Detailed documentation is available about functionality supported by speech recognition endpoints here and languages here.
2025-09-24
Language Model
Updated English (en) Premier language model is now available for dictation (/transcribe), ambient (/stream), and transcription (/transcripts) use cases. Over 170,000 medical terms were included in the training and validation data sets.
2025-09-24
Language Model
Norwegian (no) language updated from Base to Enhanced. It is now available for use in dictation (/transcribe), ambient (/stream), and transcription (/transcripts) use cases.
2025-09-24
API
Update to both streaming and asynchronous audio file processing so that transcoding is supported. Previously audio files were required to conform to to 16-bit, 16kHz formatting but now any precision and sample rate should be accepted so long as the right audio file is used. Please see more details here.
2025-09-24
API
Definition of the parameter modelName is no longer required in /transcripts API requests. The latest and greatest model available per language will be applied automatically. If the argument is included in the request, then it will be ignored. If the configuration is otherwise valid, then the request will process as expected. See full specification here.
2025-09-24
API
The preview (interim) results feature of the transcribe API is not performing as expected. As a result, it is being disabled for most languages to prevent issues with speech lag, speech recognition accuracy, or web socket connectivity. Please reach out to us directly if you have questions or concerns about this dictation feature.
2025-08-21
Language Model
Arabic (language code ar) is now available for ambient documentation workflow - Capture conversations spoken in Arabic via the /stream API.
2025-08-06
API
New dictation functionality available: Formatting. Take control over how dates, time, units, and numbers should be transcribed in the streaming speech to text output. See detailed API specification details here and documentation of all available formatting options here.
2025-07-28
Language Model
Updated German (de) Premier language model is now available for dictation (/transcribe), ambient (/stream), and transcription (/transcripts) use cases. Over 130,000 medical terms were included in the training and validation data sets.
2025-07-18
Language Model
Hungarian (hu) Enhanced language model is now available for dictation (/transcribe).
2025-07-04
Language Model
Swedish (sv) Enhanced language model is now available for dictation (/transcribe).
2025-06-25
Language Model
Updated Norwegian (no) and Swedish (sv) Base language models are now available for ambient documentation (/stream) and transcription (/transcripts) workflows.
2025-05-30
Language Model
Danish (da), German (de), and French (fr) Enhanced language models now available for dictation (/transcribe) workflows.
2025-03-28
Language Model
Swiss German (de-CH) Enhanced language model now available for ambient documentation (/stream) workflows.
2025-03-11
Language Model
French (fr) Enhanced language model now available for ambient documentation (/stream) workflows.
2025-03-08
API
Introducing a new tier system for defining functionality and performance of ASR language models. Read more about it here.
2025-02-25
Language Model
Updated German (de) and Swiss German (de-CH) language models available.
2025-02-11
Language Model
Updated Danish (da) and Swedish (sv) language models available.
2025-01-28
APILanguage Model
Announcing the launch of Corti AI Platform. Read more about it here.The following languages are supported by Corti ASR: English (en for US English, and en-GB for UK English), Danish (da), German (de), Swiss German (de-CH), French (fr), Swedish (sv), Spanish (es), Norwegian (nl), Dutch (no), Italian (it), and Portuguese (pt)