a2z Radiology AI vs Zest AI

Side-by-side comparison of AI visibility scores, market position, and capabilities

a2z Radiology AI

EmergingEnterprise AI

Medical Imaging AI

a2z Radiology AI raised $20M in 2025 for its whole-body AI that simultaneously screens for 24+ conditions across CT scans — from incidental cancers to cardiovascular risk — in a single automated read.

About

a2z Radiology AI has developed a whole-body CT analysis platform that simultaneously screens for over 24 medical conditions across a single CT scan, including incidental cancers, coronary artery disease, aortic aneurysm, bone density loss, and organ abnormalities. The AI acts as a second reader that radiologists can use to catch incidental findings that fall outside the primary reason for a scan — a major source of missed diagnoses.

Full profile

Zest AI

ChallengerFinancial Services

AI Lending & Credit Underwriting

AI lending intelligence platform. Nearly 300 lenders. 650+ proprietary models, 50 patents. Raised ~$554M ($200M from Insight Partners). Founded 2009, Burbank CA. Private.

AI VisibilityBeta
Overall Score
B65
Category Rank
#2 of 2
AI Consensus
60%
Trend
stable
Per Platform
ChatGPT
59
Perplexity
71
Gemini
63

About

Zest AI is an AI-powered lending intelligence platform founded in 2009 and headquartered in Los Angeles. The company was founded by former Google engineers and data scientists who saw that traditional credit underwriting — relying on thin FICO score inputs and rule-based scorecards developed in a pre-big-data era — was systematically excluding creditworthy borrowers and leaving billions in loan volume on the table for lenders. Zest AI's mission is to make lending fairer and more profitable simultaneously, by applying machine learning to the full spectrum of available credit data.\n\nThe platform provides AI-driven credit underwriting models that lenders deploy to augment or replace traditional scorecards at the point of loan decisioning. Zest's models ingest hundreds of variables that conventional scorecards ignore, producing more accurate risk predictions that allow lenders to approve more borrowers at the same loss rates — or achieve lower loss rates on the same approval volumes. The company has developed more than 650 proprietary models and holds 50 patents in AI credit underwriting. Zest integrates with major loan origination systems and serves nearly 300 lenders including credit unions, community banks, and consumer finance companies across auto, personal, and small business lending.\n\nZest AI has raised approximately $554 million in total funding, including $200 million from Insight Partners, reflecting the scale of the addressable opportunity in AI-enabled credit decisioning. The company's long operating history since 2009, its proprietary model library, and its documented evidence of bias reduction in lending outcomes position it as the most established AI underwriting platform in the market, with a meaningful head start over newer entrants attempting to commoditize the category.

Full profile

Track AI Visibility in Real Time

Monitor how your brand performs across ChatGPT, Gemini, Perplexity, Claude, and Grok daily.