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VITS

CSS10 (Spanish)

Free Spanish Neutral VITS

CSS10 (Spanish) is a neutral AI voice powered by the VITS text-to-speech model. This free-tier voice speaks Spanish and delivers good-quality speech synthesis. With near-instant generation speed and a quality rating of 3/5, CSS10 (Spanish) is well-suited for general-purpose text-to-speech with natural prosody. The VITS engine is developed by Jaehyeon Kim et al. under the MIT license, making it safe for commercial use. Key capabilities include: end-to-end synthesis, natural prosody, fast inference, multiple speakers.

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VITSModel Information

Model VITS
Developer Jaehyeon Kim et al.
Quality
Speed Fast
License MIT
Cloning Not available
Tier Free (no characters used)
Parameters 25M
Architecture VAE + Normalizing Flows + GAN
Training Data 585 hours
Year 2021

Best Use Cases for CSS10 (Spanish)

Recommended applications based on this voice's characteristics

Audiobooks & Narration

Use CSS10 (Spanish) 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 VITS Voices

Other voices from the same TTS model

CSS10 (Dutch)

Dutch Neutral

CSS10 (Finnish)

Finnish Neutral

CSS10 (French)

French Neutral

CSS10 (German)

German Neutral

CSS10 (Hungarian)

Hungarian Neutral

Common Voice (Bulgarian)

Bulgarian Neutral
View all VITS Voices

Frequently Asked Questions

VITS (Variational Inference with adversarial learning for end-to-end Text-to-Speech) is a parallel end-to-end TTS method that generates more natural sounding audio than current two-stage models. It adopts variational inference augmented with normalizing flows and an adversarial training process, achieving a significant improvement in naturalness.

VITS was developed by Jaehyeon Kim et al. and is released under the MIT license, which permits commercial use of generated audio.

VITS supports 11 languages: English, German, Spanish, French, Portuguese, Dutch, Finnish, Hungarian and more.

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

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

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

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

Yes, VITS is specifically recommended for general-purpose text-to-speech with natural prosody. Its end-to-end synthesis, natural prosody, fast inference capabilities make it an excellent choice for this use case.

Yes, VITS is licensed under MIT, which allows commercial use. Audio generated with VITS 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.

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Type any text and hear it spoken by CSS10 (Spanish). Free to use with no characters required.

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