Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Description

Sonic 3.5 represents Cartesia's most advanced and fluid text-to-speech model, engineered for dynamic voice synthesis with an impressive latency of under 90 milliseconds and proficient in 42 languages. This model is adept at accurately adhering to transcripts, vocalizing confirmation codes, and interpreting heteronyms seamlessly without the need for any preprocessing, while also maintaining the expressiveness required for genuine conversations. It aims to provide speech of native quality across diverse languages, ensuring that audio clarity is prioritized in every voice output, thus eliminating the need for post-production corrections. Sonic 3.5 excels in delivering high-fidelity audio, making it an ideal choice for production environments where quality, speed, and reliability are essential. The model's engaging conversational style features effective pacing and a genuine emotional range, specifically calibrated for diverse support and agent transcripts. Moreover, it naturally articulates alphanumeric sequences—such as order numbers, phone numbers, IDs, and email addresses—in all supported languages, and its context-sensitive English pronunciation ensures that words like "read," "bass," and "bow" are pronounced correctly based on their textual context. This level of sophistication in voice generation not only enhances user experience but also establishes Sonic 3.5 as a leader in the field of text-to-speech technology.

Description

Phonon serves as an open-weight text-to-speech (TTS) model and inference runtime designed for developers seeking to incorporate speech generation into applications that require local and offline audio capabilities. This innovative system transforms text into spoken audio and has the ability to stream speech in real-time as it is produced. The runtime offers interfaces for Rust and Python, a Swift package for iOS and macOS, JavaScript support for web browsers, and libraries for Android; it can also function as a self-hosted server compatible with OpenAI's API. Depending on the variant of the model used, it accommodates languages such as English, French, German, Spanish, and Portuguese. Phonon is tailored for developers aiming to integrate speech functionalities into mobile, desktop, web, embedded, and server applications, particularly in scenarios requiring offline access or enhanced privacy. The English model, which consists of 31 million parameters, is licensed under Apache 2.0, while the language-specific and multilingual models, featuring 40 million parameters, operate under CC BY-NC 4.0. Additionally, the runtime’s code is available under either the Apache 2.0 or MIT licenses, making it accessible for various development needs. This flexibility and wide-ranging support make Phonon a versatile choice for speech synthesis across different platforms.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

No images available

Integrations

Hugging Face No 

Integrations

Hugging Face Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

No price information available.
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based No 
On-Premises Yes 
iPhone App Yes 
iPad App Yes 
Android App Yes 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Cartesia

Founded

2023

Country

United States

Website

docs.cartesia.ai/build-with-cartesia/tts-models/latest

Vendor Details

Company Name

Gradium

Founded

2025

Country

France, United States

Website

gradium.ai/phonon

Alternatives

Alternatives

No Alternatives