In this episode, we sit down with the co-founder of Koyal, a groundbreaking YC F25 startup that’s reimagining how we create video. Koyal transforms ordinary audio into dynamic, lifelike video using cutting-edge AI. We talk about the moment that sparked the idea, the challenges of teaching machines to understand voice and emotion, and what it means for the future of content creation. Whether you’re a filmmaker, podcaster, or just curious about where AI storytelling is headed, this conversation offers a fascinating glimpse into the technology that could make traditional cameras a thing of the past.

https://koyal.ai

We talk with Kenneth Wu, co-founder of Mundo AI (YC W25) — the company on a mission to make AI truly multilingual.

Most large language models are trained mainly on English data, leaving billions of people underrepresented. Mundo AI is changing that by building high-quality multilingual datasets that help AI models understand and perform across the world’s languages — from Hindi and Arabic to Swahili and beyond.

Kenneth shares how his team works directly with native speakers, builds scalable data-collection pipelines, and ensures cultural and linguistic accuracy that machine-translation shortcuts can’t achieve. We also dive into what it takes to make AI global, why it matters for the next generation of models, and the opportunities ahead for multilingual AI.