AIEOG AI Lexicon: Official AI Definitions for Financial Services

By RJ Grimshaw · February 1, 2026

The U.S. Treasury's Artificial Intelligence Executive Order Group (AIEOG) released the official AI Lexicon for financial services. These are the definitions that regulators and financial institutions must align to.

Why This Matters for Equipment Finance

Equipment finance companies that use AI in credit decisioning, collections, or customer communications are now operating inside a defined regulatory vocabulary. Misalignment between your internal AI terminology and the AIEOG lexicon creates compliance exposure.

Key Definitions

The lexicon covers AI system, AI model, automated decision system, explainability, fairness, and governance. Each definition has direct implications for how equipment finance companies document, audit, and defend their AI deployments.

See our full AI Glossary for Equipment Finance or learn how we build compliant AI systems.