TTS-1 (Nov 2023)
TTS-1 (Nov 2023) is the November 2023 snapshot of OpenAI's first-generation text-to-speech model. TTS-1 is optimized for real-time, low-latency speech synthesis rather than maximum audio fidelity — it produces natural-sounding speech quickly, making it appropriate for applications where response speed matters more than studio-quality audio.
The November 2023 snapshot provides a pinned checkpoint for developers who need stable voice characteristics over time. Six distinct voices are available, covering a range of tones and styles. Common uses include voice interfaces, accessibility tools, and applications that need to convert text to spoken audio on demand without noticeable generation delay.
Key Features
Low-latency text-to-speech synthesis optimized for real-time delivery
Six available voices covering different tones and speaking styles
Supports multiple languages and accents
Pinned November 2023 snapshot for stable voice consistency
Simple API: send text, receive MP3 or other audio format
Suitable for streaming audio delivery in conversational interfaces
Ideal Use Cases
Real-time voice interfaces and conversational AI assistants
Accessibility tools converting written content to spoken audio
Podcast or article narration at scale with consistent voice
Notifications and alerts read aloud in applications
Example Prompts for TTS-1 (Nov 2023)
Technical Specifications
| Provider | OpenAI |
| Category | Audio |
| Modality | Text -> Audio |
Frequently Asked Questions
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