Cognitive Services Pricing - Custom Speech Service PREVIEW

Use intelligence APIs to enable vision, speech, language, and knowledge capabilities

The Custom Speech Service lets you create custom speech recognition models and deploy them to a speech-to-text endpoint that’s tailored to your application. With Custom Speech Service, you can customize the language model of the speech recognizer, so it learns the vocabulary of your application and the speaking style of your users. You can also customize the acoustic model of the speech recognizer to better match the application’s expected environment and user population.

Pricing details

Each pricing tier provides a certain concurrent transcriptions rate. Customers can then choose to import text data for custom language model creation or acoustic data (audio + transcriptions) for custom acoustic model creation.

The below pricing reflects a preview discount.

  Tier 1 Tier 2
Price (per month) $350 $700
Number of concurrent transcriptions 4 12
Acoustic Adaptations
Rate per hour of audio $5 $5
Short Phrase Recognition
0 - 100,000 transcriptions (rate per 1000 transcriptions) $1 $1
100,000+ transcriptions (rate per 1000 transcriptions) $4.5 $4.5
Long Dictation Recognition
0 - 10 hours (rate per hour) $1 $1
10 - 100 hours (rate per hour) $7 $7
100+ hours (rate per hour) $5.5 $5.5

Free Tier

Number of concurrent transcriptions 1
Transcriptions (short phrase or long dictation) 5,000
Acoustic Model Adaptations 3 hours/month
Language Model Adaptations 5

*Please note that free tier customers will have their models undeployed if a prolonged period of inactivity is detected.

Support & SLA

  • Free billing and subscription management support
  • Need tech support for preview services? Use our forums
  • We guarantee that Cognitive Services running in the Standard tier will be available at least 99.9% of the time. No SLA is provided for the Free tier. Read the SLA
  • No SLA during preview period. Learn more

Custom Speech Service



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