Can I use Luminance and Relativity aiR together?

Yes, many teams use both tools together for different purposes. Use the Stack Builder section above to combine Luminance and Relativity aiR with other tools and save your AI toolkit.

Does Luminance or Relativity aiR have a free plan?

Luminance is a paid tool. Relativity aiR is a paid tool. Always verify current pricing directly with the vendor.

Luminance vs Relativity aiR

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Updated May 2026

Luminance

Luminance Technologies Ltd.

Automate, expedite, and enhance contract activity with Legal-Grade™ AI agents.

0.0(0)

ENTERPRISE

81% data quality

Relativity aiR

Relativity

Empower legal teams to organize data, discover truth, and act with confidence.

0.0(0)

ENTERPRISE

87% data quality

Trust & Reliability

Luminance

Users:1K-10K

Customers (per vendor):KPMG, Clyde & Co, Circana +4

GDPR

SOC 2

Overall Winner: Relativity aiR

7.3/10 vs Luminance at 6.2/10

Leads in:

Support

Output Quality

Value for Money

AI Comparison Summary

Luminance

6.2

avg score

Relativity aiR

7.3

avg score

Relativity aiR leads overall — particularly in Customizability and Support & Ecosystem.

Based on 6 dimensions

How scores are calculated

Overall Winner

Relativity aiR

7.3 / 10

Luminance

Best For

Automating legal document drafting for enterprises

Expediting contract negotiations for legal teams

Ensuring legal and regulatory compliance at scale

Gaining deep insights from large contract databases

Not Ideal For

Individual legal practitioners or small law firms with limited contract volume

Users seeking a low-cost or free legal AI solution

Legal tasks unrelated to contract drafting, negotiation, analysis, or compliance

Relativity aiR

Best For

Accelerating document review for legal professionals

Protecting privileged information in legal cases

Building robust case strategies with AI assistance

Streamlining data breach response processes

Not Ideal For

Small law practices or solo practitioners with limited budgets

Individuals seeking a free or low-cost AI legal tool

Users needing transparent, self-service pricing models

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Luminance is best for

📊Data & Analytics9.0🤖Automation & Agents7.0🔍Research5.0

Relativity aiR is best for

📊Data & Analytics9.0🔍Research7.0🤖Automation & Agents3.0

Filter by your use case:

Pros & Cons

Luminance

Pros

Achieves 90% time-savings on contract review and generation
Reduces contract management costs by up to 98%
Offers world-class security with ISO 27001 and SOC 2 Type 2 certifications
Provides 24/7 dedicated customer support and account teams
Facilitates seamless collaboration for distributed legal teams
Integrates with Microsoft Word for in-platform negotiation
Delivers instant, at-a-glance insight into the entire contractual landscape
Empowers non-legal professionals to review contracts autonomously

Cons

Pricing information is not publicly available, indicating a high enterprise cost
No explicit API or SDK mentioned for custom integrations beyond listed partners
Underlying AI models are not explicitly named, which may limit transparency for some users
Primarily focused on contract-related legal tasks, less suitable for broader legal work
Requires integration into existing enterprise workflows, potentially involving a setup period

Relativity aiR

Pros

Purpose-built AI specifically for legal challenges
Seamlessly integrated into the RelativityOne platform
Robust proactive security measures and continuous monitoring
Legendary 24/7 global support with legal industry expertise
Extensive partner ecosystem for additional value and services
FedRAMP-authorized solution for federal agencies

Cons

Pricing is not publicly disclosed and requires contacting sales
Primarily designed for large corporations and law firms, not individuals
Requires integration with the broader RelativityOne platform
No explicit mention of specific underlying LLMs for Relativity's proprietary AI
No free trial or freemium option for direct product use

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Output Quality5

Value for Money5

Customizability5

Support & Ecosystem5

Integration Power5

Dimension Comparison

Luminance

6.2

/ 10

Relativity aiR

7.3

/ 10

Clear winner

Dimension Breakdown

Ease of Use

How easy it is to get started and use daily

Luminance

7.0

Relativity aiR

7.0

Output Quality

Quality and accuracy of generated results

Luminance

8.0

Relativity aiR

9.0▲ +1.0

Value for Money

Cost vs. features and output quality

Luminance

6.0

Relativity aiR

7.0▲ +1.0

Customizability

Calculated

Ability to tailor to specific needs

Luminance

2.0

Relativity aiR

5.0▲ +3.0

Support & Ecosystem

Documentation, community, and support quality

Luminance

8.0

Relativity aiR

10.0▲ +2.0

Integration Power

Calculated

Ability to connect with other tools and workflows

Luminance

6.0

Relativity aiR

6.0

Calculated = derived from verified integration count and API/open-source signals. AI = LLM-assessed from public website content. Methodology

Task Performance

Luminance

Task

Relativity aiR

9.0

Contract Analysis

9.0

5.0

Legal Research

7.0

9.0

Document Drafting

6.0

8.0

Compliance Monitoring

2.0

7.0

Risk Assessment

8.0

3.0

Case Management

7.0

Regulatory Tracking

2.0

8.0

Due Diligence

8.0

9.0

Clause Extraction

9.0

7.0

Approval Workflows

3.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

Which is better, Luminance or Relativity aiR?

Both are strong options. Luminance has a rating of 0.0/5 (0 reviews), while Relativity aiR has a rating of 0.0/5 (0 reviews). The best choice depends on your specific use case, budget, and workflow requirements.

Is Luminance cheaper than Relativity aiR?

Luminance starts at free (enterprise model). Relativity aiR starts at free (enterprise model). Use the Cost Calculator above for a detailed estimate.

What are the main differences between Luminance and Relativity aiR?

Luminance — "Automate, expedite, and enhance contract activity with Legal-Grade™ AI agents.". Relativity aiR — "Empower legal teams to organize data, discover truth, and act with confidence.". Key differences include their pricing models, platform support, integrations, and technical capabilities. See the Feature Comparison table above for a complete side-by-side breakdown.

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