tts-1
CHEAP · cheapest third for this operationOpenAI tts-1 costs $0.0135 for one minute of speech. That is the cheapest third of the 8 entries we price on the same operation.
tts-1 · the arithmetic
the unit$0.000015 per character · Pay-as-you-go API, no plan to buy: 'tts-1: $15.00 / 1M characters'.
the meterBilled per character of input text.
the sumOpenAI publishes no characters-per-minute equivalence for tts-1, so we apply our own declared conversion: 1 minute of speech = 900 characters. 900 x $0.000015 = $0.0135 per minute.
the verdictCHEAP · cheapest third for this operation
the catchtts-1-hd is $30.00 / 1M characters = $0.027 per minute by the same arithmetic. The conversational audio models (gpt-audio-1.5, gpt-realtime-2.1) are billed per audio token instead and are not comparable on this line.
read on 14 sep 2026 · pricing page ↗ · documentation ↗
Is tts-1 worth the credits?
nobody has voted yet. be the first.
one vote per person per day. click your side again to take it back.
How much does tts-1 cost on OpenAI?
$0.0135 for 1 min of speech, read from OpenAI's own pages on 14 sep 2026. The meter: Billed per character of input text..
Where does this number come from?
OpenAI publishes no characters-per-minute equivalence for tts-1, so we apply our own declared conversion: 1 minute of speech = 900 characters. 900 x $0.000015 = $0.0135 per minute.
What counts as one operation here?
1 min of speech. Every entry in the same operation is priced on that same unit, which is what makes the comparison mean anything.