Average Ratings 0 Ratings
Average Ratings 0 Ratings
Description
GPT-Realtime-2.1 is an OpenAI realtime model designed for advanced voice-agent and speech-to-speech AI applications. It improves on GPT-Realtime-2 with stronger alphanumeric recognition, better silence and noise handling, and more natural interruption behavior. The model supports text, audio, and image inputs, while producing text and audio outputs for interactive realtime experiences. Developers can use GPT-Realtime-2.1 across endpoints such as Chat Completions, Responses, Realtime, realtime translation, realtime transcription sessions, and related OpenAI API workflows. The model supports function calling, configurable reasoning effort, instruction following, and reasoning token support for complex voice-agent tasks. Its 128,000-token context window and 32,000-token maximum output make it suitable for longer conversations and more detailed realtime workflows. GPT-Realtime-2.1 does not support video, structured outputs, fine-tuning, or predicted outputs according to OpenAI’s current documentation. Pricing starts at $4 per 1 million text input tokens and $24 per 1 million text output tokens, with separate pricing for audio and image tokens. By combining realtime audio interaction, reasoning, tool use, and multimodal input, GPT-Realtime-2.1 helps developers build responsive AI agents for support, sales, operations, translation, transcription, and interactive voice applications.
Description
Voxtral Mini TTS 3.0 is a text-to-speech solution developed by Mistral AI, designed specifically for developers looking to create voice-enabled applications and services. This model excels in producing speech from text in both batch and real-time scenarios, offering features such as preset or custom voices, emotion modulation, pace adjustments, and personalized pronunciation options. Furthermore, it is capable of generating multilingual speech and adapting to various dialects, making it ideal for applications like conversational audio, localized content delivery, spoken interactions, and voice agent functionalities. Through Mistral's API, developers can easily access its voice-cloning and speech generation features. Additionally, Voxtral Mini TTS 3.0 is integrated into Mistral's broader Voxtral 3 voice-agent framework, which encompasses speech recognition, reasoning, tool utilization, as well as speech generation; notably, the entire Voxtral 3 system can be deployed on the customers' own infrastructure, offering flexibility and control for developers. Ultimately, this model represents a significant advancement in voice synthesis technology, empowering developers to create more dynamic and engaging user experiences.
API Access
Has API
Yes
API Access
Has API
Yes
Pricing Details
$0.40 per cached input
Free Trial
Yes
Free Version
No
Pricing Details
$13/1M chars
Speech generation costs $13 per 1 million characters.
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)
No
In Person
No
Vendor Details
Company Name
OpenAI
Founded
2015
Country
United States
Website
developers.openai.com/api/docs/models/gpt-realtime-2.1
Vendor Details
Company Name
Mistral AI
Founded
2023
Country
France
Website
docs.mistral.ai/models/voxtral-mini-tts-3-0
Product Features
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