Average Ratings 0 Ratings
Average Ratings 0 Ratings
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
NovaSynth serves as an online platform designed for the evaluation of voice and chat AI agents. By establishing a connection through methods such as phone calls, LiveKit, or HTTP Chat, developers and QA teams can create distinct synthetic caller personas and outline various conversational scenarios. The platform allows for both individual and batch tests that can simulate interruptions, background noise, accents, and other unusual conditions. Additionally, NovaSynth captures recordings of sessions and traces, providing transcripts and evaluation results that teams can analyze to pinpoint failures and compare outcomes following any modifications to the agent. It facilitates thorough evaluation and regression testing both prior to and following deployment. The service operates on a credit-based system: users on the free plan receive 2,500 credits monthly, while the Pro version begins at $69 per month and includes 10,000 credits. Voice calls consume 100 credits per minute, text interactions utilize 12 credits each, and evaluations may require extra credits. To conduct testing, teams must set up an account and ensure they have a properly configured and accessible agent connection. Furthermore, this structured approach not only enhances the efficiency of testing but also aids in refining AI performance over time.
API Access
Has API
Yes
API Access
Has API
Yes
Integrations
Gemini
Yes
Gemini 3.1 Flash-Lite
Yes
Gemini 3.1 Pro
Yes
Gemini Enterprise
Yes
Gemini Enterprise Agent Platform
Yes
Gemini Live API
Yes
Gemini Notebook
Yes
Google AI Studio
Yes
Google Vids
Yes
LiveKit
No
Integrations
Gemini
No
Gemini 3.1 Flash-Lite
No
Gemini 3.1 Pro
No
Gemini Enterprise
No
Gemini Enterprise Agent Platform
No
Gemini Live API
No
Gemini Notebook
No
Google AI Studio
No
Google Vids
No
LiveKit
Yes
Pricing Details
No price information available.
Free Trial
No
Free Version
No
Pricing Details
$69/month
The free plan includes 2,500 shared credits per month. Pro costs $69/month and includes 10,000 credits per month. Voice calls use 100 credits per minute, and text conversations use 12 credits each. Some evaluation checks consume additional credits. One-time credit packs are available and do not expire.
Free Trial
No
Free Version
Yes
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
Yes
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
Founded
1998
Country
United States
Website
google.com
Vendor Details
Company Name
Noveum
Founded
2023
Country
United States
Website
noveum.ai/en/novasynth
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
No Alternatives