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Average Ratings 0 Ratings

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ease
features
design
support

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Write a Review

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.

Description

Inworld AI's Realtime TTS-2 represents a cutting-edge voice model designed for instantaneous dialogue, aiming to create a conversational experience that is as human-like as it sounds. This innovative system captures the entirety of an interaction, analyzing the user’s tone, rhythm, and emotional nuances, while also allowing developers to provide voice direction using simple English commands, similar to prompting an AI model. Unlike traditional speech generation that operates in isolation, this model incorporates the context of previous exchanges, ensuring that tone and pacing evolve throughout the conversation, meaning a response can have a completely different impact depending on the preceding context, such as humor or sadness. Furthermore, the Voice Direction feature empowers developers to guide the delivery of speech as a director would with an actor, using intuitive natural language rather than rigid emotion controls or sliders. Additionally, developers can integrate inline nonverbal cues like [sigh], [breathe], and [laugh] directly into the text, which the model seamlessly transforms into corresponding audio events. Notably, Realtime TTS-2 maintains a consistent voice identity across over 100 languages, allowing for smooth language transitions within a single interaction, enhancing its applicability in diverse multilingual settings. This capability ensures that conversations remain fluid and authentic, further bridging the gap between human and machine communication.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Claude Yes 
ChatGPT No 
Fireworks AI Yes 
Gemini No 
Google AI Overviews Yes 
Grok No 
Groq Yes 
Inworld Yes 
LiveKit Yes 
Mistral AI Yes 
OpenAI Yes 
Perplexity No 
Tenstorrent DevCloud Yes 
Vapi AI Yes 
gpt-oss-20b Yes 

Integrations

Claude Yes 
ChatGPT Yes 
Fireworks AI No 
Gemini Yes 
Google AI Overviews No 
Grok Yes 
Groq No 
Inworld No 
LiveKit No 
Mistral AI No 
OpenAI No 
Perplexity Yes 
Tenstorrent DevCloud No 
Vapi AI No 
gpt-oss-20b No 

Pricing Details

$0.005 per minute
Free Trial No 
Free Version No 

Pricing Details

$25 per month
Free Trial No 
Free Version Yes 

Deployment

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

Deployment

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

Types of Training

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

Types of Training

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

Vendor Details

Company Name

Inworld

Founded

2021

Country

United States

Website

inworld.ai/tts

Vendor Details

Company Name

Inworld

Founded

2021

Country

United States

Website

inworld.ai/blog/realtime-tts-2

Product Features

Text to Speech

API No 
Adjust Speaking Rate / Pitch No 
Audio Optimization No 
Custom Lexicons No 
Different Voice Choices No 
Multi-Language Support No 
Synchronize Speech No 

Product Features

Text to Speech

API No 
Adjust Speaking Rate / Pitch No 
Audio Optimization No 
Custom Lexicons No 
Different Voice Choices No 
Multi-Language Support No 
Synchronize Speech No 

Alternatives

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