Speaker Notes

The Future of Audio AI: Insights from Mati Staniszewski of ElevenLabs

ElevenLabs scales voice AI through abstract vectors and end-to-end architecture, structuring teams to decouple fundamental research from engineering optimization while managing competitive startup dynamics.

AI Native Dev · 1:02:09 · YouTube ↗

Podcast interview · host and CEO guest  Intermediate · concepts and product strategy

Highlights

5 clips · 5 min of 62 min
    • Traditional voice cloning hardcodes characteristics like gender, age, and emotion.
    • Instead, use abstract vectors to let models determine their own representation parameters.
    • Leveraging Transformer and diffusion architectures allows scaling to millions of parameters.
    • Separate fundamental model researchers from research engineers focusing on current generation improvements.
    • Maintain a core research team of elite scientists to drive breakthrough papers.
    • Deploy research engineers to quickly replicate papers and optimize performance like latency.
    • Core research teams focus on net-new breakthroughs and top-tier conference papers.
    • Research engineering teams take existing models and optimize them for speed and production readiness.
    • Dividing these concerns allowed ElevenLabs to slash time-to-first-byte latency down to 75 milliseconds.
    • Building conversational audio requires solving complex human dynamics like natural interruptions and pacing.
    • Providing end-to-end solutions enables deeper optimization of turn-taking predictors compared to modular blocks.
    • Keeping APIs wide open can lead to customers building and launching target features before the platform does.
    • A client released a complete dubbing solution two weeks before ElevenLabs, capturing the initial market opportunity.
    • Operating as small, highly independent teams of five to ten drives extreme ownership.
    • Removing corporate titles prevents ladder-climbing and ensures the best ideas win regardless of seniority.

Questions this video answers

7 · every answer cites the moment it was said
01 Why did you pivot away from the initial end-to-end dubbing solution? 2 sources · 10:29

The initial dubbing prototype stitched together underdeveloped speech-to-text, translation, and text-to-speech models, resulting in subpar quality. User feedback confirmed that creators were unsatisfied with the output, prompting the team to step back and focus on the core text-to-speech component.

02 How do you model voice characteristics without hardcoding attributes like age and gender? 2 sources · 16:05

Instead of mapping explicit demographic and emotional traits, the model is designed to autonomously choose abstract vector numbers for voice characteristics. This approach leverages Transformer and diffusion architectures, allowing the system to handle a much larger scale of properties.

03 How do you balance foundational research with optimizing existing models? 2 sources · 25:27

The company splits its technical workforce into two dedicated teams with distinct profiles. A very small core research team focuses on net-new breakthroughs and top-tier conference papers, while a research engineering team optimizes current-generation models and closes performance gaps.

04 Why did you expand from modular APIs to end-to-end conversational AI? 3 sources · 31:04

Developers and enterprises were spending months building custom conversational experiences using isolated text-to-speech blocks, which often resulted in inconsistent user experiences. By providing an end-to-end conversational solution, ElevenLabs can optimize features like turn-taking and interruptions directly within the model stack. This meets customers where they are by solving their entire problem rather than just a piece of it.

05 How do you manage the risk of competing with companies building on your platform? 2 sources · 39:18

ElevenLabs aims to keep its core solutions horizontal while focusing deeply on specific verticals like conversational AI and media dubbing. They try to maintain transparency by giving early notice to partners when entering new spaces so they can collaborate rather than compete. Ultimately, they position themselves as partners that provide audio advantages while leaving domain-specific integrations to startups.

06 Why did ElevenLabs decide to eliminate corporate titles? 3 sources · 52:32

The company removed corporate titles to foster a flat organization where individual contributors feel they can make an immediate impact without being limited by hierarchy. Team leads are treated as temporary assignments rather than permanent manager titles, ensuring that the best ideas win regardless of seniority. They also use this approach to attract senior talent who care more about execution than climbing a traditional ladder.

07 What excites you about the future intersection of AI and education? 2 sources · 1:01:02

Massive context windows will allow multimodal AI models to retain a person's life history and accumulated knowledge. This capability can power personalized AI tutors that act as lifelong learning companions across various subjects. Such systems will revolutionize education by providing hyper-personalized, context-aware assistance tailored to an individual's unique experiences.

Section-by-section summary

12 parts

Founding ElevenLabs and Finding Product-Market Fit

Two long-time friends founded ElevenLabs in early 2022 after leaving their previous tech roles to explore audio AI. After validating the problem space and hiring their first few employees, they publicly launched the product in early 2023.

Pivoting from Full Dubbing to Text-to-Speech

The company's original motivation was fixing poor foreign film dubbing, which required combining speech-to-text, translation, and text-to-speech. Because the underlying technologies were immature, they paused full dubbing to focus on mastering text-to-speech and voice cloning first.

Breaking Down the Audio Stack into Modular Models

While the ultimate future points to a unified multimodal model, breaking the audio stack into modular components allowed focused innovation. They built custom text-to-speech models that infer context and emotion rather than relying on brittle heuristics.

Letting Models Learn Voice Characteristics Abstractly

Rather than hardcoding attributes like age, gender, and emotion, they used Transformer and diffusion techniques to let the model define its own abstract vector representations. This approach scales naturally and captures voice nuances far better than manual feature engineering.

Balancing Fundamental Research with Product Optimization

Long-term market leadership requires betting on next-generation multimodal voice-to-voice models rather than just optimizing current infrastructure. However, meeting immediate enterprise requirements necessitates dedicated engineering effort alongside horizon-scanning research.

Structuring Teams for Breakthroughs Versus Iteration

The organization is split between a tiny, elite core research team focused on net-new breakthroughs and a research engineering group dedicated to implementation and latency reduction. This structure enables the company to push scientific boundaries while remaining competitive.

Expanding from building blocks to end-to-end conversational AI

While initially offering modular text-to-speech APIs, the company expanded into end-to-end conversational solutions because developers struggled to stitch together low-latency audio stacks. By embedding turn-taking and interruption predictors directly into the platform, they meet enterprise demands for robust real-time voice applications.

Navigating the tension between platform provider and competitor

Foundation model companies face strategic risks when their API users build products that overlap with internal roadmaps. ElevenLabs aims to keep horizontal layers open while partnering closely with domain-specific applications, notifying key clients when entering adjacent spaces like conversational AI.

Targeting real-time multilingual translation and call center automation

Over the next few years, the company aims to solidify audio intelligence by enabling real-time cross-language live stream dubbing and deep call center integration. The goal is to move from a pure model provider to a complete audio platform supporting complex live communication workflows.

Leveraging audio-specific research and specialized data labeling

Unlike text-based LLMs dominated by sheer scale, audio compression and generation are still early enough to benefit from novel research architectures. ElevenLabs uses dedicated human voice coaches and data labelers to curate emotional nuance, creating a proprietary data advantage.

Operating flat organizations with no corporate titles

With a team approaching 150 people divided into small autonomous units, ElevenLabs enforces a strict no-titles policy to ensure impact is driven by individual contributions rather than ladder climbing. Transparent team assignments and flexible compensation allow brilliant individual contributors to earn as much as managers.

Envisioning personalized AI tutors with massive context windows

Looking broadly at the AI landscape, the convergence of multimodal models and infinite context windows presents massive potential for personalized education. Future systems will leverage a person's lifelong history to act as an integrated tutor across academic, technical, and professional domains.

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  • Transformer2× · first 16:29

    Neural network architecture used alongside diffusion models to handle abstract voice vectors in audio generation.

  • Speaker diarization2× · first 8:02

    The process of detecting and separating different speakers within an audio conversation.

  • Research engineering4× · first 25:31

    A specialized team that implements papers and optimizes current-generation models rather than creating net-new research breakthroughs.

  • Conversational AI9× · first 30:42

    An end-to-end product solution that handles turn-taking, latency, and interruptions for voice interactions.