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features
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support

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Description

Gemini 3.8 Flash TTS is a generative text-to-speech model from Google designed for expressive voice creation, character design, dialogue direction, and multilingual audio production. Instead of limiting users to fixed voice presets, the model can create entirely new vocal identities from natural-language descriptions. Developers and creators can specify attributes such as accent, role, timbre, speaking style, pacing, and other voice characteristics across more than 100 languages and dialects. The model also offers access to more than 2,000 production-ready voices and supports voice replication from a short authorized audio sample. Performance controls allow users to direct individual lines with stage directions, pacing instructions, dialect shifts, emotional cues, and conversational backchanneling. Gemini 3.8 Flash TTS supports long-form generation while maintaining voice consistency, making it suitable for podcasts, audiobooks, localization, and other extended audio projects. Native two-speaker scene support lets users create multi-turn conversations from a single script while preserving distinct voices and natural turn-taking. Google includes consent verification, SynthID watermarking, and C2PA credentials to provide greater transparency and safeguards around generated and replicated voices. Gemini 3.8 Flash TTS can be used through Google AI Studio and the Gemini API and is intended for developers, creators, enterprises, media companies, and teams building expressive speech experiences.

Description

SynthID is an advanced watermarking technology created by Google DeepMind to identify and verify AI-generated or AI-altered content. It works by embedding invisible digital watermarks into images, videos, audio, and text at the moment they are generated. These watermarks are imperceptible to humans and do not impact the quality or usability of the content. SynthID is built to withstand common modifications such as cropping, filtering, and compression, ensuring reliable detection even after editing. The tool is integrated across Google’s generative AI ecosystem, enabling consistent and automatic watermarking. Users can check for these watermarks using platforms like Gemini or through the dedicated SynthID Detector portal. This functionality helps users determine whether content was created or altered using AI. It also supports journalists and media professionals in verifying digital content authenticity. By promoting transparency, SynthID helps address concerns around misinformation and deepfakes. Overall, it strengthens trust in the growing landscape of generative AI technologies.

API Access

Has API Yes 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

Gemini Enterprise Agent Platform Yes 
Gemini 2.5 Flash Image No 
Gemini 3.1 Flash-Lite Yes 
Gemini 3.1 Pro Yes 
Gemini 3.8 Flash TTS No 
Gemini 3.8 Flash-Lite TTS No 
Gemini Enterprise Yes 
Gemini Live API Yes 
Gemini Notebook Yes 
Gemini Omni 1.1 Flash No 
Gemini Omni Flash No 
Gemini Robotics No 
Google AI Studio Yes 
Lyria No 
Lyria 3 Clip No 
Lyria 3 Pro No 
MusicFX No 
SynthID Yes 
VideoFX No 

Integrations

Gemini Enterprise Agent Platform Yes 
Gemini 2.5 Flash Image Yes 
Gemini 3.1 Flash-Lite No 
Gemini 3.1 Pro No 
Gemini 3.8 Flash TTS Yes 
Gemini 3.8 Flash-Lite TTS Yes 
Gemini Enterprise No 
Gemini Live API No 
Gemini Notebook No 
Gemini Omni 1.1 Flash Yes 
Gemini Omni Flash Yes 
Gemini Robotics Yes 
Google AI Studio No 
Lyria Yes 
Lyria 3 Clip Yes 
Lyria 3 Pro Yes 
MusicFX Yes 
SynthID No 
VideoFX Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

No price information available.
Free Trial No 
Free Version 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 

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 No 

Types of Training

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

Types of Training

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

Vendor Details

Company Name

Google

Founded

1998

Country

United States

Website

google.com

Vendor Details

Company Name

Google

Founded

1998

Country

United States

Website

deepmind.google/models/synthid/

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

Alternatives

Alternatives

MusicFX Reviews

MusicFX

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VideoFX Reviews

VideoFX

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