Shortlist by what you need
Start here if you know why you are leaving Luminance.
Want the closest match?
HarveyMost similar to Luminance in what it does, its category and its price.
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LegoraFrom $300/mo, the lowest starting price here.
Visit (opens Legora in a new tab)Want the best rated?
CoCounselRated 4.3 out of 5 in our review, against 4.2 for Luminance.
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At a glance
Green means better than Luminance, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 LuminanceBaseline | 4.2 | Not listed | No | Trained its own proprietary LLM on more than 150 million legal documents | |
| Harvey | 4.4+0.2 | $333/mo | No | Backed by OpenAI's own startup fund, reaching an $11 billion valuation in 3 years | vs Luminance |
 Kira Systems | 4.1−0.1 | Not listed | No | Litera's AI contract-review platform trained on over a million contracts, used inside most top-100 global law firms. | vs Luminance |
 Definely | 4.0−0.2 | Not listed | No | Nearly tripled ARR in a single year, built by two former Freshfields lawyers | vs Luminance |
 Ironclad | 4.2Same | Not listed | No | A full contract lifecycle platform, with AI as one tier rather than the whole product | vs Luminance |
| Legora | 4.3+0.1 | $300/mo | No | Crossed $100M ARR in its third year, one of the fastest enterprise-software ramps on record | vs Luminance |
| CoCounsel | 4.3+0.1 | $375/mo | No | Reached 1 million users in 3 years, backed by Thomson Reuters after a $650M acquisition | vs Luminance |
 EvenUp | 4.1−0.1 | Not listed | No | AI for personal injury law reached a $3B valuation after raising $385M to automate case valuation and demand drafting | vs Luminance |
 LegalFly | 4.0−0.2 | Not listed | No | Bank-level security and default anonymization for in-house legal, compliance, and procurement teams | vs Luminance |
The alternatives in detail
In order of how closely each one matches Luminance.
Harvey
4.4$333/mo
vs Luminance+0.2
Backed by OpenAI's own startup fund, reaching an $11 billion valuation in 3 years.
- Document review, due diligence, contract analysis, and legal research in one platform
- Built specifically for large law firms and corporate legal departments
- $1B+ raised, $11B valuation, ~$190M ARR as of March 2026
Purpose-built for the specific demands of large-firm legal work
Enterprise pricing starts around $40,000 a year, out of reach for small firms
Kira Systems
4.1Not listed
vs Luminance−0.1
Litera's AI contract-review platform trained on over a million contracts, used inside most top-100 global law firms.
- Predictive AI trained on over a million contracts
- Hybrid predictive-AI plus generative-AI review workflow
- Grid Chat natural-language querying across review data
Long track record dating to 2011 with deep adoption among top law firms
Enterprise-only pricing with no published rates makes budgeting hard upfront
Definely
4.0Not listed
vs Luminance−0.2
Nearly tripled ARR in a single year, built by two former Freshfields lawyers.
- AI drafting, editing, and proofreading built for complex negotiated documents
- Catches defined-term errors and cross-reference mistakes in dense contracts
- Nearly tripled annual recurring revenue in 2024
Founders' Big Law background shows in a focus on genuinely complex documents
Pricing isn't published, requires a sales conversation to get a quote
Ironclad
4.2Not listed
vs LuminanceSame
A full contract lifecycle platform, with AI as one tier rather than the whole product.
- Full contract lifecycle management: drafting, negotiation, approval, signing, storage
- Jurist AI tier layered on top of the existing CLM workflow
- $200M ARR as of January 2026, up 34% year over year
Full contract lifecycle coverage, not AI analysis alone
AI-specific Jurist tier is priced separately, on top of the base CLM subscription
Legora
4.3$300/mo
vs Luminance+0.1
Crossed $100M ARR in its third year, one of the fastest enterprise-software ramps on record.
- AI workspace unifying public legal sources and a firm's own documents
- Crossed $100M ARR in its third year of operation
- $866M raised across eight rounds, $5.6B valuation as of April 2026
Exceptionally fast revenue growth validates strong large-firm demand
Per-user pricing still runs $300-$800 monthly, an enterprise-scale commitment
CoCounsel
4.3$375/mo
vs Luminance+0.1
Reached 1 million users in 3 years, backed by Thomson Reuters after a $650M acquisition.
- First AI legal assistant built on GPT-4, launched March 2023
- Backed by Thomson Reuters after a $650M acquisition of Casetext
- Multi-model architecture spanning Anthropic, OpenAI, and Google models
Thomson Reuters backing brings deep legal-content integration most competitors lack
Practical Law integration requires the higher-priced tier to access fully
EvenUp
4.1Not listed
vs Luminance−0.1
AI for personal injury law reached a $3B valuation after raising $385M to automate case valuation and demand drafting.
- Automated demand-letter drafting for personal injury cases
- AI-powered medical-record summarization and chronology building
- Case-valuation modeling based on comparable settlement and verdict data
Deep specialization in personal injury delivers real depth general legal AI can't match
Narrow personal injury focus means it's not usable for other litigation practice areas
LegalFly
4.0Not listed
vs Luminance−0.2
Bank-level security and default anonymization for in-house legal, compliance, and procurement teams.
- AI-native workspace for in-house legal, compliance, and procurement teams
- Client and counterparty data anonymized by default before any analysis
- Legally-trained AI agents built specifically for contract review workflows
Default anonymization removes a manual privacy step other tools leave optional
Subscription pricing isn't published, requires a direct sales conversation
FAQ
Questions people ask
Is Luminance free?
Luminance does not list a free plan. Check its pricing page for current plans.
What is the cheapest alternative to Luminance?
Among paid plans, Legora has the lowest starting price (from $300/mo).
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.