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What is Gemini 2.5 Pro TTS?

Gemini 2.5 Pro TTS showcases Google's advanced text-to-speech technology as part of the Gemini 2.5 lineup, crafted to provide high-quality and expressive speech synthesis for structured audio creation. This model generates realistic voice output, featuring enhanced expressiveness, tone variations, pacing adjustments, and precise pronunciation, enabling developers to dictate style, accent, rhythm, and emotional nuances via text prompts. As a result, it is well-suited for numerous applications such as podcasts, audiobooks, customer service interactions, educational tutorials, and multimedia storytelling that require exceptional audio fidelity. Furthermore, it supports both single and multiple speakers, allowing for diverse voices and interactive conversations within a single audio track while offering speech synthesis in multiple languages without sacrificing stylistic coherence. Unlike quicker options like Flash TTS, the Pro TTS model prioritizes outstanding sound quality, rich expressiveness, and meticulous control over vocal attributes, thereby making it a favored selection among professionals aiming to elevate their audio projects. This commitment to detail not only enhances the listener's experience but also broadens the creative possibilities for audio content creators.

What is Async?

Async is a cutting-edge AI voice platform tailored specifically for developers, utilizing the advanced technology of Podcastle to deliver exceptional text-to-speech and voice cloning services via a high-performance API that is easy to use. This platform offers developers access to high-quality, realistic voices with minimal latency of under 200 milliseconds, while also enabling the creation of personalized voice clones from just a brief three-second audio clip. Async's real-time audio streaming capability means users can hear the output as it is produced, and it comes with a simple usage-based billing model that provides daily real-time analytics and accurate cost management on a per-second basis. Built with scalability in mind, Async is suitable for both solo developers and large-scale enterprises, equipping them with sophisticated voice features backed by the robust infrastructure of Podcastle. Consequently, users are empowered to enhance their creative processes and improve efficiency in their various projects, ultimately leading to a more engaging experience. Moreover, the platform's commitment to innovation ensures that it remains at the forefront of voice technology, continually evolving to meet the needs of its users.

Media

Media

Integrations Supported

Gemini
Gemini 2.5 Flash
Gemini 2.5 Pro
Google AI Studio
JavaScript
Podcastle
Python
Twilio
Vertex AI

Integrations Supported

Gemini
Gemini 2.5 Flash
Gemini 2.5 Pro
Google AI Studio
JavaScript
Podcastle
Python
Twilio
Vertex AI

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

$1 per hour
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Google

Date Founded

1998

Company Location

United States

Company Website

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

Company Facts

Organization Name

Async

Company Location

United States

Company Website

async.ai/

Categories and Features

Text to Speech

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

Categories and Features

Text to Speech

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

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