Zest AI
Explainable credit underwriting models for lenders.
Full Zest AI record →Head to head
Zest AI vs Brex AI
Zest AI (Zest AI) and Brex AI (Brex) both sit in Finance. Zest AI is the cheaper entry point at Enterprise quoted. Brex AI shipped more tracked changes in the last 30 days (2 vs 0). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | Zest AI Zest AI | Brex AI Brex |
|---|---|---|
| Segment | Finance | Finance |
| Version | 2025 | Summer Release 2026 |
| Entry cost | Enterprise quoted | Free tier · from $12/mo |
| Pricing tiers | — | Essentials free · Premium $12 · Enterprise free · Smart Card free |
| Model stack | in-house ML | Proprietary LLM · Undisclosed frontier LLM · Unspecified |
| Context window | — | Not published |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 2 |
| Origin | Global | Global |
| Capabilities | Underwriting models, Fair lending, Explainability | Spend Q&A, Receipt matching, Policy enforcement, Budget agents, Travel booking, AI-powered custom rules, AI-powered compliance audit detection, AI-powered expense assistant |
Brex AI
Answers finance questions and automates expense workflows over company spend data.
Full Brex AI record →