OpenAIOpenAI TTS

TTS-1

TTS-1 converts written text into speech and was designed for low-delay delivery. It is deprecated in the current model catalog.

Deprecated API; check access details

Speech synthesis rather than conversation

The model uses the Speech endpoint in the Audio API. Its input is text and its output is audio. Unlike a voice conversation model, its main task is to speak the supplied wording rather than decide what the assistant should say.TTS-1 official model documentation

Review an existing integration

Practical guidance. Keep approved wording separate from voice rendering. For alerts or short instructions, review pronunciation, pauses and the start of playback. A replacement should preserve intelligibility and required wording as well as reduce delay.

Specifications & access

TTS-1 specifications
DetailValue and conditions
StatusDeprecated API; check access details
AccessAPI
Model identifierstts-1
Provider statusDeprecated in the current OpenAI model catalog; confirm remaining account access.TTS-1 official model documentation