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features
design
support

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Description

Hume AI's EVI 3 represents a cutting-edge advancement in speech-language technology, seamlessly streaming user speech to create natural and expressive verbal responses. It achieves conversational latency while maintaining the same level of speech quality as our text-to-speech model, Octave, and simultaneously exhibits the intelligence comparable to leading LLMs operating at similar speeds. In addition, it collaborates with reasoning models and web search systems, allowing it to “think fast and slow,” thereby aligning its cognitive capabilities with those of the most sophisticated AI systems available. Unlike traditional models constrained to a limited set of voices, EVI 3 has the ability to instantly generate a vast array of new voices and personalities, engaging users with over 100,000 custom voices already available on our text-to-speech platform, each accompanied by a distinct inferred personality. Regardless of the chosen voice, EVI 3 can convey a diverse spectrum of emotions and styles, either implicitly or explicitly upon request, enhancing user interaction. This versatility makes EVI 3 an invaluable tool for creating personalized and dynamic conversational experiences.

Description

The Gemini 2.5 Flash TTS model represents the latest advancement in Google’s Gemini 2.5 series, focusing on rapid, low-latency speech synthesis that produces expressive and controllable audio output. This model introduces notable improvements in tonal variety and expressiveness, enabling developers to create speech that aligns more closely with style prompts, whether for storytelling, character portrayals, or other contexts, thus achieving a more authentic emotional depth. With its precision pacing feature, it can adjust the speed of speech based on the context, allowing for quicker delivery in certain sections while also slowing down for emphasis when required, following specific instructions. Additionally, it accommodates multi-speaker dialogues with consistent character voices, making it suitable for various scenarios such as podcasts, interviews, and conversational agents, while also enhancing multilingual capabilities to maintain each speaker's distinct tone and style across different languages. Optimized for reduced latency, Gemini 2.5 Flash TTS is particularly well-suited for interactive applications and real-time voice interfaces, ensuring a seamless user experience. This innovative model is set to redefine how developers implement voice technology in their projects.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Gemini
Gemini 2.5 Flash
Gemini 2.5 Pro
Gemini Enterprise Agent Platform
Google AI Studio
Hume AI

Integrations

Gemini
Gemini 2.5 Flash
Gemini 2.5 Pro
Gemini Enterprise Agent Platform
Google AI Studio
Hume AI

Pricing Details

Free
Free Trial
Free Version

Pricing Details

No price information available.
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Hume AI

Founded

2021

Country

United States

Website

www.hume.ai/blog/introducing-evi-3

Vendor Details

Company Name

Google

Founded

1998

Country

United States

Website

blog.google/technology/developers/gemini-2-5-text-to-speech/

Product Features

Product Features

Text to Speech

API
Adjust Speaking Rate / Pitch
Audio Optimization
Custom Lexicons
Different Voice Choices
Multi-Language Support
Synchronize Speech

Alternatives

Azure AI Speech Reviews

Azure AI Speech

Microsoft

Alternatives

Octave TTS Reviews

Octave TTS

Hume AI
CereWave AI Reviews

CereWave AI

CereProc
Voxtral TTS Reviews

Voxtral TTS

Mistral AI
Qwen3-TTS Reviews

Qwen3-TTS

Alibaba