United StatesFinance and insurance2025 – ongoingBrex
AI expense submission, policy and audit tools in Brex spend management
Brex reported a 94% policy compliance rate after rebuilding its spend management product on Claude
Problem
Finance teams wrote complex expense rules by hand and checked claims after the money was spent. Employees often learned of a policy breach only after a violation.
Approach
Brex began testing AI models in 2023 and chose Claude in Amazon Bedrock for its spend management product. Employees submit expenses in conversation, and the system uses calendar, location and spending context to categorize them. Finance teams upload policy documents instead of writing rules, and an AI workbench groups related expenses and flags policy concerns.
Results
Takeaway
Moving policy checks from after the spend to before it is where Brex placed its compliance gain.
Categories
- Industry
- Finance and insurance
- Business function
- Finance, risk and legal
- Innovation type
- Product and service innovation
- AI technology
- Generative AI
- Adoption
- Off-the-shelf tool or platform
- Evidence
- Vendor case study
Sources
Source summaries
Anthropic describes Brex's rebuilt spend management product with conversational expense submission, policy interpretation and AI auditing. It gives a 94% compliance rate against a 70% industry standard, full line-item review and $56.5 million in annual salary savings across customers. The page carries no date; the Internet Archive first saved it on September 25, 2025.
Full details are in the original sources.