Uber details closed-loop evals for a multimodal food agent at scale

AI Engineer · youtube · 2026-07-25

Uber explains how it built closed-loop evaluations for a multimodal food-enhancement agent used to improve dish photos for Uber Eats merchants.

The talk focuses on the hard parts: keeping edits faithful to the original dish, preserving each merchant’s branding and packaging, avoiding marketplace homogenization, and building evals without an existing playbook. It covers reward hacking, the mix of offline and online signals, and how Uber balanced creativity with strict safety guardrails at scale.

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