How Waymo built audit-ready financial operations with deterministic AI scoring
Waymo's auditors scrutinize every AI-assisted process. Cortex's deterministic scoring and SOX trust boundary, where AI never posts journals or certifies periods, was the reason they chose Arvexi.
A previous platform migration had failed. The AI made non-reproducible recommendations. Confidence scores changed between runs. Auditors could not trace findings back to inputs. For a company facing public-market scrutiny, that was unacceptable.
The SOX trust boundary
If Cortex assigns a confidence score of 87, auditors need to see exactly which data points drove that score and confirm re-running the analysis produces 87, not 84 or 91. Every output is deterministically reproducible.
The architectural constraint was the differentiator: Cortex investigates variances, generates findings, and recommends actions. But it never posts journal entries, certifies period close, or approves reconciliations. Those require human authorization. The boundary is architectural, not configurable.
"Other platforms offered AI that could auto-post adjustments," the accounting manager says. "Our auditors would never accept that. Arvexi's approach, where AI investigates and humans decide, is the only model that works under SOX."
Implementation with auditors in the room
Eight-week implementation with external auditors involved from week one. They signed off on the control framework before go-live. The account reconciliation module handles 150+ accounts with full audit trail and segregation of duties.
Results
Close from 11 to 4 days. Zero findings related to AI-assisted processes across four consecutive quarters. Portfolio grown to 200+ accounts, same controlled process.
Explore how Arvexi's Cortex AI delivers deterministic, audit-ready investigation through the auditor portal.
As a public company, our auditors scrutinize everything. Cortex's deterministic scoring means they can reproduce every confidence rating. The SOX trust boundary, where AI never posts journals or certifies periods, was the reason we chose Arvexi over the alternatives.
Senior Accounting Manager
Financial Operations at Waymo