OpenAI

OpenAI TTS-1 text-to-speech usage cost

$1.5e-05 per character (published as $0.015 per 1k). tts-1 list price of $15 per 1M characters, shown here as $0.015 per 1,000 characters for volume planning.

Estimate cost

Published unit price
$0.000015
Estimated cost
$0.015

Project monthly volume

Estimated daily cost
Estimated monthly cost

Cost at different volumes

OpenAI TTS-1 text-to-speech as volume grows. Extra rows (25, 50, 250…) sit between the round numbers so a step-up is visible.

Usage volume Estimated cost
1 $0.000015
10 $0.00015
25 $0.000375
50 $0.00075
100 $0.0015
250 $0.00375
500 $0.0075
1,000 $0.015
2,500 $0.0375
5,000 $0.075
10,000 $0.15
25,000 $0.375
50,000 $0.75
100,000 $1.50
250,000 $3.75
500,000 $7.50
1,000,000 $15.00
5,000,000 $75.00
10,000,000 $150.00

At these rates

  • The published rate is $0.000015 per character.
  • One thousand units cost $0.015; 100,000 units cost $1.50 before allowances, tiers, or other billing components.
  • A $100 budget covers about 6,666,666 units at this linear rate.

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The calculator applies the published unit rate in a straight line. Included quotas, tiers, minimums, regional charges, and other billing lines can change the total.

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