AI exposes a major web security flaw, plus a new kind of voice model

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This week on Mixture of Experts, host David Zax is joined by Ash Minhas, Judith Aquino and Jessica Nahulan to discuss how AI is testing the systems we rely on, from cybersecurity to model evaluation.

First, the panel examines PHP2Shell and what happens when AI can find vulnerabilities faster than organizations can fix them. Can our aging software infrastructure keep up?

Next, Block's Dessa introduces a voice model trained entirely on speech that can listen and talk simultaneously. The panel discusses what makes this approach different and how to evaluate a model designed to converse more like a human.

Then, a new cultural riddles benchmark reveals gaps in how language models interpret cultural context, prompting a broader debate about whether today's benchmarks reward guessing over admitting uncertainty.

Plus, IBM Field CTO Kiyu Gabriel joins from IBM TechXchange 2026 to discuss Streamhouse and how AI agents are changing the demands on enterprise data infrastructure.

00:00 – Intro

01:18 – AI discovers major PHP2Shell flaws

14:30 – Dessa: An AI model trained on speech

22:38 – Cultural riddles reveal model blind spots

30:22 – IBM TechXchange: Data for the agent era

All that and more on Mixture of Experts.

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