Quotas and limits

    Yandex SpeechKit has the following limits:

    • Quotas are organizational restrictions that can be changed by technical support on request.
    • Limits are technical restrictions due to the Yandex.Cloud architecture specifics. The limits cannot be changed.

    You can view your current account quotas in the management console.

    Quotas

    Type of limit Value
    Short audio recognition
    Requests per second 20
    Streaming mode of short audio recognition
    Requests per second 40
    Long audio recognition
    Recognition requests per hour 500
    Operation status check requests per hour 2500
    Billable hours of audio per day 10,000
    Speech synthesis
    Requests per second 40

    Limits

    Type of limit Value
    Short audio recognition
    Maximum file size 1 MB
    Maximum duration of audio 30 seconds
    Maximum number of audio channels 1
    Streaming mode of short audio recognition
    Maximum duration of transmitted audio for the entire session 5 minutes
    Maximum size of transmitted audio data 10 MB
    Maximum number of audio channels 1
    Long audio recognition
    Maximum file size 1 GB
    Period for storing recognition results on the server 3 days