CEOInterviews.AI
Start App
Try: AI strategy tariffs earnings guidance layoffs interest rates growth

Dylan Fox

Founder & CEO, AssemblyAI

Search every verified Dylan Fox interview, podcast appearance, and on-the-record quote — each transcript cross-checked by AI and human review to confirm speaker identity. Dylan Fox, founder and CEO of AssemblyAI, appeared on the podcast "Speak to an Agent" in September 2026 to discuss the current state and future of voice AI. He described voice AI as having been "destined to die" several years ago, when the industry focused on text-based agents, but noted that the trend has now reversed with AI agents becoming more reliable and voice technology growing. Fox discussed technical challenges in voice AI, including issues with interruptions, turn-taking, and response latency, stating that users become frustrated when response inactivity exceeds two seconds. Fox said that in the next six months, real-time speech LLMs will emerge that are "much smarter" and will solve many current problems. He acknowledged that while a speech-to-speech model that collapses tasks into one model would solve some issues, it would introduce new ones, and noted that even with current "clunky" cascaded architectures, voice agents can achieve real-world resolution rates of 40 to 50 percent. Fox stated that AssemblyAI remains focused on the ASR infrastructure layer, working on scalability, security, guardrails, and other primitives needed for strong voice capabilities in products and workflows.

Recent appearances

  • Voice AI's Biggest Bottleneck | Dylan Fox

    Season 1 Episode 1 | Voice AI's Biggest Bottleneck | Dylan Fox What It Actually Takes to Ship Voice AI AssemblyAI founder Dylan Fox on why voice AI was left for dead. He unpacks the messy multi-model voice stacks behind today's AI agents. Should AI even try to sound human? A sharp, no-fluff look at what it takes to ship real voice AI. 👉 NiCE: https://www.nice.com/speak-to-an-agent 🔗Connect with Dylan:   / dylanbfox   🔗AssemblyAI: https://www.assemblyai.com/ 🔗Connect with Neeraj:   / neerajsverma   ____________________ 00:00 – Intro 01:10 – Meet Dylan Fox 02:39 – Why Voice AI Is Back 05:04…

    Watch on YouTube ↗

  • AssemblyAI Now Handles 4x YouTube's Daily Volume

    Dylan Fox is the founder and CEO of AssemblyAI, the voice AI infrastructure platform behind AI notetakers, medical scribes, drive through ordering, contact centers and humanoid robots. AssemblyAI went through Y Combinator's first AI batch in 2017 and now serves over 1 million developers with roughly 100 million API calls a day. We get into the volume numbers, why weekly conversations are up over 800% in three years, the three macro trends pulling voice into everything, why coding agents turned small businesses into API customers, how data mixture drives 75% of model quality, the humanoid robo…

    Watch on YouTube ↗

  • Dylan Fox (AssemblyAI) at the Cerebral Valley Voice Summit

    Agents that sound human are important for some applications, but not for others — and there’s no consensus on whether people will embrace human-like agents as they proliferate. Dylan Fox, founder of AssemblyAI, argued that people don’t necessarily want all agents to pretend to be alive. The Cerebral Valley Voice Summit was hosted by Eric Newcomer, Max Child, and James Wilsterman on May 6 in San Francisco. Big thanks to our sponsors Baseten, Felicis, Nebius, AssemblyAI, and Weekend. 👇 Watch more from The Newcomer Podcast: •    / @newcomerpod   🔗 Read more at newcomer.co 🐦 Follow us:…

    Watch on YouTube ↗

  • From PHP Books to Neural Networks: Assembly AI CEO Dylan Fox on the Evolution of Voice AI

    Join Rohan Vasishth on the Skywatch Podcast as he sits down with Dylan Fox, Founder and CEO of AssemblyAI, for a conversation that spans self-taught machine learning, the broken state of voice infrastructure, and what the next decade of voice AI actually looks like. In this episode, Dylan traces AssemblyAI's origin story from teaching himself ML from textbooks at night while doing NLP work at Cisco by day, to recognizing that developers deserved the same frictionless access to voice infrastructure that Stripe gave payments and Twilio gave SMS. We dig into why the architecture debate misses…

    Watch on YouTube ↗

  • This Startup Built the Infrastructure Powering Voice AI

    In this episode of Founder Firesides, YC Managing Partner Jared Friedman talks to Dylan Fox, the Founder of Assembly AI (S17), which has raised $160M to date. AssemblyAI is the voice AI infrastructure platform powering 10,000 companies, including Granola, Zoom and Delta Airlines. https://www.assemblyai.com/ Apply to Y Combinator: https://www.ycombinator.com/apply Work at a startup: https://www.ycombinator.com/jobs Chapters: 02:08 - What AssemblyAI actually does 05:23 - Dylan learns to code and discovers ML 07:11 - The Amazon Echo moment 09:32 - Why Dylan built voice AI infrastructure 13:02…

    Watch on YouTube ↗

  • Promptable Speech Language Models | Dylan Fox (Founder & CEO at AssemblyAI)

    https://voice-ai-newsletter.krisp.ai/p/promptable-speech-language-models?utm_source=youtube.

    Watch on YouTube ↗

  • VapiCon 2025: Technical Deep Dive with Dylan Fox, Founder & CEO, AssemblyAI

    At VapiCon 2025, Dylan Fox, founder and CEO of AssemblyAI, argues that voice is the biggest opportunity for startups today, but accuracy remains the critical bottleneck. Fox traces voice AI's evolution from Siri's 2010 launch to today's ecosystem where 20% of Y Combinator companies build voice AI. He makes the case for shifting from basic speech recognition to true speech understanding—models that detect emotion, handle noisy environments, and operate at global scale—to unlock the next wave of adoption. 💡 Topics Covered: Evolution of voice AI technology Why accuracy is the main bottleneck Spe…

    Watch on YouTube ↗

  • How He Built a $110M AI Company from Scratch (Dylan Fox, Assembly AI)

    In this episode, Wouter Teunissen sits down with Dylan Fox, the founder of AssemblyAI, to unpack how he built one of the fastest-growing AI infrastructure companies from scratch. For decades, speech recognition was stuck in the past, clunky APIs, outdated models, and enterprise-only access. Dylan saw it up close while working as an engineer at Cisco. The tech was powerful, but it was buried under layers of friction. Developers wanted to build with voice, but everything about the process made it painful. Instead of waiting for the giants to fix it, Dylan left his job and started AssemblyAI as…

    Watch on YouTube ↗

  • Investors Don't Make Your Product Better | AssemblyAI, Dylan Fox

    Dylan Fox is the founder and CEO of AssemblyAI, where he's built one of the most accurate and developer-friendly speech AI platforms in the industry. Under his leadership, the company has raised over $130 million from top-tier investors, including Accel, Insight Partners, and former Salesforce co-CEO Keith Block. ✨EO Partner Highlight: EO x Lovable✨ 📍Promo code: EO20YT Provides users with a 20% discount on their first purchase of the Lovable Pro plan Valid until September 30, 2025 Dylan's entrepreneurial journey started unconventionally—after a failed college startup, he spent two years accu…

    Watch on YouTube ↗

  • AI in Action E449: Dylan Fox, Founder and CEO at AssemblyAI

    Today's guest is Dylan Fox, Founder and CEO at AssemblyAI in San Francisco, CA. Founded in 2017, AssemblyAI build on the latest AI breakthroughs to offer state-of-the-art, production-ready AI models. The company's mission is to make State-of-the-art AI models accessible to developers and product teams at an extremely large scale through a simple API. Thousands of startups and global enterprises leverage AssemblyAI to ship AI-powered features and products to their end users. AssemblyAI build on the latest AI research in LLMs, generative AI, and scaling large neural nets to deliver production-r…

    Watch on YouTube ↗

  • Generative AI for Speech Recognition | AssemblyAI Founder & CEO, Dylan Fox

    AssemblyAI Founder & CEO, Dylan Fox joined FirstMark Managing Partner, Matt Turck for Data Driven NYC! AssemblyAI is the fastest way to build with AI for audio. With a simple API, get access to production-ready AI models to transcribe and understand speech. AssemblyAI has raised $63M+. To learn more about AssemblyAI, visit: https://streaklinks.com/Bfadq1lCwtK1n... Data Driven NYC is a monthly event covering Big Data and data-driven products and startups, hosted by Matt Turck, partner at FirstMark Capital.

    Watch on YouTube ↗

  • Authentic Developer Education with Dylan Fox from AssemblyAI

    Dylan Fox is the Founder & CEO of AssemblyAI. AssemblyAI is an AI company that researches, trains, and deploys State-of-the-Art AI models. Thousands of developers and product teams build with AssemblyAI's simple API to automatically transcribe and understand audio data at scale. What we cover (00:20): Could you tell us a little bit about AssemblyAI? (01:10): Could you talk about your content strategy? (03:37): How do you balance the goal of promoting AssemblyAI with creating authentic, useful pieces of content? (09:59) How are you able to produce such in-depth content? (11:22) What was it lik…

    Watch on YouTube ↗

The summary and quote tags on this profile are produced with AI assistance from verified, first-person interview transcripts, then checked by our team to confirm the speaker's identity and the accuracy of every quote. See how we verify →