
Zillow’s Toby Roberts says AI ROI only holds when you measure first, not after
At VB Transform 2026, Zillow’s engineering chief laid out how persistent context beats raw data for agentic AI ROI.
By Yousef Al-Zahrani·· 4 min

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3 briefings · “context”

At VB Transform 2026, Zillow’s engineering chief laid out how persistent context beats raw data for agentic AI ROI.

Stop blaming the model. The retrieval layer amplifies stale, inconsistent enterprise data before it ever hits production.

Vinay Perneti and Cat Wu explain why the software around models determines real-world coding results.