Mosaic Research Articles

2 articles

Databricks

261 min read

AI•2026-03-20

coSTAR: How We Ship AI Agents at Databricks Fast, Without Breaking Things

This post introduces coSTAR, Databricks' methodology for reliably testing and iterating on AI agents using MLflow.

Meet KARL: A Faster Agent for Enterprise Knowledge, powered by custom RL

Databricks introduces KARL, a custom RL-trained knowledge agent that outperforms frontier models in cost, latency, and quality for enterprise grounded reasoning tasks.

Mosaic Research