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Average Ratings 0 Ratings

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ease
features
design
support

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Description

Gemini 3.1 Flash TTS represents Google's newest advancement in text-to-speech technology, aimed at providing developers and businesses with expressive, customizable, and scalable AI-generated speech solutions. Accessible through platforms like Google AI Studio and Gemini Enterprise Agent Platform, this model emphasizes user control over audio generation, enabling the manipulation of delivery through natural language prompts and a comprehensive array of over 200 audio tags that can adjust pacing, tone, emotion, and style. It is capable of supporting more than 70 languages and their regional dialects, alongside a selection of 30 prebuilt voices, which allows for the creation of speech that ranges from polished narrations to engaging conversational or artistic performances. Developers have the ability to incorporate specific instructions directly into their text inputs, facilitating the guidance of vocal expression while integrating pacing, emotion, and pauses within a structured prompting system that yields nuanced and high-quality audio. Furthermore, Gemini 3.1 Flash TTS is specifically designed for practical applications, making it suitable for use in accessibility tools, gaming audio, and a variety of other innovative projects. This flexibility ensures that users can adapt the technology to meet diverse needs across multiple industries effectively.

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 Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Claude No 
Fireworks AI No 
Gemini Yes 
Gemini 3.1 Flash-Lite Yes 
Gemini 3.1 Pro Yes 
Gemini 3.5 Pro Yes 
Gemini Enterprise Agent Platform Yes 
Gemini Live API Yes 
Google AI Overviews No 
Google AI Studio Yes 
Google Vids Yes 
Groq No 
Inworld No 
LiveKit No 
Mistral AI No 
OpenAI No 
Tenstorrent DevCloud No 
Vapi AI No 
gpt-oss-20b No 

Integrations

Claude Yes 
Fireworks AI Yes 
Gemini No 
Gemini 3.1 Flash-Lite No 
Gemini 3.1 Pro No 
Gemini 3.5 Pro No 
Gemini Enterprise Agent Platform No 
Gemini Live API No 
Google AI Overviews Yes 
Google AI Studio No 
Google Vids No 
Groq Yes 
Inworld Yes 
LiveKit Yes 
Mistral AI Yes 
OpenAI Yes 
Tenstorrent DevCloud Yes 
Vapi AI Yes 
gpt-oss-20b Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

$0.005 per minute
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 Yes 
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) Yes 
In Person No 

Vendor Details

Company Name

Google

Founded

1998

Country

United States

Website

blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-1-flash-tts/

Vendor Details

Company Name

Inworld

Founded

2021

Country

United States

Website

inworld.ai/tts

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

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 

Alternatives

Alternatives

Qwen3-TTS Reviews

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