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Kitten TTS

Rosie

Free English Female Kitten TTS

Rosie is a female AI voice powered by the Kitten TTS text-to-speech model. This free-tier voice speaks English and delivers good-quality speech synthesis. With near-instant generation speed and a quality rating of 3/5, Rosie is well-suited for fast lightweight tts, edge deployment, low-latency applications. The Kitten TTS engine is developed by KittenML under the Apache 2.0 license, making it safe for commercial use. Key capabilities include: cpu-only inference, under 80mb model size, 8 built-in voices, speed control, onnx-based.

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Kitten TTSModel Information

Model Kitten TTS
Developer KittenML
Quality
Speed Fast
License Apache 2.0
Cloning Not available
Tier Free (no characters used)
Parameters 80M
Architecture ONNX
Year 2025

Best Use Cases for Rosie

Recommended applications based on this voice's characteristics

Audiobooks & Narration

Use Rosie to narrate long-form content with natural prosody and expression.

Video Voiceovers

Add professional narration to YouTube videos, ads, and social media content.

Apps & Accessibility

Fast generation makes this voice ideal for real-time apps, screen readers, and accessibility tools.

E-Learning & Training

Create engaging training materials, courses, and educational content with clear AI narration.

More Kitten TTS Voices

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Bella

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Bruno

English Male

Hugo

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Jasper

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Kiki

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Leo

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View all Kitten TTS Voices

Frequently Asked Questions

Kitten TTS by KittenML is an ultra-lightweight text-to-speech model built on ONNX. With variants from 15M to 80M parameters (25-80 MB on disk), it delivers high-quality voice synthesis on CPU without requiring a GPU. Features 8 built-in voices, adjustable speech speed, and built-in text preprocessing for numbers, currencies, and units. Ideal for edge deployment and low-latency applications.

Kitten TTS was developed by KittenML and is released under the Apache 2.0 license, which permits commercial use of generated audio.

Kitten TTS supports 1 language: English.

Kitten TTS is in the Free tier — free — no credits required. You can preview any Kitten TTS voice for free before generating full audio.

Kitten TTS has very fast generation speed. It runs in near real-time, making it suitable for streaming and interactive applications.

Kitten TTS is rated 3/5 for audio quality on TTS.ai. It delivers good quality speech suitable for most applications.

No, Kitten TTS uses a fixed set of built-in voices. For voice cloning, try models like CosyVoice 2, GPT-SoVITS, or Chatterbox.

Yes, Kitten TTS is specifically recommended for fast lightweight tts, edge deployment, low-latency applications. Its cpu-only inference, under 80mb model size, 8 built-in voices capabilities make it an excellent choice for this use case.

Yes, Kitten TTS is licensed under Apache 2.0, which allows commercial use. Audio generated with Kitten TTS voices can be used in videos, podcasts, apps, games, and any other commercial project.

Yes, all voices on TTS.ai use commercially-licensed open-source models (MIT, Apache 2.0). The generated audio is yours to use in videos, podcasts, apps, games, and any other commercial application.

Send a POST request to /api/v1/tts/ with the model name and voice ID. See our API Documentation page for code examples in Python, JavaScript, Go, and cURL.

Yes, click the play button on this page to hear a sample. You can also type custom text on the Text to Speech page and generate a free preview with any voice.

Try Rosie Now

Type any text and hear it spoken by Rosie. Free to use with no characters required.

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