ClearTerms vs Kira Systems
AI Document Analysis for Everyone vs the Gold Standard for BigLaw
Kira Systems (now part of Litera) is the dominant AI contract review platform for large law firms — used by roughly 70 of the top 100 global law firms, with 14 years of ML training on over one million contracts. ClearTerms brings AI contract analysis to the rest of the market: small businesses, startups, in-house teams, and individuals who need to understand legal documents without BigLaw budgets.
By ClearTerms Team · Last reviewed February 2026
TL;DR
CTClearTerms | KSKira Systems | |
|---|---|---|
| Best for | Anyone reviewing legal documents — SMBs, startups, in-house teams, individuals | Am Law 100, Magic Circle firms, Big Four conducting M&A due diligence |
| AI engine | GPT-5.2 (general-purpose LLM) | Hybrid proprietary ML + GenAI (1M+ contracts, 14 years training) |
| Smart Fields / extraction | Key points, risks, obligations per document | 1,400+ pre-trained Smart Fields + unlimited custom fields |
| Pricing | Free / $49 / $199 per month | ~$50,000–150,000+/year |
| Setup time | Instant | Weeks to months |
| M&A due diligence | No — not designed for bulk review | Yes — core use case |
Kira is the gold standard for BigLaw contract review. ClearTerms is Kira for the rest of us — the same category of AI insight at a price point accessible to everyone.
Feature Comparison
| Feature | ClearTerms | Kira Systems |
|---|---|---|
| Primary function | AI document analysis & summarization | AI contract review for law firms |
| Plain-language summaries (8th-grade level) | ✓ | — |
| Risk identification (high/medium/low) | ✓ | ✓ |
| Obligation tracking | ✓ | ✓ |
| Favor scale analysis (−100 to +100) | ✓ | — |
| Financial term extraction | ✓ | ✓ |
| Attorney question generator | ✓ | — |
| Interactive document chat | ✓ | ✓ |
| Smart Fields (pre-trained extraction) | — | 1,400+ |
| Custom field training | — | ✓ |
| Concept Search (cross-document) | — | ✓ |
| M&A due diligence workflows | — | ✓ |
| Bulk / high-volume review | — | ✓ |
| Transparent pricing | ✓ | — |
| Free tier | ✓ | — |
| Setup time | Instant | Weeks–months |
| G2 rating | N/A (new) | 4.3/5 |
About Kira Systems
Founded in 2011 in Toronto and acquired by Litera in 2021, Kira has over 14 years of ML training on more than one million contracts. Approximately 70 of the top 100 global law firms use Kira, including over 80% of the top 25 M&A law firms.
Kira's core technology: 1,400+ pre-trained Smart Fields covering 40+ substantive areas. Recent GenAI additions:
- ›Generative Smart Fields: Create custom extraction fields with natural language prompts
- ›Concept Search: Find legal concepts across all documents using a single example
- ›Jurist AI: GenAI conversational interface for querying review data
- ›Smart Summaries: AI-generated summaries of extracted contract data
- ›Grid Chat (2026): Natural language querying across full review datasets
Reported accuracy: 95–97% out-of-the-box. Customers include Freshfields, Holland & Knight, Sheppard Mullin, and Perkins Coie.
ClearTerms: Serious AI Contract Review Without the BigLaw Price Tag
Kira is the AI contract review platform used by 70 of the top 100 global law firms for M&A due diligence — powerful, precise, and priced for BigLaw. ClearTerms brings AI contract analysis to individuals and businesses who need the same quality of insight when signing a contract, at a price that doesn't require a legal budget. Upload any document and receive:
- ✓Plain-language summary (8th-grade reading level)
- ✓Risk identification categorized by severity
- ✓Extracted obligations, deadlines, and durations
- ✓Financial terms with amounts and payment directions
- ✓Favor scale score (−100 to +100) — which party benefits
- ✓Automatic party identification with roles
- ✓Suggested attorney questions
- ✓Interactive chat for follow-up questions
Powered by GPT-5.2. Self-serve, instant results, no setup, no minimum commitment.
How They Differ
AI Technology and Accuracy
Kira — Specialized ML
Kira's AI reflects 14 years of specialized training on contract data. Its 1,400+ Smart Fields are purpose-built to identify specific provisions with 95–97% accuracy. The hybrid approach (proprietary ML for structured extraction + GenAI for flexible queries) gives Kira both precision and adaptability for high-volume, high-stakes extraction.
ClearTerms — GPT-5.2
ClearTerms uses GPT-5.2 for holistic document understanding — summarization, risk identification, bias assessment, and structured analysis. While not optimized for predefined field extraction at scale, it excels at the comprehension tasks that matter most to non-lawyers: what does this mean, what are the risks, and which side does it favor?
M&A Due Diligence and Bulk Review
This is Kira's core use case. In M&A transactions, lawyers may review thousands of contracts to identify change-of-control provisions, assignment restrictions, or consent requirements. Kira handles this at scale, extracting specific provisions consistently across large document sets with 95–97% accuracy.
ClearTerms is designed for individual document analysis, not bulk review. It does not offer project-based review workflows, cross-document comparison, or high-volume processing. If you are conducting due diligence on a $500 million acquisition, Kira is the right tool.
What ClearTerms Offers That Kira Does Not
Favor Scale (−100 to +100)
Quantitative bias scoring shows which party the document favors — immediately valuable for business stakeholders without legal expertise.
Attorney Question Generator
Document-specific questions to ask legal counsel, helping users maximize limited time with lawyers.
8th-Grade Reading Level Summaries
Written for accessibility, not for legal professionals who already understand legal language.
Money Matters Extraction
Dedicated financial term extraction showing fees, payment obligations, and cost implications with direction (incoming/outgoing).
These features reflect ClearTerms' focus on making documents accessible to non-lawyers — a use case that Kira (built for lawyers) does not prioritize.
Onboarding and Accessibility
ClearTerms
Under one minute to first analysis
Sign up, upload a document, receive results. No training, no setup costs, no implementation timeline.
Kira Systems
Weeks to months of onboarding
Implementation costs start at $2,000 for small deployments and range to $10,000+ for larger setups. Designed for trained legal professionals.
Pricing Comparison
Pricing as of February 2026. Kira pricing estimated from publicly available sources.
ClearTerms
Flat pricing, no per-seat charges, self-serve signup.
Kira Systems
Per-user subscription, sales-led, annual contracts.
The gap in context
ClearTerms Business costs $2,388/year. The minimum Kira deployment for small teams is estimated at ~$5,000/year plus implementation. The pricing gap reflects the different markets these tools serve. Kira's enterprise pricing is justified for law firms where a single M&A transaction generates far more in fees than the software costs.
Which Tool Is Right for You?
Choose Kira Systems if you need…
- ›
Am Law 100 or Magic Circle firm
Kira is purpose-built for BigLaw contract review workflows
- ›
M&A due diligence at scale
Review hundreds or thousands of contracts for specific provisions
- ›
1,400+ pre-trained Smart Fields
Consistent, high-accuracy extraction across large document sets
- ›
Custom field training
Teach the system to recognize your organization's specific clause types
- ›
95–97% extraction accuracy
High-stakes legal work where precision is non-negotiable
- ›
Concept Search across collections
Find legal concepts across entire document portfolios using a single example
Choose ClearTerms if you need…
- ✓
Document comprehension for non-lawyers
Understand what a contract says without legal training or a law firm budget
- ✓
Instant, affordable analysis
$0–199/month — no annual contracts, no sales process
- ✓
Favor scale and bias assessment
Quantitative scoring of which party a contract benefits (−100 to +100)
- ✓
Attorney question generation
AI-generated, document-specific questions to prepare for legal consultations
- ✓
Plain-language output
Summaries written at an 8th-grade reading level for business stakeholders
- ✓
Individual document review
5–250 documents per month, not bulk due diligence workflows
The Verdict
Kira and ClearTerms occupy entirely different segments of the contract AI market. Kira is the gold standard for BigLaw: 14 years of ML training, 95–97% accuracy, dominance among the world's top law firms. ClearTerms makes AI contract analysis accessible to the millions of businesses and individuals who will never need (or afford) a BigLaw-grade platform. For the Am Law 100, Kira is the clear choice. For everyone else, ClearTerms delivers meaningful AI insight at a price that makes legal document understanding a commodity, not a luxury.
Frequently Asked Questions
Is ClearTerms a replacement for Kira Systems?↓
How does ClearTerms' accuracy compare to Kira's 95–97%?↓
Can a small law firm use Kira?↓
What is Kira's relationship with Litera?↓
Does ClearTerms offer anything Kira does not?↓
Can I use ClearTerms for M&A due diligence?↓
BigLaw AI insights. Everyone's budget.
Upload your first document and get a complete analysis — risks, obligations, financial terms, favor scale, and attorney questions — in under a minute. Free to start, no credit card needed.