Speech-to-Text is priced based on the amount of audio successfully processed by the service each month, measured in increments of one second. If the API returns a response, the audio sent in the request was successfully processed. This includes an empty response, which indicates that the API processed the audio but could not transcribe it. Requests that result in an server error do not count as successfully processed and therefore don't incur any cost.
You can view your current billing status, including usage and your current bill, in the Google Cloud console. For more details about managing your account, see the Cloud billing documentation or billing and payments support.
The prices in the table below apply to minutes of audio processed per month for the Speech-to-Text V1 API.
|0-60 Minutes/Month||Over 60 Minutes/Month|
|Speech Recognition (without data logging - default)||Standard¹||Free||$0.024 / minute **|
|Medical²||Free||$0.078 / minute **|
|Speech Recognition (with data logging opt-in)||Standard¹||Free||$0.016 / minute **|
The prices in the table below apply to minutes of audio processed per month for the Speech-to-Text V2 API.
|0-500,000 minutes / month||500,000-1,000,000 minutes / month||1,000,000-2,000,000 minutes / month||2,000,000+ minutes / month|
|Speech recognition (without data logging - default)||Standard¹||$0.016 / minute **||$0.010 / minute **||$0.008 / minute **||$0.004 / minute **|
|Medical²||$0.078 / minute **||$0.078 / minute **||$0.078 / minute **||$0.078 / minute **|
|Speech recognition (with data logging opt-in)||Standard¹||$0.012 / minute **||$0.0075 / minute **||$0.006 / minute **||$0.003 / minute **|
|Dynamic batch speech recognition||Standard¹||$0.003 / minute **||$0.003 / minute **||$0.003 / minute **||$0.003 / minute **|
|Dynamic batch speech recognition (with data logging opt-in)||Standard¹||$0.00225 / minute **||$0.00225 / minute **||$0.00225 / minute **||$0.00225 / minute **|
Standard¹ models include:
chirp (Speech-to-Text V2 only).
Medical² models include:
** Each request is rounded up to the nearest increment of 1 seconds.
Speech-to-Text pricing is determined by the following factors:
- Whether you have opted in to data logging.
- The number of channels in the audio being recognized.
- The length and amount of audio you send.
- The recognition model you are using.
- The batch method you are using.
- The API version you are using.
By opting in to data logging, you can allow Google to record audio data sent to Speech-to-Text. This data helps Google improve the machine learning models used for speech transcription. Customers who opt in to data logging benefit from lower Speech-to-Text pricing.
Each audio channel is billed separately. If you send requests with multiple channels, you will be billed according to the sum total length of audio processed from all channels. This time accounting is different from how monthly usage limits are tracked. Usage limits don't take multiple channels into account and are determined only by the length of the audio file. For example, if you send a request with 30 seconds of audio and 4 channels, you will be billed for 120 seconds but only 30 seconds will count against your monthly quota. See the quotas & limits page for more details.
The Speech-to-Text V2 API has an option to use dynamic batch. Dynamic batch processes audio at a lower level of urgency. If you enable dynamic batch, you will be billed at a discounted rate.
For customers with very large workloads, additional volume discounts may be available. Please contact sales to learn more.
Google Cloud Platform costs
If you store audio files to be recognized in Google Cloud Storage, or use other Google Cloud Platform resources in tandem with Speech-to-Text, such as Google App Engine instances, then you will also be billed for the use of those services. See the Google Cloud Platform pricing calculator to determine other costs based on current rates.
- Read the Speech-to-Text documentation.
- Get started with Speech-to-Text.
- Try the Pricing calculator.
- Learn about Speech-to-Text solutions and use cases.