The Cloud Speech API is priced monthly based on the amount of audio successfully processed by the service, measured in increments rounded up to 15 seconds. Pricing tiers are based on the total amount of audio processed by the service per month.

Pricing Table

Feature 0-60 minutes 61+ - 1 million minutes
Speech Recognition Free $0.006 / 15 seconds*

This pricing is for applications on personal systems (e.g., phones, tablets, laptops, desktops). Please contact us for approval and pricing to use the Speech API on embedded devices (e.g., cars, TVs, appliances, or speakers).

* Each request is rounded up to the nearest increment of 15 seconds. For example, three separate requests, each containing 7 seconds of audio, would be billed as 45 seconds (3 × 15 seconds) of audio. Fractions of seconds are included when rounding up to the nearest increment of 15 seconds. That is, 15.14 seconds are rounded up and billed as 30 seconds.

Monthly usage is capped at 1 million minutes per month. For usage above 1 million minutes of audio per month, we would like to understand more about your needs. Please submit a Cloud Speech API Quota Request for your project.

Google Cloud Platform Costs

Note that you may be charged for other Google Cloud Platform resources used in your project, such as Google Compute Engine instances, Google Cloud Storage, etc. For full information, consult our Google Cloud Platform Pricing Calculator to determine those separate costs based on current rates.

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Google Cloud Speech API Documentation