Luke Harries

Luke Harries originally dismissed Mati’s ElevenLabs plan as “a terrible go-to-market plan.” The company instead built foundational audio models and sold them across developers, enterprises, creators, and consumers. Luke still advises most founders to focus, but says exceptional models, natural demand, financing, and founder-type product owners let ElevenLabs shard itself into discrete businesses without losing velocity.

ElevenLabs scales growth through a matrix of embedded product teams and horizontal channel specialists. Each product has a growth lead acting as its CMO, while experts in performance marketing, SEO, and other channels work across the portfolio; enterprise marketing alone was expected to reach 20 people, versus five to 10 for the mobile app. Luke’s default startup sequence is much leaner: hire one product-fluent generalist growth marketer, then a front-end-leaning growth engineer who can expose value through landing pages, mini-tools, SEO, and automated outreach.

The launch machine begins with one primary claim, builds every asset around it, and manufactures “surround sound” across every available channel. For ElevenLabs Speech-to-Text, the repeated claim was “the most accurate speech-to-text model,” supported by diarization, character-level timestamps, and 99 languages. Tier-one launches get a sharp first tweet, motion-design video, technical blog, ubiquitous cross-posting, and immediate employee amplification; Luke’s instruction is blunt: “You need to be loud” and shamelessly DM the network required to trigger distribution.

Video remains ElevenLabs’s most effective launch medium, with 200,000 to 700,000 views typical and almost all creative attention concentrated in the first 30 seconds. Luke favors motion design for major launches, screen shares for technical buyers, and founder-led films only when the format suits the brand and can hold attention; a motion-design project typically costs $5,000-$10,000. He acknowledges supply could eventually erode video’s advantage, but currently sees no better format for compressing a complex value proposition.

Growth efficiency is managed through CAC payback, not a deceptively precise CAC:LTV model. ElevenLabs accepts roughly 12-24 months, potentially 36 for durable enterprise contracts, and Luke argues that teams comfortably above target should accelerate immediately rather than raising spend by an arbitrary 20% weekly. Individual channels usually get more expensive, but new channels, better activation, virality, conversion, and consumer-to-enterprise expansion can keep blended CAC flat.

Eliminating traditional PMs lets engineers own the entire product loop while former PMs migrate into growth. Engineers choose features, design, ship, and analyze results; an engineering lead owns product quality while a growth lead owns awareness and acquisition, with both sharing activation and retention. Luke estimates 60%-70% of core engineering code is AI-written, though sensitive research code is excluded, and expects PMs increasingly to become either marketing-capable growth leaders or product engineers using tools such as Cursor and Lovable.

Luke reversed his view of conversational AI after helping about 20 customers build voice agents. He had believed sub-200-millisecond interactions would be impossible, but says, “I was completely wrong.” ElevenLabs subsequently productized conversational AI as a platform while explicitly leaving avatar applications to partners such as HeyGen, Synthesia, and Captions. His clearest labor implication is that inbound SDR work—largely BANT data collection—can move into conversational agents that qualify buyers and route them directly to AEs.

🔗 Original source & video: 20Growth: The $6.6B Growth Engine Behind ElevenLabs | Why ElevenLabs Do Not Have PMs | The 7 Part Launch Playbook to Crush All Launches with Luke Harries, Head of Growth @ ElevenLabs