TTS-1 HD | Text to speech

TTS-1 HD Overview

TTS-1 HD is a high-quality Text-to-Speech (TTS) model developed by OpenAI. It converts written text into natural, high-fidelity speech suitable for various applications. Designed for both real-time streaming and offline use, TTS-1 HD supports multiple languages and delivers clear, lifelike audio.

Technical Specifications

• Model Type: Deep learning-based TTS system
• Supported Languages: Multilingual support covering major global languages
• Output Audio Quality: High-definition, noise-free speech output tailored for human-like intonation
• Latency: Low latency optimized for streaming and real-time applications
• Platform Compatibility: Available on various platforms including web and app integrations

Performance Benchmarks

• Achieves near-human Mean Opinion Score (MOS) values in voice quality evaluations.
• Demonstrates robust clarity and naturalness in multiple languages.
• Shows low word error rates when integrated with speech recognition feedback loops.
• Efficient runtime suitable for deployment on both cloud and edge devices.

Key Features

• Produces high-fidelity, natural-sounding speech with clear articulation.
• Optimized for both streaming audio in real time and offline batch processing.
• Suitable for interactive platforms such as OpenAI.fm.
• Robust to different text types including blogs, articles, and conversational content.

TTS-1 HD API Pricing

• $0.0315 per 1K characters

Code Sample

API Integration

Accessible via AI/ML API. Documentation: available here.