Inworld TTS

Inworld TTS

Inworld
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About

Inworld TTS is a state-of-the-art text-to-speech platform designed to deliver ultra-realistic, context-aware speech synthesis and precise voice-cloning capabilities at a radically accessible price. The flagship model, TTS-1, is optimized for real-time applications and supports low-latency streaming (first audio chunk in ≈200 ms) as well as multiple languages (including English, Spanish, French, Korean, Chinese, and more). Developers can use instant zero-shot voice cloning (5-15 seconds of audio) or professional fine-tuned cloning, add voice-tags for emotion, style, and non-verbal sounds, and switch languages while preserving voice identity. The larger TTS-1-Max model (in preview) offers even more expressive speech and multilingual strength. The platform supports both API and portal access, streaming or batch mode, and is designed for everything from interactive voice agents and gaming characters to branded audio experiences.

About

Zyphra is excited to announce the release of Zonos-v0.1 beta, featuring two expressive and real-time text-to-speech models with high-fidelity voice cloning. We are releasing our 1.6B transformer and 1.6B hybrid under an Apache 2.0 license. It is difficult to quantitatively measure quality in the audio domain; we find that Zonos’ generation quality matches or exceeds that of leading proprietary TTS model providers. Further, we believe that openly releasing models of this caliber will significantly advance TTS research. Zonos model weights are available on Huggingface, and sample inference code for the models is available on our GitHub. You can also access Zonos through our model playground and API with simple and competitive flat-rate pricing. We have found that quantitative evaluations struggle to measure the quality of outputs in the audio domain, so for demonstration, we present a number of samples of Zonos vs both proprietary models.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers and businesses looking for a tool offering multilingual voice synthesis and custom-voice cloning at scale

Audience

Developers and researchers wanting a solution offering text-to-speech models capable of high-fidelity voice cloning and expressive speech generation

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0.005 per minute
Free Version
Free Trial

Pricing

$0.02 per minute
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Inworld
Founded: 2021
United States
inworld.ai/tts

Company Information

Zyphra
United States
www.zyphra.com/post/beta-release-of-zonos-v0-1

Alternatives

Qwen3-TTS

Qwen3-TTS

Alibaba

Alternatives

Vaanika

Vaanika

FuturixAI
Chirp 3

Chirp 3

Google
Fish Audio

Fish Audio

Hanabi AI
Chirp 3

Chirp 3

Google

Categories

Categories

Integrations

Claude
Fireworks AI
GitHub
Google AI Overviews
Groq
Hugging Face
Inworld
LiveKit
Mistral AI
OpenAI
Tenstorrent DevCloud
Vapi AI
gpt-oss-20b

Integrations

Claude
Fireworks AI
GitHub
Google AI Overviews
Groq
Hugging Face
Inworld
LiveKit
Mistral AI
OpenAI
Tenstorrent DevCloud
Vapi AI
gpt-oss-20b
Claim Inworld TTS and update features and information
Claim Inworld TTS and update features and information
Claim Zyphra Zonos and update features and information
Claim Zyphra Zonos and update features and information