Models & Languages Overview

An overview of Deepgram’s speech-to-text models and supported languages.

Pre-recorded Streaming

Models

General ModelsDescription & Use
nova-3Our highest performing model. Recommended for most use cases, especially audio with multiple languages, background noise, crosstalk and far field audio.
nova-2Recommended for use with non-English transcription.

Example

To request any Deepgram Model, change MODEL_OPTION to the Model you want to use.

cURL
1curl \  --request POST \
2--header 'Authorization: Token YOUR_DEEPGRAM_API_KEY' \
3--header 'Content-Type: audio/wav' \
4--data-binary @youraudio.wav \
5--url 'https://api.deepgram.com/v1/listen?model=MODEL_OPTION'

Replace YOUR_DEEPGRAM_API_KEY with your Deepgram API Key.

Nova-3

Nova-3 represents a significant leap forward in speech AI technology, featuring substantial improvements in accuracy and real-world application capabilities. The model delivers industry-leading performance with a 54.2% reduction in word error rate (WER) for streaming and 47.4% for batch processing compared to competitors.

Nova-3 introduces groundbreaking features including real-time multilingual conversation transcription, enhanced comprehension of domain-specific terminology, and optional personal information redaction. Notably, it’s the first voice AI model to offer self-serve customization, enabling instant vocabulary adaptation without model retraining. In multilingual testing, Nova-3 demonstrated superior performance across all seven tested languages, with particularly strong results showing up to 8:1 preference ratios in certain languages.

Model OptionLanguage
nova-3 or nova-3-generalEnglish: en, en-USMultilingual coming soon

Nova-2

Recommended for use with non-English transcription.

Model OptionLanguage
nova-2 or nova-2-generalMultilingual (Spanish + English): multi ,
Bulgarian: bg,
Catalan: ca,
Chinese (Mandarin, Simplified):zh, zh-CN,zh-Hans,
Chinese (Mandarin, Traditional):zh-TW,zh-Hant,
Chinese (Cantonese, Traditional): zh-HK,
Czech: cs,
Danish: da, da-DK,
Dutch: nl,
English: en, en-US, en-AU, en-GB, en-NZ, en-IN,
Estonian: et,
Finnish: fi,
Flemish: nl-BE,
French: fr, fr-CA,
German: de,
German (Switzerland): de-CH,
Greek: el,
Hindi: hi,
Hungarian: hu,
Indonesian: id,
Italian: it,
Japanese: ja,
Korean: ko, ko-KR,
Latvian: lv,
Lithuanian: lt,
Malay: ms,
Norwegian: no,
Polish: pl,
Portuguese: pt, pt-BR, pt-PT,
Romanian: ro,
Russian: ru,
Slovak: sk,
Spanish: es, es-419,
Swedish: sv, sv-SE,
Thai: th, th-TH,
Turkish: tr,
Ukrainian: uk,
Vietnamese: vi
nova-2-meetingEnglish: en, en-US
nova-2-phonecallEnglish: en, en-US
nova-2-financeEnglish: en, en-US
nova-2-conversationalaiEnglish: en, en-US
nova-2-voicemailEnglish: en, en-US
nova-2-videoEnglish: en, en-US
nova-2-medicalEnglish: en, en-US
nova-2-drivethruEnglish: en, en-US
nova-2-automotiveEnglish: en, en-US
nova-2-atcEnglish: en, en-US
nova-2-<CUSTOM>All available

Legacy Models

Nova

Nova 1 is the predecessor to Nova-2.

Model OptionLanguage
nova or nova-generalEnglish: en, en-US, en-AU, en-GB, en-NZ, en-IN Spanish: es, es-419 Hindi:hi-Latn
nova-phonecallEnglish: en, en-US
nova-medicalEnglish: en, en-US
nova-<CUSTOM>All available

Enhanced

Recommended for lower word error rates than Base, high accuracy timestamps, and use cases that require keyword boosting.

Model OptionLanguage
enhanced or enhanced-generalDanish: da Dutch: nl English: en, en-US Flemish: nl French: fr German: de Hindi: hi Italian: it Japanese: ja Korean: ko Norwegian: no Polish: pl Portuguese: pt, pt-BR, pt-PT Spanish: es, es-419, es-LATAM Swedish: sv Tamasheq: taq Tamil: ta
enhanced-meetingEnglish: en, en-US
enhanced-phonecallEnglish: en, en-US
enhanced-financeEnglish: en, en-US
enhanced-<CUSTOM>All available

Base

Recommended for large transcription volumes and high accuracy timestamps.

ModelLanguage
base or base-generalChinese: zh, zh-CN, zh-TW Danish: da Dutch: nl English: en, en-US Flemish: nl French: fr, fr-CA German: de Hindi: hi, hi-Latn Indonesian: id Italian: it Japanese: ja Korean: ko Norwegian: no Polish: pl Portuguese: pt, pt-BR, pt-PT Russian: ru Spanish: es, es-419, es-LATAM Swedish: sv Tamasheq: taq Turkish: tr Ukrainian: uk
base-meetingEnglish: en, en-US
base-phonecallEnglish: en, en-US
base-financeEnglish: en, en-US
base-conversationalaiEnglish: en, en-US
base-voicemailEnglish: en, en-US
base-videoEnglish: en, en-US
base-<CUSTOM>All available

Deepgram Whisper Cloud

Whisper models are less scalable than all other Deepgram models due to their inherent model architecture. All non-Whisper models will return results faster and scale to higher load.

Deepgram Whisper Cloud is a fully managed API that gives you access to Deepgram’s version of OpenAI’s Whisper model. Read our guide Deepgram Whisper Cloud for a deeper dive into this offering.

  • Additional rate limits apply to Whisper due to poor scalability.
  • Requests to Whisper are limited to 15 concurrent requests with a paid plan and 5 concurrent requests with the pay-as-you-go plan.
  • Long audio files are supported up to a maximum of 20 minutes of processing time (the maximum length of the audio depends on the size of the Whisper model).

Deepgram’s Whisper Cloud models can be called with the following syntax:

Text
https://api.deepgram.com/v1/listen?model=whisper
Text
https://api.deepgram.com/v1/listen?model=whisper-SIZE
ModelLanguage
whisper-tinySee available
whisper-baseSee available
whisper-smallSee available
whisper-medium OR whisperSee available
whisper-largeSee available
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