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ease
features
design
support

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Description

Grok Text to Speech (TTS) is an independent audio API designed to enable developers to quickly create natural and dynamic speech from written text. Utilizing the same technology that supports Grok Voice, Tesla automobiles, and Starlink client services, this API simplifies the integration of high-quality voice synthesis into various applications, including voice agents, accessibility solutions, podcasts, digital assistants, customer interaction platforms, and immersive audio products. Grok TTS provides the capability to convert lengthy text into spoken words via a REST API, or to produce speech instantly using a WebSocket API, offering developers the flexibility needed for both batch audio generation and real-time conversational applications. The API emphasizes expressive delivery rather than monotonous narration, allowing for refined control through user-friendly inline and wrapping speech tags. By incorporating tags, developers can infuse natural prosody and emotion into the speech output, resulting in a more lifelike delivery without the need for complicated markup. This makes Grok TTS an invaluable tool for enhancing user engagement and creating more interactive experiences.

Description

Inworld TTS stands out as a cutting-edge text-to-speech solution that provides exceptionally realistic and context-aware speech synthesis alongside advanced voice-cloning features, all at an incredibly affordable price. Its leading model, TTS-1, is tailored for real-time usage, boasting low-latency streaming capabilities—where the first audio segment is available in about 200 milliseconds—and supports a wide array of languages such as English, Spanish, French, Korean, Chinese, and several others. Developers have the flexibility to utilize instant zero-shot voice cloning, requiring only 5 to 15 seconds of audio input, or opt for more detailed fine-tuned cloning, enabling the addition of voice-tags that convey emotion, style, and non-verbal cues, while also allowing for language switching without losing the unique voice identity. For those seeking even greater expressiveness and multilingual capabilities, the TTS-1-Max model is currently in preview, offering enhanced features. The platform accommodates various access methods, including API and portal options, and can operate in either streaming or batch modes, making it suitable for a diverse range of applications such as interactive voice agents, gaming characters, and bespoke audio branding experiences. With its versatility and advanced technology, Inworld TTS is poised to revolutionize how we interact with synthetic voices.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

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

Integrations

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

Pricing Details

No price information available.
Free Trial
Free Version

Pricing Details

$0.005 per minute
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

xAI

Founded

2023

Country

United States

Website

x.ai/news/grok-stt-and-tts-apis

Vendor Details

Company Name

Inworld

Founded

2021

Country

United States

Website

inworld.ai/tts

Product Features

Product Features

Text to Speech

API
Adjust Speaking Rate / Pitch
Audio Optimization
Custom Lexicons
Different Voice Choices
Multi-Language Support
Synchronize Speech

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