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Average Ratings 0 Ratings

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ease
features
design
support

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Description

GPT-Realtime-1.5 is an advanced real-time voice model from OpenAI designed to power interactive audio-based applications such as voice agents and customer support systems. It supports multimodal inputs, including text, audio, and images, and produces both text and audio outputs for dynamic conversations. The model is optimized for speed, delivering fast and responsive interactions that feel natural in live environments. With a 32,000-token context window, it can manage long conversations while maintaining continuity and context. It is particularly suited for applications that require real-time communication, such as call centers and virtual assistants. The model includes support for function calling, enabling seamless integration with external tools and APIs. It is accessible through multiple endpoints, including realtime, chat completions, and responses APIs. Pricing is based on token usage, with separate rates for text, audio, and image processing. The model is designed for scalability, supporting high request volumes depending on usage tiers. Overall, it enables developers to build fast, reliable, and scalable voice-driven applications.

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

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

Integrations

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

Pricing Details

$4.00 per 1M tokens (input)
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

OpenAI

Founded

2015

Country

United States

Website

openai.com

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

Alternatives

Alternatives

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