Ola Zytek

Research Engineer at Sierra

Ola Zytek is a Research Engineer at Sierra, focused on building conversational agents and retrieval systems through post training and evaluation. Prior to joining Sierra, she completed her PhD at MIT, where she specialized in building systems to support human decision-making with machine learning.

Posts

Announcement · March 2026 sierra.ai ↗

τ³-Bench: Advancing Agent Benchmarking to Knowledge and Voice

τ³-bench extends the benchmark family with the τ-knowledge and τ-voice tracks, advancing agent evaluation to unstructured knowledge and real-time voice.

Victor Barres, Ben Shi, Ola Zytek, Soham Ray, Keshav Dhandhania & Pedram Razavi

Research · February 2026

τ-knowledge

A benchmark for evaluating AI agents in knowledge-intensive customer support: a realistic fintech knowledge base of 698 documents paired with tasks requiring multi-step reasoning, policy application, and tool use.

Ben Shi, Ola Zytek & Pedram Razavi