Sierra closed a $950 million round at a $15.8 billion valuation, led by Tiger Global and GV with Benchmark, Sequoia, Greenoaks and others. Eight months ago the company was valued at $10B. The reason for the step-up is not a keynote demo. It is revenue: $100M ARR in November, $150M by early February, and a customer list that includes Cigna, Prudential, Blue Cross Blue Shield, Rocket Mortgage, SoFi, Ramp, Discord, Rivian, Sonos, and Wayfair.

Stephen Forte's read: customer service is the first enterprise workflow with a billion-dollar AI receipt attached, and the part your CFO should underline is the pricing model, not the round size.

In this episode:

• Why outcome-based pricing changes every line item in your stack
• How a single agent across phone, IVR, chat, WhatsA ...