tts-1-hd
OpenAI · Mid · Text to speech
OpenAI's higher-quality text-to-speech model.
Pricing
$30.00 /1M chars
Billed per character of input text, printed as $30.00 per 1M characters.
Source: https://developers.openai.com/api/docs/models/tts-1-hd, as of Jul 11, 2026
Flagship prices over time
Every provider's most-powerful model, priced at launch, charted on one log axis.