Inworld TTS

Inworld TTS

Inworld
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About

Azure Voice Live API is a fully managed solution for building low-latency, high-quality speech-to-speech agents through one unified interface. It combines speech recognition, generative AI, and text-to-speech, allowing developers to send audio input and receive audio output, synchronized avatar visuals, and action triggers without manually orchestrating separate backend components or deploying the underlying models. It supports more than 140 speech-to-text locales and over 600 standard voices across 150+ text-to-speech locales, with options for phrase lists, custom speech, custom voices, and brand-aligned avatars. Developers can choose among multiple generative AI models, including GPT-Realtime, GPT-5, GPT-4.1, GPT-4o, Phi, and compatible bring-your-own models, depending on the intelligence, speed, and latency required. Advanced conversational features include noise suppression, echo cancellation, robust interruption detection, and end-of-turn detection.

About

Inworld TTS is a state-of-the-art text-to-speech platform designed to deliver ultra-realistic, context-aware speech synthesis and precise voice-cloning capabilities at a radically accessible price. The flagship model, TTS-1, is optimized for real-time applications and supports low-latency streaming (first audio chunk in ≈200 ms) as well as multiple languages (including English, Spanish, French, Korean, Chinese, and more). Developers can use instant zero-shot voice cloning (5-15 seconds of audio) or professional fine-tuned cloning, add voice-tags for emotion, style, and non-verbal sounds, and switch languages while preserving voice identity. The larger TTS-1-Max model (in preview) offers even more expressive speech and multilingual strength. The platform supports both API and portal access, streaming or batch mode, and is designed for everything from interactive voice agents and gaming characters to branded audio experiences.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers seeking to build low-latency conversational voice agents with real-time speech recognition, synthesis, and bidirectional interaction

Audience

Developers and businesses looking for a tool offering multilingual voice synthesis and custom-voice cloning at scale

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$0.005 per minute
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Microsoft
Founded: 1975
United States
learn.microsoft.com/en-us/azure/ai-services/speech-service/voice-live

Company Information

Inworld
Founded: 2021
United States
inworld.ai/tts

Alternatives

Alternatives

Qwen3-TTS

Qwen3-TTS

Alibaba
Chirp 3

Chirp 3

Google

Categories

Text to Speech Supported

Categories

Integrations

Claude Not Supported
Claude for Legal Not Supported
Fireworks AI Not Supported
GPT-4.1 Supported
GPT-4o Supported
GPT-5 Supported
Google AI Overviews Not Supported
Groq Not Supported
Inworld Not Supported
LiveKit Not Supported
MAI-Voice-2-Flash Supported
Microsoft Azure Supported
Mistral AI Not Supported
OpenAI Not Supported
Phi-4 Supported
Tenstorrent DevCloud Not Supported
Vapi AI Not Supported
gpt-oss-20b Not Supported
gpt-realtime Supported

Integrations

Claude Supported
Claude for Legal Supported
Fireworks AI Supported
GPT-4.1 Not Supported
GPT-4o Not Supported
GPT-5 Not Supported
Google AI Overviews Supported
Groq Supported
Inworld Supported
LiveKit Supported
MAI-Voice-2-Flash Not Supported
Microsoft Azure Not Supported
Mistral AI Supported
OpenAI Supported
Phi-4 Not Supported
Tenstorrent DevCloud Supported
Vapi AI Supported
gpt-oss-20b Supported
gpt-realtime Not Supported
Claim Azure Voice Live API and update features and information
Claim Azure Voice Live API and update features and information
Claim Inworld TTS and update features and information
Claim Inworld TTS and update features and information