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Fish Speech

Free#16 of 25 in Voice Cloning SoftwareGame Voice Generators

Fish Speech: A developer-focused open-source TTS system for multilingual, controllable voice generation. Ranked #16 of 25 in Voice Cloning Software by our editors (5.8/10); pricing: Open source; best for multilingual open-source experimentation.

5.8/10Editor score
Visit Fish Speech
Fish Speech5.8 Visit Fish Speech

At a glance

  • Editor score
    5.8 / 10
  • Pricing
    Open source
  • Best for
    Multilingual open-source experimentation
  • Paid from
    None
  • Commercial use
    No
  • Facts checked
    20 Sep 2026
Fish Speech screenshot

  • Where it wins

    • Clones voices from typically 10–30-second reference samples
    • Supports over 80 languages in S2 Pro with prosody and emotion controls
    • Offers WebUI, HTTP API, multi-speaker generation, and Docker deployment

  • Where it doesn't

    • Commercial use requires a separate written license from Fish Audio
    • Running the models requires developer or researcher infrastructure
    • Focused on self-hosted workflows rather than a hosted subscription product

Our verdict on Fish Speech

Fish Speech is an open-source text-to-speech system from Fish Audio for developers and researchers who need self-hosted voice generation. It can create speech from text, clone a voice from typically 10–30-second reference samples, and support multilingual generation. S2 Pro supports over 80 languages, while native multi-speaker and multi-turn generation extend the system beyond single-voice output. The project is available through local WebUI inference, an HTTP API server with TTS endpoints, and Docker deployment for the WebUI and API server.

Its strongest differentiator is control over delivery. Natural-language tags provide fine-grained prosody and emotion control, giving teams a way to direct how generated speech is performed rather than only selecting a voice. Multi-speaker generation is useful for dialogue and other scenes with more than one voice, while multi-turn generation supports longer conversational structures. These capabilities make Fish Speech a fit for experimentation, research workflows, and applications where multilingual output and local inference matter.

The main constraint is the operating model. Fish Speech is intended for teams that can run the models themselves, so it suits technical users more than buyers seeking a managed hosted service. The Fish Audio Research License permits research and non-commercial use; commercial use requires a separate written license from Fish Audio. Choose Fish Speech for open-source, multilingual development with API, WebUI, and Docker options. Choose an alternative if your priority is a ready-made commercial service or a workflow that does not require self-hosted model operation.

Fish Speech pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.
See plans on github.com

Fish Speech fact sheet

Free planNot verified
Paid fromNone
Commercial useNo
API accessYes
Instant cloningYes
Supported languagesNot verified
Monthly character limitNot verified
Cloning methodInstant
Pronunciation controlsNot verified
DeploymentSelf-hosted
PlatformsWeb, Linux
SupportCommunity, Docs
Built forSolo, Small business, Mid-market, Enterprise (editorial estimate)
PricingOpen source
Websitegithub.com
Facts checked20 Sep 2026

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Featured on iTechGuides

Featured on iTechGuides — Fish Speech 5.8/10

Fish Speech is listed in our Voice Cloning Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

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