ModelSpeech & Audio AIvtts-1

TTS-1

by OpenAI · paid · Last verified 2026-03-17

OpenAI's TTS-1 is a text-to-speech model designed for real-time audio generation. It provides six distinct, natural-sounding preset voices and supports low-latency streaming, making it ideal for interactive applications. A higher-quality variant, tts-1-hd, is available for tasks where audio fidelity is prioritized over speed.

https://openai.com ↗

B—Above Average

Adoption: B+Quality: AFreshness: BCitations: BEngagement: F

Specifications

License: Proprietary
Pricing: paid
Capabilities: Text-to-speech generation, Six preset voice options (Alloy, Echo, Fable, Onyx, Nova, Shimmer), Low-latency audio streaming for real-time use, Support for multiple output formats (MP3, Opus, AAC, FLAC), High-quality audio synthesis via the tts-1-hd model, Broad multilingual support for various languages, API-based access for easy integration
Integrations: [object Object], [object Object], [object Object]
Use Cases: [object Object], [object Object], [object Object], [object Object], [object Object]
API Available: Yes
Parameters: Undisclosed
Context Window: 4096 characters
Modalities: text-to-audio
Training Cutoff: N/A
Tags: text-to-speech, voice-synthesis, audio-generation, openai-api, real-time-audio, streaming-audio, multilingual-tts, conversational-ai, accessibility, voice-api
Added: 2026-03-17
Completeness: 0.95%

Index Score

62.7

Adoption

Quality

Freshness

Citations

Engagement

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