Relativity vs Luminance
AI Legal Tools pricing comparison · 2026
Relativity pricing ranges from $500–$25000/month, while Luminance ranges from $10–$100/user/month. Luminance is typically 99% more affordable, though your actual cost depends on tier and team size.
Relativity
Relativity is the industry-leading eDiscovery and legal analytics platform used by law fir
verified 27d ago
$800
$999
Luminance
Luminance is an AI-powered contract intelligence platform built by mathematicians from Cam
verified 27d ago
$800
$999
Verdict · Vendr median · year 1
Relativity
saves
$199
vs
Luminance
· 25 seats
Cheapest
$800
Spread
20%
Estimated license cost
at 25 seats
List price × seats. Click a tier below to lock it.
Pricing model unknown
Pricing model unknown
no public list price found
Pricing model unknown
Pricing model unknown
no public list price found
What buyers actually pay
median, annual
Vendr deal-flow data. The real benchmark, not list price.
↓ Lowest median
Median annual
$800/yr
Vendr · n=61
Median annual
$999/yr
Vendr · n=60
REF · 01
Sources & confidence
Every dollar amount and contract clause below traces back to a sourced fact. We don't manufacture composite scores.
Where this data comes from
Vendr · TrustRadius · Reddit · BBB · official docs
Sources
7 sourced facts
4 hidden-cost · 1 contract · Vendr median · 1 review platform
Last verified
3w ago
Confidence
High confidence
Sources
1 sourced fact
Vendr median
Last verified
3w ago
Confidence
High confidence
REF · 02
Plans at a glance
Every tier per product. Lock one to drive the cost row above and reveal a tier-specific outbound CTA.
Tier ladder
Click a tier to lock the cost row to it. Locking surfaces a tier-specific Visit CTA.
REF · 05
What users say
Aggregated, with sample sizes. We use whichever review platform has data.
User reviews
TrustRadius · Trustpilot · G2
Decide
Get a quote from each vendor
Each link opens the vendor's pricing page in a new tab.
License cost is computed from publicly listed plans (real math, list price × seats).
Median annual cost is from Vendr's deal flow when available — see source badges.
Hidden costs and contract terms each cite their own sources. We do not invent composite scores.
VS
Relativity and Luminance both operate in the ai legal tools category. This page compares their list pricing.
Plan-by-Plan Pricing
| Plan | Relativity | Luminance |
|---|---|---|
| RelativityOne Pay As You Go | Free | Free |
| RelativityOne Flex Commit (1-Year) | Free | Free |
| RelativityOne Flex Commit (3-Year) | Free | Free |
Cost at Scale
Total cost of ownership — licenses, implementation, and hidden costs included.
Relativity
6 scenarios$1,250
Boutique Litigation Firm (50GB active data)
$2,500/month for data hosting (50GB x $25-$50/GB). Add $1,750 for initial processing (50GB x $35/GB, one-time per matter). No per-user fees. Total annual cost for steady-state hosting: $15,000-$30,000 plus per-matter processing charges.
$7,500
Mid-Size Corporate Legal Department (500GB, Flex Commit)
$12,500/month ($90,000-$150,000/year) for committed data hosting at discounted rates. Early case assessment data at 33% rate saves $20,000-$40,000/year. Processing costs: $17,500 per 500GB collection (one-time per matter). Total first-year cost: $107,500-$207,500 depending on matter volume.
$50,000
Global Law Firm (5TB, 3-Year Flex Commit)
$100,000/month ($600,000-$1,200,000/year) for committed high-volume hosting with deepest discounts. Cold storage for archived matters at 25% rate provides significant savings. Processing costs: $175,000 per 5TB collection. Total annual cost: $775,000-$1,375,000 including estimated processing, plus potential third-party service provider markups of 20-50%.
Luminance
3 scenarios$3,000
Mid-Size Corporate Legal Department (20 users)
$6,000/month ($36,000-$72,000/year) based on estimated $50/user/month mid-range pricing. Add $5,000-$10,000 for initial setup, integration with SharePoint/iManage, and staff training. Total first-year cost: $41,000-$82,000.
$8,000
Large Enterprise with AI Agents (100 users)
$15,000/month ($96,000-$180,000/year) for base platform. Add 30-50% surcharge ($30,000-$90,000/year) for AI agent capabilities, plus $15,000-$25,000 for implementation and custom integrations. Total first-year cost: $141,000-$295,000.
$5,000
Global Law Firm (50 lawyers, on-premise)
$10,000/month ($60,000-$120,000/year) for licensing. Add $20,000-$40,000 for on-premise deployment and infrastructure setup (one-time), plus $10,000-$20,000/year for dedicated support and SLA. Total first-year cost: $90,000-$180,000.
Market Intelligence
Relativity
- Median annual cost
- $800
- Based on
- 61 deals
Luminance
- Median annual cost
- $999
- Based on
- 60 deals