Tier

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).

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

For self-serve customers, Deepgram provides Nova, Enhanced, and Base tiers along with each tier's model options. To learn more about pricing, see Deepgram Pricing & Plans.

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

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

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

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

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

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

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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.

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.

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Be sure to replace the placeholder OPTION with your chosen tier and YOUR_DEEPGRAM_API_KEY with your Deepgram API Key. You can create an API Key in the Deepgram Console.

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