCO covers All-in per-gigabyte pricing, Cecilia AI, Technology assisted review, Legal hold. Luminance covers Anomaly detection, Contract negotiation, Due diligence review, Multi-language analysis.

Legal · head to head

DISCO vs Luminance

DISCO

Legal

Cloud e-discovery priced by data volume, with review, legal hold and case preparation in one platform

From: On request
Rated: -

Full review Website

Luminance

Legal

Machine learning contract analysis for review, negotiation and compliance

From: On request
Rated: -

Full review Website

The short version

Each has a real cost: DISCO per-gigabyte pricing that is attractive on a 200 gigabyte matter becomes the dominant line item on multi-terabyte collections, and the only cost lever left is aggressive culling before upload.; Luminance no independent evaluation of its accuracy has been published, and it did not take part in the Vals Legal AI Report, so buyers have only vendor-produced evidence to work from.
They diverge on capability: DISCO covers All-in per-gigabyte pricing, Luminance covers Anomaly detection.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which DISCO and Luminance actually diverge.

Attributes where DISCO and Luminance differ
Attribute	DISCO	Luminance
Platforms	Web	Web, Windows

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Legal).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in DISCO

All-in per-gigabyte pricing
Cecilia AI
Technology assisted review
Legal hold
Case Builder
Self-service ingestion

Only in Luminance

Anomaly detection
Contract negotiation
Due diligence review
Multi-language analysis
Document comparison

What people use each for

The jobs each tool is most often brought in to do.

DISCO

A litigation team that needs a matter budget approved before the volume of collected data is fully knownnot Luminance
A firm that wants unlimited reviewer accounts without paying per seat during a document review surgenot Luminance
An in-house legal department consolidating legal hold and review with one vendor instead of twonot Luminance
A case where speed of ingestion matters more than the analytics depth of an enterprise review platformnot Luminance

Luminance

In-house teams auditing a contract estate for a specific exposure such as change of controlnot DISCO
Procurement and compliance functions reviewing supplier agreements at scalenot DISCO
Transaction teams reviewing large contract populations against a deal deadlinenot DISCO
Negotiation teams applying a standard playbook consistently across many counterpartiesnot DISCO

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

DISCO

Per-gigabyte pricing that is attractive on a 200 gigabyte matter becomes the dominant line item on multi-terabyte collections, and the only cost lever left is aggressive culling before upload.
Hosting is cloud only in United States regions, so matters with European, United Kingdom or Australian data residency requirements are excluded outright.
Review analytics, scripting and the third-party application ecosystem remain deeper on Relativity, which matters for firms with established review workflows.
As a listed company reporting losses, it has been through leadership change including the founder departure in 2023, so multi-year roadmap commitments carry more risk than with a private vendor.
Complex productions and unusual data types still require professional services, so the promise of self-service holds mainly for mainstream email and document collections.

Luminance

No independent evaluation of its accuracy has been published, and it did not take part in the Vals Legal AI Report, so buyers have only vendor-produced evidence to work from.
The one named accuracy benchmark, ContractIQ Bench, was built, run and scored by Luminance on a dataset it has not released, against comparison models it does not name.
Value scales with document volume, so an organisation reviewing tens rather than thousands of contracts will not recover the licence cost.
Output still requires qualified review, so it reduces reading time rather than removing the lawyer, and staffing plans that assume otherwise fail.
Pricing is not published, so cost per matter cannot be modelled until after a sales process and a proof of concept.

Pricing, plan by plan

DISCO

On request

DISCO Ediscovery$undefined/year
- Quoted per gigabyte of hosted data per month with unlimited users
- Annual commitments and volume tiers negotiated for firms with steady caseloads
- Legal hold, Case Builder and AI features priced as separate modules

Luminance

On request

Luminance$undefined/year
- Enterprise licensing quoted per organisation
- Scoped by user count and document volume
- Proof of concept normally run before contracting

Which should you pick?

Choose DISCO if

You need all-in per-gigabyte pricing.
You also want cecilia ai.

DISCO review

Choose Luminance if

You need anomaly detection.
You work on Web, Windows.
You also want contract negotiation.

Luminance review

Questions people ask

Is DISCO or Luminance better?: Neither clearly leads. DISCO starts at On request and Luminance at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, DISCO or Luminance?: DISCO starts at On request and Luminance at On request.
Does DISCO or Luminance run on more platforms?: DISCO runs on Web. Luminance runs on Web, Windows.
What is DISCO best used for?: DISCO is most often used for a litigation team that needs a matter budget approved before the volume of collected data is fully known, a firm that wants unlimited reviewer accounts without paying per seat during a document review surge, an in-house legal department consolidating legal hold and review with one vendor instead of two, a case where speed of ingestion matters more than the analytics depth of an enterprise review platform. Of those, a litigation team that needs a matter budget approved before the volume of collected data is fully known and a firm that wants unlimited reviewer accounts without paying per seat during a document review surge are not what Luminance is typically brought in for.
What can DISCO do that Luminance cannot?: DISCO covers All-in per-gigabyte pricing, Cecilia AI, Technology assisted review, Legal hold. Luminance covers Anomaly detection, Contract negotiation, Due diligence review, Multi-language analysis.

Answered from the vendors’ own pages

DISCO: How is DISCO priced?

Per gigabyte of hosted data per month, all-in, with unlimited users. There is no published rate card, so it is quoted.

Luminance: Is Luminance's accuracy independently verified?

No independent verification has been published. It did not participate in the Vals Legal AI Report, the main lawyer-baselined benchmark, and the only named benchmark in its materials is one it built and ran itself. Treat the published figures as vendor claims and run a proof of concept on your own documents.

DISCO: Can data be hosted outside the United States?

Coverage is centred on United States cloud regions, so confirm residency before shortlisting for European or Australian matters.

Luminance: What do the ninety per cent time-saving claims mean?

They are unattributed marketing figures about time and cost rather than accuracy, published without methodology, dataset or baseline. They are not a measure of how often the software is right.

DISCO: Is it cheaper than Relativity?

On small and mid-sized matters usually yes, because seats and analytics are included. On very large collections the volume charge often overtakes a negotiated Relativity arrangement.

Luminance: Who backs Luminance?

It launched in 2016 with backing from Invoke Capital, the fund founded by Mike Lynch, and has since raised further rounds led by March Capital and Point72 Private Investments.

DISCO vs Luminance

DISCO

Luminance

The short version

Where they differ

What each one covers

Only in DISCO

Only in Luminance

What people use each for

DISCO

Luminance

Where each one falls short

DISCO

Luminance

Pricing, plan by plan

DISCO

Luminance

Which should you pick?

Choose DISCO if

Choose Luminance if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on DISCO

More on Luminance

Keep looking

Other head to heads