Last week I released Gata Router - https://github.com/gata-router
Gata is an open source automated L1 ticket triage tool for Zendesk. It costs pennies per ticket for it to route tickets to the correct team.
During development I was regularly seeing over 90% accuracy. The average for humans is 60-80%.
The whole thing runs in your AWS account.
There's more information in the release announcement - https://www.proactiveops.io/archive/meet-gata-the-automated-...