Container Audio Transcriptions Chunk Object

data: {
  "type": "transcript.text.delta",
  "delta": "The"
}

data: {
  "type": "transcript.text.delta",
  "delta": " quick"
}

...

data: {
  "type": "transcript.text.done",
  "text": "The quick brown fox jumps over the lazy dog.",
  "usage": {
    "type": "tokens",
    "input_tokens": 20,
    "output_tokens": 10,
    "total_tokens": 30,
    "input_audio_length_ms": 18000,
    "processed_audio_length_ms": 24000,
    "input_token_details": {
      "audio_tokens": 10,
      "text_tokens": 10
    }
  }
}

data: [DONE]

Represents a streamed chunk returned when streaming the audio transcriptions API, based on the provided input.

data: {
  "type": "transcript.text.delta",
  "delta": "The"
}

data: {
  "type": "transcript.text.delta",
  "delta": " quick"
}

...

data: {
  "type": "transcript.text.done",
  "text": "The quick brown fox jumps over the lazy dog.",
  "usage": {
    "type": "tokens",
    "input_tokens": 20,
    "output_tokens": 10,
    "total_tokens": 30,
    "input_audio_length_ms": 18000,
    "processed_audio_length_ms": 24000,
    "input_token_details": {
      "audio_tokens": 10,
      "text_tokens": 10
    }
  }
}

data: [DONE]

enum<string>

required

The event type.Available options: transcript.text.delta, transcript.text.done

string | null

The incremental transcript text.

string | null

The transcribed text.

object | null

Show child attributes

string

required

The type of the usage object. Always tokens for this variant.

integer

required

Number of input tokens billed for this request.

integer

required

Number of output tokens generated.

integer

required

Total number of tokens used (input + output tokens).

integer

required

The length of the input audio in milliseconds.

integer

required

The length of the processed audio in milliseconds.

object | null

Details about the input tokens billed for this request.

Show child attributes

integer

required

Number of audio tokens billed for this request.

integer

required

Number of text tokens billed for this request.

Last modified on July 10, 2026

Container Completions Chunk Object

Cost

⌘I

API Reference

Model APIs

Dedicated

Container

Administration

Dataset and File

Friendli SDK

Container Audio Transcriptions Chunk Object