Zyphra Zonos is a text-to-speech (TTS) tool that offers expressive and real-time voice cloning. It features both transformer and hybrid models for high-fidelity audio generation.
At a glance
Pricing
Freemium · Paid · Usage-based · Enterprise · Open Source
Zyphra Zonos is a cutting-edge text-to-speech (TTS) platform that provides expressive and real-time voice cloning capabilities. It features two 1.6B models: a transformer and an SSM hybrid, with the latter being the first open-source SSM model for TTS. These models are trained on approximately 200,000 hours of speech data, primarily English but also including Chinese, Japanese, French, Spanish, and German. Zonos allows for highly expressive and natural speech generation from text prompts, speaker embeddings, or audio prefixes. It also supports high-fidelity voice cloning from short audio clips (5-30 seconds) and can be conditioned based on speaking rate, pitch, audio quality, and emotions like sadness, fear, anger, happiness, and surprise, outputting speech natively at 44KHz. The models are released under an Apache 2.0 license, with weights available on Huggingface and inference code on Github. Users can access Zonos via a model playground and API.
Best used for
Ideal for developers and content creators who need to generate natural-sounding speech, clone voices for various applications, and integrate advanced TTS capabilities into their projects. Especially valuable for those requiring real-time audio output, emotion control, and multi-language support in their speech synthesis.
Freemium · Paid · Usage-based · Enterprise · Open Source
Not Disclosed
FAQs
What are the key differences between the transformer and SSM hybrid models in Zonos?
The Zonos suite includes both a 1.6B transformer model and a 1.6B SSM hybrid model. The SSM hybrid model is notable as the first open-source SSM model for TTS and offers more efficient performance characteristics, including reduced latency and memory overhead, compared to its transformer counterpart.
What are the pricing options for using Zyphra Zonos?
Zonos offers a freemium model with 100 free minutes per month. Paid options include a Pro Tier at $5 per month for 300 minutes, and a flat-rate usage-based pricing of $0.02 per minute. Custom Enterprise Tiers are also available for larger needs.
What languages does Zonos support for speech generation?
The Zonos models are primarily trained on English data, but also include substantial amounts of Chinese, Japanese, French, Spanish, and German. While other languages are present in the training dataset, performance on them may not be as robust.
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