Opto Sessions – Invest in the Next Big Idea UPST Stock: Upstart's Co-Founder on 92% Loan Automation
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Oct 16, 2025 Paul Gu, co-founder and CTO of Upstart, discusses how AI is revolutionizing lending with 92% of loans fully automated, increasing approval rates significantly. He shares insights on fraud detection and the importance of using AI models for better borrower evaluations. Gu explores Upstart's expansion into auto and home equity products while maintaining competitive advantages in AI technology. He anticipates widespread AI underwriting adoption in the next five years and highlights the potential for improved credit access globally.
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Built Dealer Platform For Auto Loans
- Upstart built its own lending platform for dealerships to reimagine car financing from scratch.
- The platform collects richer borrower signal and enables faster, simpler underwriting at dealerships.
Manual Reviews Mainly For Fraud
- The residual manual loans (~8%) are mostly fraud reviews because fraudsters require intensive scrutiny.
- Fully automating every loan risks letting rare but costly fraud slip through, so a manual channel remains prudent.
Different Fraud Types Require Different Signals
- Third-party identity rings are detectable via patterns, while deliberate first-party fraud is hardest to eliminate.
- Non-traditional signals (speed, behavior) help flag strategic first-party fraud but cannot fully remove it.