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What is Simba 3.2?

Speechify offers multiple Simba models through its text-to-speech API, which is tailored for real-time voice synthesis in English and several European languages, serving a broad spectrum of multilingual needs. For new English integrations, the ideal option is Simba 3.2, which boasts streaming-native synthesis, reduced latency for the first byte, improved expressiveness over earlier editions, and full support for SSML and emotional tone adjustments. On the other hand, Simba 3.0 provides streaming-native speech functionalities in English, German, Spanish, French, Italian, and Brazilian Portuguese, with language selection based on the request or voice locale. Additionally, Simba Multilingual extends its capabilities to 35 locales across 30 languages, allowing for mixed-language content and featuring automatic language identification. The classic Simba English model is still accessible for users who require backward compatibility. Furthermore, developers can effortlessly choose their desired model using a single parameter, facilitating easy transitions without the need to modify other aspects of the request, such as voice settings, audio format, or SSML details. This adaptability empowers developers to fine-tune their integrations to effectively address their unique requirements, ensuring a more tailored user experience.

What is Phonon?

Phonon is an open-weight text-to-speech (TTS) model and inference runtime that caters to developers who wish to integrate speech generation into applications with local and offline audio functionalities. This cutting-edge system converts written text into spoken words and can stream speech in real-time as it is generated. It provides interfaces for programming languages such as Rust and Python, includes a Swift package for iOS and macOS, offers JavaScript support for web browsers, and has libraries available for Android; it can also operate as a self-hosted server compatible with OpenAI's API. The model is designed to support various languages, including English, French, German, Spanish, and Portuguese, depending on the specific variant employed. Phonon is ideal for developers looking to embed speech capabilities into mobile, desktop, web, embedded, and server applications, particularly in situations that prioritize offline use or require enhanced privacy. The English model is comprised of 31 million parameters and is licensed under Apache 2.0, while the language-specific and multilingual models, with 40 million parameters, are available under CC BY-NC 4.0. Furthermore, the runtime's source code is offered under either the Apache 2.0 or MIT licenses, ensuring it is accessible for diverse development requirements. This adaptability and extensive support position Phonon as a highly versatile option for speech synthesis across a variety of platforms, making it a valuable asset for developers in the field.

Media

Media

No images available

Integrations Supported

Integrations Supported

Hugging Face

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided

Pricing Information

Pricing not provided
Free Version

Supported Platforms

SaaS

Supported Platforms

Android
iPhone
iPad
Windows
Mac
On-Prem
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Speechify

Date Founded

2017

Company Location

United States

Company Website

docs.speechify.ai/build/guides/concepts/models

Company Facts

Organization Name

Gradium

Date Founded

2025

Company Location

France, United States

Company Website

gradium.ai/phonon

Categories and Features

Categories and Features

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