Kokoro

Kokoro TTS

An 82M-parameter open model from Hexgrad that delivers studio-quality speech at nearly 100x real-time.

Jijjiirama 5,000 character limit

Daangeessii kitaaba keessan keessaa tag SSML akka itti fayyadamtan:

<speak><prosody rate="slow">Slow speech</prosody></speak>

Tag'oota mo'ellaa filatamee beekuu - cuqaasi akka tokkotti galchiin gara teekstaatti yoo ta'e:

Mo'ellaan kun kitaaba salphaa baraa, kan akka taggaa inniin linjii hin beekkamne. Akka taggaa-based emooshiniitti, mo'ellaa akka Orpheus ykn Bark.

Haalli fuula

-12 +12
0.5x 2.0x
Birrii fi Piper, VITS, MeloTTS
Oduu kee kan uumame yooka'u yooka'u. Suuraa moolaa, galchi kitaaba, fi bu'u Jijjiira.
Audion itti fufuu
0:00
Fuula Oduu Fuula Liqii dhumaa 24 sa'a keessatti
Tarree hin-ga'iin: fayyadama namaatiif. Liiziinii Kominikeeshinii irraa $5/mo
TTS.ai jaallatan? Sochii keessanitti hiika!

Fuulaa Kokoro

Kokoro, built by Hexgrad, is a deliberately tiny 82-million-parameter model that punches far above its size class. It uses a StyleTTS + ISTFTNet architecture and was trained on roughly 1,200 hours of speech, yet generates audio close to 100x faster than real-time on a GPU while staying remarkably natural and expressive. It covers English, Japanese, Chinese, French, Italian, Portuguese, Spanish, and Hindi with a varied set of expressive voicepacks, and supports streaming. The combination of small footprint, low latency, and a permissive license has made Kokoro one of the most popular free models for high-volume and streaming use — it carries the largest share of traffic on TTS.ai.

Fakkeenyaaf: High-quality TTS with minimal latency, streaming applications

Fuulaa Kokoro Dhaamsa

Akkasumas

Deebi'aa
Hexgrad
Lizenz
Apache 2.0
Daandiin
free
Jijjiiramni
fast
Dhaabbilee
Haata'u
Afaan Oromoo
English, Japanese, Chinese, French, Italian, Portuguese, Spanish, Hindi
Akkasumas
500

Kokoro Dhaamsa

Adam

English
Birrii Male

Alex

Spanish
Birrii Male

Alex

Portuguese
Birrii Male

Alpha

Japanese
Birrii Female

Alpha

Hindi
Birrii Female

Bella

English
Birrii Female

Dora

Portuguese
Birrii Female

Dora

Spanish
Birrii Female

Emma (British)

English
Birrii Female

George (British)

English
Birrii Male

Gongitsune

Japanese
Birrii Female

Heart

English
Birrii Female

Isabella (British)

English
Birrii Female

Lewis (British)

English
Birrii Male

Michael

English
Birrii Male

Nicola

Italian
Birrii Male

Nicole

English
Birrii Female

Omega

Hindi
Birrii Male

Sara

Italian
Birrii Female

Sarah

English
Birrii Female

Siwis

French
Birrii Female

Sky

English
Birrii Female

Xiaobei

Chinese
Birrii Female

Xiaoni

Chinese
Birrii Female

Xiaoxiao

Chinese
Birrii Female

Yunjian

Chinese
Birrii Male

Kokoro TTS — FAQ

Yes. Kokoro is released under the Apache 2.0 license and sits in the free tier, so it can be used commercially at no cost.

Kokoro is only 82M parameters and uses an efficient StyleTTS + ISTFTNet design, letting it generate audio nearly 100x faster than real-time on a GPU with just ~1.5GB VRAM while staying natural-sounding.

Kokoro supports English, Japanese, Chinese, French, Italian, Portuguese, Spanish, and Hindi, each with its own expressive voicepacks. It does not support voice cloning.
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