Griffin

Griffin

Tavus
Inworld TTS

Inworld TTS

Inworld
+
+

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About

Griffin is Tavus’s first Human Interaction Model, a full-duplex video-to-video system designed to understand and generate face-to-face human interaction in real time. Unlike traditional conversational systems that process speech recognition, language modeling, and speech synthesis sequentially, Griffin continuously perceives audio and video, decides when and how to respond, and generates expressive speech and video at the same time. It pays attention not only to words, but also to tone, gaze, facial expression, gestures, pauses, interruptions, and the surrounding visual context. The model can backchannel, yield or take the conversational turn, react to interruptions, remain engaged during silence, and adjust its emotional tone and nonverbal behavior as the interaction changes. Griffin generates the full visual scene from a reference image, including the face, body, hands, chair movement, shadows, and background, rather than animating only a talking head.

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, AI researchers, and product teams seeking to build real-time conversational systems that can perceive and respond to human speech, expressions, gestures, timing, and visual context

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

$22 per month
Free Version 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

Tavus
Founded: 2020
United States
www.tavus.io/griffin

Company Information

Inworld
Founded: 2021
United States
inworld.ai/tts

Alternatives

Alternatives

WorldClaw

WorldClaw

Tencent
Voxtral

Voxtral

Mistral AI
Qwen3-TTS

Qwen3-TTS

Alibaba
Voxtral TTS

Voxtral TTS

Mistral AI
Chirp 3

Chirp 3

Google

Categories

AI Models Supported

Categories

Integrations

Claude Not Supported
Fireworks AI Not Supported
Google AI Overviews Not Supported
Groq Not Supported
Inworld Not Supported
LiveKit Not Supported
Mistral AI Not Supported
OpenAI Not Supported
Tavus Supported
Tenstorrent DevCloud Not Supported
Vapi AI Not Supported
gpt-oss-20b Not Supported

Integrations

Claude Supported
Fireworks AI Supported
Google AI Overviews Supported
Groq Supported
Inworld Supported
LiveKit Supported
Mistral AI Supported
OpenAI Supported
Tavus Not Supported
Tenstorrent DevCloud Supported
Vapi AI Supported
gpt-oss-20b Supported
Claim Griffin and update features and information
Claim Griffin and update features and information
Claim Inworld TTS and update features and information
Claim Inworld TTS and update features and information