Build Voice AI Agents 83% CHEAPER with Ultravox (N8N & Twillio)



Date: 02/22/2025

Watch the Video

Okay, this video by Ahmed Mukhtar is seriously exciting, especially if you’re like me and trying to blend traditional development with AI. He walks through building a Voice AI Agent using Ultravox and N8N that’s both powerful *and* cost-effective. Think appointment scheduling, RAG, personalized interactions – the whole nine yards. But the cool part is how he’s optimizing the stack: ditching OpenAI’s RealTime API for Ultravox (open-source, yes!), swapping Replit for Railway to save a few bucks, and wrapping it all in FastAPI with Windsurf.

Why is this inspiring? Because it’s a concrete example of shifting from closed, often expensive, AI solutions to a more open, customizable, and budget-friendly approach. We’re talking about taking control of our AI workflows. Imagine using this to build a customer service bot that can understand complex queries, schedule appointments directly in your Laravel app, and all without breaking the bank. And the N8N backend? That’s where the real automation magic happens.

Honestly, the part that grabs me is the open-source angle and the focus on cost. We’ve all been there, lured in by the promise of AI only to be hit with a massive bill. The idea of building something this capable for 5 cents a minute? That’s a game-changer. I’m definitely going to be digging into Ultravox and N8N after this. It feels like a solid foundation for building more complex, AI-driven features into our existing projects. Worth a try? Absolutely.