Fish Audio Reels In $52M Seed a Year After Starting in a Bedroom — With $21M ARR and 8M Users

Fish Audio has raised $52 million in seed funding on its first anniversary, a round that lands with the kind of traction most startups spend a Series B chasing: $21 million in annual recurring revenue and more than 8 million users, according to TechCrunch and the company's announcement.

The round was co-led by Coreline Ventures and Capital Today, with participation from 359 Capital, Play Time, HF0, 645 Ventures, Parable, Carya Venture Partners and Alphalist Partners, alongside angel investors.

From a single gaming GPU to OpenAI's stack

The origin story is unusually literal about the "passion project" cliché. Co-founder and chief scientist Shijia Liao — a former Nvidia video researcher and self-described lifelong VTuber and anime fan — built the first models on a single gaming GPU in his bedroom, frustrated by the flatness of existing synthetic voices.

A year later, Fish Audio's technology sits inside a striking roster of AI companies: OpenAI, HeyGen, Retell, LiveKit, Telnyx and Sanas all use it. The platform can clone a voice from a five-second clip in roughly fifteen seconds, supports 83 languages, and offers word-level emotion control driven by more than 15,000 natural-language prompts.

Why voice, why now

Voice has become the interface layer of the agentic era. As enterprises deploy AI agents that talk — support lines, outbound calling, real-time translation — the demand is shifting from robotic text-to-speech toward voices that carry emotion, switch languages mid-sentence, and respond with sub-second latency. Fish Audio's customer list of AI-infrastructure companies suggests it has positioned itself as a supplier to the suppliers, rather than chasing end users directly.

The company says it will deploy the capital across three fronts: expanding its model lineup with voice-native LLMs and speech-to-speech tools, deepening developer integrations with partners like LiveKit and Retell, and building an enterprise sales team.

The competitive squeeze

Fish Audio enters a crowded and well-capitalized field — ElevenLabs sits atop it, with a long tail of well-funded challengers and open-source alternatives eroding pricing from below. Its defensibility rests on the same thing that got it here: model quality good enough that the biggest AI companies chose to build on it rather than in-house. Whether that holds as frontier labs bring voice generation native — OpenAI among them, and also a customer — is the tension baked into the round. For now, $21 million of ARR in twelve months is the answer that mattered to investors.