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Overview Models Agents Tools Audio & voice Production API reference

Speech

Turn audio into text or text into audio.

Create speech
POST
/audio/speech
Models
SpeechModel = "tts-1" or "tts-1-hd" or "gpt-4o-mini-tts" or "gpt-4o-mini-tts-2025-12-15"
One of the following:
"tts-1"

Deprecated. Announced shutdown date: 2027-01-06. See https://developers.openai.com/api/docs/deprecations for details and recommended replacements.

"tts-1-hd"

Deprecated. Announced shutdown date: 2027-01-06. See https://developers.openai.com/api/docs/deprecations for details and recommended replacements.

"gpt-4o-mini-tts"

Deprecated. Announced shutdown date: 2027-01-06. See https://developers.openai.com/api/docs/deprecations for details and recommended replacements.

"gpt-4o-mini-tts-2025-12-15"

Deprecated. Announced shutdown date: 2027-01-06. See https://developers.openai.com/api/docs/deprecations for details and recommended replacements.