Vendor / paper demo
alloy · OpenAI API docs voice sample, Alloy.
OpenAI API documentation sample, Alloy voice. Published at cdn.openai.com/API/docs/audio/alloy.wav. Not the shared bench script.
OpenAI · 2023–25 · tts-1 / gpt-4o-mini-tts
OpenAI TTS
The speech endpoint most teams already have credentials for. gpt-4o-mini-tts (2025) takes natural-language delivery instructions instead of SSML. The clip here is OpenAI’s published Alloy documentation sample — a different script from our bench line.
Known for
Steerability through instructions; one-vendor convenience.
Vendor / paper demo
nova · OpenAI API docs voice sample, Nova.
OpenAI API documentation sample, Nova voice. Published at cdn.openai.com/API/docs/audio/nova.wav.
- Approach
- AR seq2seq
- Year / era
- 2023
- License class
- commercial
- Cloning
- No
- Streaming
- No
- Emotion controls
- Yes
- Languages (tags)
- en · multilingual
- Official
- Source