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What is Gemini 3.1 Flash TTS?

Gemini 3.1 Flash TTS showcases the latest innovations from Google in text-to-speech capabilities, focusing on delivering expressive, customizable, and scalable AI-driven speech solutions for developers and businesses. This technology is readily available through platforms such as Google AI Studio and Gemini Enterprise Agent Platform, placing a strong emphasis on user empowerment in audio creation, and allowing for the adjustment of delivery through natural language commands and an extensive set of over 200 audio tags that can manipulate aspects like pacing, tone, emotion, and style. It supports more than 70 languages, including various regional dialects, and offers a choice of 30 prebuilt voices, which enables the production of speech that can range from refined narrations to captivating conversational or artistic presentations. Developers can seamlessly embed specific guidance within their text inputs, which helps direct vocal expression while incorporating elements such as pacing, emotion, and pauses through a structured prompting mechanism that generates nuanced and high-quality audio output. This advanced functionality makes Gemini 3.1 Flash TTS particularly suited for practical implementations, encompassing applications in accessibility tools, gaming audio, and a wide array of other creative projects. Additionally, this versatility empowers users to tailor the technology effectively to satisfy the varying demands found across different sectors and industries.

What is GPT-Realtime-1.5?

GPT-Realtime-1.5 is OpenAI’s flagship real-time voice model, designed to deliver high-quality audio interactions for applications like voice assistants, customer support systems, and conversational AI platforms. It supports multimodal inputs, including text, audio, and images, and can generate both text and audio outputs for seamless communication. The model is optimized for fast response times, making it ideal for live, interactive environments where latency is critical. With a 32,000-token context window, it can handle extended conversations and maintain context across multiple turns. It is capable of powering complex workflows by integrating with external tools through function calling. The model is accessible عبر multiple API endpoints, including realtime, chat completions, and responses, providing flexibility for developers. Pricing is based on token usage, with distinct rates for text, audio, and image inputs and outputs. It supports scalable deployment with tiered rate limits that increase based on usage levels. While it does not support features like fine-tuning or structured outputs, it remains highly effective for real-time applications. Its ability to process and respond to audio input makes it particularly valuable for voice-driven interfaces. Developers can use it to build interactive systems that respond instantly to user input. The model’s performance and speed make it suitable for high-demand environments such as call centers and live support systems. Overall, gpt-realtime-1.5 provides a robust foundation for building responsive, scalable, and intelligent voice applications.

Media

Media

Integrations Supported

Gemini
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini Enterprise Agent Platform
Gemini Live API
Google AI Studio
Google Vids
OpenAI
gpt-realtime

Integrations Supported

Gemini
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini Enterprise Agent Platform
Gemini Live API
Google AI Studio
Google Vids
OpenAI
gpt-realtime

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

$4.00 per 1M tokens (input)
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/innovation-and-ai/models-and-research/gemini-models/gemini-3-1-flash-tts/

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

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

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