> ## Documentation Index
> Fetch the complete documentation index at: https://docs.modellix.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# MAI-Transcribe 1.5

> [Core Function] MAI-Transcribe 1.5 transcribes a single public audio URL into text via an async task. [Strengths] Multi-lingual recognition, optional locale forcing, phrase-list biasing, and word-level timestamps. [Best For] Meeting notes, captions, and batch audio-to-text. [Limitations] Do NOT use file upload; URL-only input. Do NOT expect speaker diarization. Supported audio: WAV, MP3, or FLAC up to 300 MB. [Routing] Use this model for Microsoft MAI speech recognition quality with URL-based audio.



## OpenAPI

````yaml /model-api/microsoft/microsoft-s2t.json post /microsoft/mai-transcribe-1.5
openapi: 3.1.0
info:
  title: Microsoft MAI-Transcribe Speech-to-Text API
  description: >-
    Microsoft MAI-Transcribe speech-to-text. Submit a public audio URL as an
    async task; poll GET /api/v1/tasks/{task_id} for the transcription result.
  version: 1.0.0
  contact:
    name: Modellix Support
    email: support@modellix.ai
servers:
  - url: https://api.modellix.ai/api/v1
    description: Microsoft MAI-Transcribe speech-to-text models API
security:
  - bearerAuth: []
paths:
  /microsoft/mai-transcribe-1.5:
    post:
      summary: MAI-Transcribe 1.5
      description: >-
        [Core Function] MAI-Transcribe 1.5 transcribes a single public audio URL
        into text via an async task. [Strengths] Multi-lingual recognition,
        optional locale forcing, phrase-list biasing, and word-level timestamps.
        [Best For] Meeting notes, captions, and batch audio-to-text.
        [Limitations] Do NOT use file upload; URL-only input. Do NOT expect
        speaker diarization. Supported audio: WAV, MP3, or FLAC up to 300 MB.
        [Routing] Use this model for Microsoft MAI speech recognition quality
        with URL-based audio.
      operationId: maiTranscribe15
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MaiTranscribe15Request'
            examples:
              basic:
                summary: Minimal request
                value:
                  url: https://cdn.example.com/meeting.wav
              withHints:
                summary: Locale + phrase list
                value:
                  url: https://cdn.example.com/meeting.mp3
                  locales:
                    - zh
                  phrase_list:
                    - Modellix
                    - MAI
      responses:
        '200':
          description: >-
            Task submitted successfully. Poll GET /api/v1/tasks/{task_id} until
            the task completes; the transcription result is returned on the task
            result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AsyncTaskResponse'
              example:
                code: 0
                message: success
                data:
                  status: pending
                  task_id: task-mai-transcribe-001
                  model_id: microsoft/mai-transcribe-1.5
                  get_result:
                    method: GET
                    url: >-
                      https://api.modellix.ai/api/v1/tasks/task-mai-transcribe-001
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/TooManyRequests'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  schemas:
    MaiTranscribe15Request:
      type: object
      required:
        - url
      additionalProperties: false
      properties:
        url:
          type: string
          minLength: 1
          pattern: ^https?://
          description: >-
            Public http(s) URL of the audio file. Supported formats: WAV, MP3,
            FLAC (up to 300 MB).
        locales:
          type: array
          maxItems: 10
          items:
            type: string
            enum:
              - ar
              - as
              - bg
              - bn
              - ca
              - cs
              - da
              - de
              - el
              - en
              - es
              - et
              - fi
              - fr
              - gu
              - hi
              - hu
              - id
              - it
              - ja
              - kn
              - ko
              - lt
              - ml
              - mr
              - nb
              - nl
              - or
              - pa
              - pl
              - pt
              - ro
              - ru
              - sk
              - sl
              - sv
              - ta
              - te
              - th
              - tr
              - uk
              - vi
              - zh
          description: >-
            Optional language codes to force recognition. Omit for multi-lingual
            auto mode.
        phrase_list:
          type: array
          maxItems: 100
          items:
            type: string
            minLength: 1
            maxLength: 100
          description: Domain phrases for entity biasing (product names, proper nouns).
    AsyncTaskResponse:
      description: Response object for asynchronous task submission.
      type: object
      required:
        - code
        - message
        - data
      properties:
        code:
          type: integer
          description: Response code, 0 indicates success
          example: 0
        message:
          type: string
          description: Response message
          example: success
        data:
          type: object
          required:
            - status
            - task_id
            - model_id
          description: >-
            Task submission details. Poll GET /api/v1/tasks/{task_id} until
            status is success; the transcription appears in result.resources.
            See Common API: Query Task Result.
          properties:
            status:
              type: string
              enum:
                - pending
                - processing
              description: Initial task status
              example: pending
            task_id:
              type: string
              description: Unique task identifier for polling
              example: task-mai-transcribe-001
            model_id:
              type: string
              description: Model ID in provider/model format
              example: microsoft/mai-transcribe-1.5
            get_result:
              type: object
              description: >-
                Endpoint to query the task result. See Common API: Query Task
                Result.
              properties:
                method:
                  type: string
                  example: GET
                url:
                  type: string
                  example: https://api.modellix.ai/api/v1/tasks/task-mai-transcribe-001
  responses:
    BadRequest:
      description: Invalid parameters
    Unauthorized:
      description: Missing or invalid API key
    TooManyRequests:
      description: Rate limited
    InternalServerError:
      description: Internal server error
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````