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Tier (Deprecated)

Tier allows you to associate your API requests with a specific tier.

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❗️

Deprecation warning. Please use the model syntax outlined in the Models & Languages Overview.

Deepgram's tier feature allows you to associate your API requests with a specific tier architecture, which indicates the level of model you would like to use in your request.

Tiers & Options

Below is a list of model tiers (tier), each of which has its own list of model options (model).

ℹ️

To learn more about models, see Models. To learn more about pricing, see Deepgram Pricing & Plans.

Nova 2

https://api.deepgram.com/v1/listen?tier=nova&model=2-general

Nova-2 expands on Nova-1's advancements with speech-specific optimizations to the underlying Transformer architecture, advanced data curation techniques, and a multi-stage training methodology. These changes yield reduced word error rate (WER) and enhancements to entity recognition (i.e. proper nouns, alphanumerics, etc.), punctuation, and capitalization. Nova-2 has the following options:

  • general: Optimized for everyday audio processing.
  • meeting: Optimized for conference room settings, which include multiple speakers with a single microphone.
  • phonecall: Optimized for low-bandwidth audio phone calls.
  • voicemail: Optimized for low-bandwidth audio clips with a single speaker. Derived from the phonecall model.
  • finance: Optimized for multiple speakers with varying audio quality, such as might be found on a typical earnings call. Vocabulary is heavily finance oriented.
  • conversationalai: Optimized for use cases in which a human is talking to an automated bot, such as IVR, a voice assistant, or an automated kiosk.
  • video: Optimized for audio sourced from videos.
  • medical: Optimized for audio with medical oriented vocabulary.
  • drivethru: Optimized for audio sources from drivethrus.
  • automotive: Optimized for audio with automative oriented vocabulary.

Nova

Nova model tiers are our newest and most powerful speech-to-text models on the market today. Deepgram's Nova models have the following options:

  • general: Optimized for everyday audio processing. Likely to be more accurate than any region-specific Base model for the language for which it is enabled. If you aren't sure which model to select, start here.

  • phonecall: Optimized for low-bandwidth audio phone calls.

The Nova tier and its model options can be called with the following syntax:

https://api.deepgram.com/v1/listen?tier=nova&model=general

https://api.deepgram.com/v1/listen?tier=nova&model=OPTION

If the model parameter is unset, it will default to general. Read the Nova Quickstart to learn more about getting started with Nova.

Enhanced

Enhanced model tiers are still some of our most powerful ASR models; they generally have higher accuracy and better word recognition than our base models, and they handle uncommon words significantly better. Deepgram's Enhanced models have the following options:

  • general: Optimized for everyday audio processing. Likely to be more accurate than any region-specific Base model for the language for which it is enabled. If you aren't sure which model to select, start here.

  • meeting beta: Optimized for conference room settings, which include multiple speakers with a single microphone.

  • phonecall: Optimized for low-bandwidth audio phone calls.

  • finance beta: Optimized for multiple speakers with varying audio quality, such as might be found on a typical earnings call. Vocabulary is heavily finance oriented.

The Enhanced tier and its model options can be called with the following syntax:

https://api.deepgram.com/v1/listen?tier=enhanced&model=general

https://api.deepgram.com/v1/listen?tier=enhanced&model=OPTION

If the model parameter is unset, it will default to general.

Base

Base model tiers are built on our signature end-to-end deep learning speech model architecture. They offer a solid combination of accuracy and cost effectiveness in some cases. Deepgram's Base models have the following options:

  • general: (Default) Optimized for everyday audio processing.
  • meeting: Optimized for conference room settings, which include multiple speakers with a single microphone.
  • phonecall: Optimized for low-bandwidth audio phone calls.
  • voicemail: Optimized for low-bandwidth audio clips with a single speaker. Derived from the phonecall model.
  • finance: Optimized for multiple speakers with varying audio quality, such as might be found on a typical earnings call. Vocabulary is heavily finance oriented.
  • conversationalai: Optimized to allow artificial intelligence technologies, such as chatbots, to interact with people in a human-like way.
  • video: Optimized for audio sourced from videos.

The Base tier and its model options can be called with the following syntax:

https://api.deepgram.com/v1/listen?tier=base&model=general

https://api.deepgram.com/v1/listen?tier=base&model=OPTION

If the model parameter is unset, it will default to general.

⚠️

You should only submit model options that are available for a particular tier; submitting a model option that is not available for a tier will result in a parse error. All tiers should have a general model available.

Try it out

To transcribe audio from a file on your computer using a particular tier, run the following curl command in a terminal or your favorite API client.

curl \
  --request POST \
  --header 'Authorization: Token YOUR_DEEPGRAM_API_KEY' \
  --data-binary @youraudio.wav \
  --url 'https://api.deepgram.com/v1/listen?tier=OPTION'

🚧

Replace YOUR_DEEPGRAM_API_KEY with your Deepgram API Key.

Updated 8 months ago