Fish Audio vs Kokoro TTS
Fish Audio
fish.audio
Kokoro TTS
github.comSide by side
| Figure | Fish Audio | Kokoro TTS |
|---|---|---|
| Price from | $11/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 5 | 1 |
| Spec score · Text-to-Speech Software | 9.0 (#11) | 8.6 (#41) |
| Spec score · Text-to-speech tools | 9.1 (#13) | 8.6 (#48) |
| Spec score · AI voice generators | 8.9 (#4) | 8.5 (#11) |
| API access | Yes | Yes |
| Commercial use | The pricing page says free plan users may use generated content only for personal, non-commercial projects, while premium subscribers may commercially use verified voices they own. | Yes |
| Free plan | Yes | Yes |
| Integrations | The enterprise page lists integrations or ecosystem connections for Vapi, Twilio, Retell, and workflow automation tools. | The maker provides examples using Google Colab and points to a Hugging Face demo; the model page also lists inference providers and notebooks. |
| Languages | Fish Audio states that TTS automatically supports eight languages with native accents. | The usage documentation lists American English, British English, Spanish, French, Hindi, Italian, Japanese, Brazilian Portuguese, and Mandarin Chinese. |
| Support | Enterprise support includes 24/7 production support, a technical account manager, and a stated 99% uptime SLA. | The repository links to a Discord community for Kokoro users and contributors. |
| Voice cloning | Yes | No |
Plans
Fish Audio
- Free TierFree
- Plus$11 a month
- Pro$75 a month
- Max$749 a month
- EnterprisePriced on request
In their own words
Fish Audio
Fish Audio provides text-to-speech, voice cloning, speech-to-text, voice agents, and other audio tools. Its text-to-speech controls cover emotion and expression, real-time generation, multilingual output, speed, volume, and model parameters. Fish Audio says TTS supports eight languages with native accents and its platform hosts more than 2,000,000 voices. Developers can use the API for speech generation, voice cloning, and transcription through REST, WebSocket streaming, and official Python and TypeScript SDKs. The listed platforms include web, Linux, macOS, Windows, API access, and self-hosting. Use cases named by the company include video voiceovers, audiobook narration, character voices, and conversational chatbots. The Free Tier costs nothing and allows 8,000 monthly credits, up to 7 minutes of generation, and personal, non-commercial use. Plus costs $11 a month, billed $132 billed annually; paid plans are listed from $15/mo. Commercial use is listed as available. Enterprise deployments include VPC, on-premises, air-gapped, and sovereign cloud options. Fish Audio says default data stays in the United States and self-hosted deployments run inside customer infrastructure. Unused monthly minutes do not roll over.
Kokoro TTS
Kokoro TTS is an open-weight text-to-speech model with 82 million parameters. It uses a decoder-only architecture built with StyleTTS 2 and ISTFTNet, and supports eight languages. In the documented Python pipeline, users can choose a voice and adjust speech speed; generated audio is 24 kHz and can be saved as WAV. The kokoro.js library runs the model locally in a browser through Transformers.js, also documents Node CPU use, and supports streaming speech as text is added. The model weights use the Apache license, and commercial use is listed as permitted. The maker describes Kokoro as lightweight and more cost-efficient than larger models while delivering comparable quality. Python installation uses kokoro, soundfile, and espeak-ng, with Misaki handling grapheme-to-phoneme processing. The README includes Windows setup guidance for espeak-ng and Apple Silicon GPU instructions for macOS M1 through M4. Examples point to Google Colab and a Hugging Face demo. Kokoro is free, with a free plan listed at free.