STT

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Updated at August 18, 2026

Note

Currently, there are two UIs that support Workflows: Yandex Cloud and Yandex AI Studio. In this case, the following applies:

Workflows created in the Yandex Cloud UI are automatically available in the AI Studio UI.
Workflows created in the AI Studio UI are not available in the Yandex Cloud UI.

Starting September 3, 2026, Workflows will no longer be supported in the Yandex Cloud UI. To create and manage workflows, use the AI Studio UI.

Speech recognition in audio files using Yandex SpeechKit STT.

The base64, url, objectStorage, and disk fields are mutually exclusive: you can use only one of them.

Field name	Type	Required	Default value	Templating supported	Description
`recognizeText`	STT.RecognizeText	Yes	None	None	Speech recognition settings.
`base64`	`string`	None	None	Yes	Base64-encoded audio file.
`url`	`string`	None	None	Yes	Audio file via a public URL.
`objectStorage`	STT.ObjectStorage	None	None	None	Audio file from an Object Storage bucket.
`disk`	STT.Disk	None	None	None	Audio file on Yandex Disk.

STT.RecognizeText

Field name	Type	This is a required field	Default value	Templating supported	Description
`mimeType`	`string`	Yes	None	None	Audio file format. Available formats: `mp3`, `wav`, `ogg`.
`languageCodes`	`string[]`	Yes	None	None	Speech recognition languages. Available languages `auto`: Automatic language detection `ru-RU`: Russian `en-US`: English `de-DE`: German `es-ES`: Spanish `fi-FI`: Finnish `fr-FR`: French `he-IL`: Hebrew `it-IT`: Italian `kk-KZ`: Kazakh `nl-NL`: Dutch `pl-PL`: Polish `pt-PT`: Portuguese `pt-BR`: Brazilian Portuguese `sv-SE`: Swedish `tr-TR`: Turkish `uz-UZ`: Uzbek (Latin script)
`model`	`string`	Yes	None	None	Speech recognition model. Available model: `general` (general recognition model).

Field name	Type	Required	Default value	Templating supported	Description
`bucket`	`string`	Yes	None	None	Name of the Object Storage bucket the audio file is in.
`object`	`string`	Yes	None	Yes	Object name, e.g., `prefix/subprefix/data.mp3`.

Field name	Type	Required	Default value	Templating supported	Description
`oauthToken`	`string`	Yes	None	None	OAuth token for authentication when accessing Yandex Disk.
`path`	`string`	Yes	None	Yes	Audio file path.
`sharedDiskId`	`string`	None	None	Yes	Shared disk label.