AI Lease Abstraction Accuracy: Benchmarks and What to Expect
What accuracy can you realistically expect from AI lease abstraction tools? We break down field-level accuracy rates, where AI excels, where it struggles, and how to validate output.
By Angel Campa, Founder · Updated March 2026 · Saves 2–3 hours per property for market analysis
Asset managers need to compare their in-place rents against CoStar asking rents to identify below-market and above-market leases for hold/sell and renewal strategy. Without structured extraction of in-place lease data, this comparison requires manual reading of every lease.
Download CoStar asking rent data for comparable properties and lease spaces in the submarket. Export to Excel.
Upload all executed tenant lease PDFs to Lextract for structured extraction.
Lextract extracts base rent per SF, lease type, lease expiration, and escalation schedule for each tenant.
Combine in-place rents from Lextract with CoStar asking rates. Calculate the rent gap (spread to market) and rank tenants from most below-market to most above-market.
Use the rent gap analysis to prioritize lease renewals, identify re-leasing opportunities at market, and inform the hold/sell decision.
Learn about the full integration between Lextract and Microsoft Excel, including supported export formats and critical fields.
View Microsoft Excel integration →Mark-to-market analysis compares your current in-place rents against current market asking rents. Tenants paying below market represent upside at renewal; tenants paying above market represent retention risk.
Lextract identifies whether each lease is NNN, modified gross, or gross. This affects the effective economic rent comparison — a $25/SF NNN lease is not directly comparable to a $25/SF gross lease.
What accuracy can you realistically expect from AI lease abstraction tools? We break down field-level accuracy rates, where AI excels, where it struggles, and how to validate output.
Compare the top AI lease abstraction tools for commercial real estate in 2026. We review Lextract, Prophia, Kolena, Leasecake, MRI Software, and more — with pricing, accuracy, and use-case guidance.
Free AI lease abstraction tools are fast and easy — but they have real limitations. Here is what free tools deliver, what they miss, and when you need structured output instead.
Upload your lease PDF and get 125+ structured fields ready to import into Microsoft Excel. Just $20 per lease — no subscription required.
Start Extracting — $20/lease