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

# Vidu Q3 (Reference)

> Vidu Q3 **reference-image to video** — the standard quality tier. Supply 1-7 reference images via `image_urls`; the model keeps the subjects consistent across the generated video.

This model only accepts `image_urls`. For text-to-video, image-to-video or start-end frame generation use [`viduq3_pro`](/api-reference/video-generations/viduq3-pro) — passing `image_url` or `image_end_url` here returns an error.

> **Why not `viduq3_pro` with reference images?** Vidu's reference-to-video endpoint does not accept the `viduq3-pro` model at all. This model is the standard-tier equivalent on that endpoint; [`viduq3_turbo_reference`](/api-reference/video-generations/viduq3-turbo-reference) is the faster, cheaper tier.

**Pricing** — per second of generated video, in tokens (USD at $0.02/token):

| resolution | tokens/s | USD/s |
|---|---|---|
| 540p | 1.75 | $0.035 |
| 720p | 3 | $0.06 |
| 1080p | 3.75 | $0.075 |

Example: an 8s 720p video costs 24 tokens.

Returns an `img_uuid`; poll GET /api/v1/jobs/detail (or use `custom_callback_url`) to get the generated video.



## OpenAPI

````yaml api-reference/video-generations/openapi-viduq3-reference.json POST /api/v1/videos/generations
openapi: 3.1.0
info:
  title: GoEnhance API - Vidu Q3 Turbo Reference
  description: Reference-image to video with Vidu Q3 Turbo.
  version: 1.0.0
servers:
  - url: https://api.goenhance.ai
security: []
paths:
  /api/v1/videos/generations:
    post:
      tags:
        - VideoGenerations
      summary: Vidu Q3 (Reference to Video)
      description: >-
        Vidu Q3 **reference-image to video** — the standard quality tier. Supply
        1-7 reference images via `image_urls`; the model keeps the subjects
        consistent across the generated video.


        This model only accepts `image_urls`. For text-to-video, image-to-video
        or start-end frame generation use
        [`viduq3_pro`](/api-reference/video-generations/viduq3-pro) — passing
        `image_url` or `image_end_url` here returns an error.


        > **Why not `viduq3_pro` with reference images?** Vidu's
        reference-to-video endpoint does not accept the `viduq3-pro` model at
        all. This model is the standard-tier equivalent on that endpoint;
        [`viduq3_turbo_reference`](/api-reference/video-generations/viduq3-turbo-reference)
        is the faster, cheaper tier.


        **Pricing** — per second of generated video, in tokens (USD at
        $0.02/token):


        | resolution | tokens/s | USD/s |

        |---|---|---|

        | 540p | 1.75 | $0.035 |

        | 720p | 3 | $0.06 |

        | 1080p | 3.75 | $0.075 |


        Example: an 8s 720p video costs 24 tokens.


        Returns an `img_uuid`; poll GET /api/v1/jobs/detail (or use
        `custom_callback_url`) to get the generated video.
      parameters:
        - name: Authorization
          in: header
          description: ''
          required: false
          example: '{{Authorization}}'
          schema:
            type: string
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                model:
                  type: string
                  enum:
                    - viduq3_reference
                  description: Model name. Must be `viduq3_reference`.
                prompt:
                  type: string
                  description: Text prompt describing the video.
                image_urls:
                  type: array
                  items:
                    type: string
                    format: uri
                  minItems: 1
                  maxItems: 7
                  description: >-
                    Reference image URLs (required, 1-7 images). Each image must
                    be at least 128x128 px, aspect ratio between 1:4 and 4:1,
                    max 50MB; png/jpeg/jpg/webp.
                duration:
                  type: integer
                  minimum: 3
                  maximum: 16
                  default: 5
                  description: Video duration in seconds (3-16). Defaults to 5.
                resolution:
                  type: string
                  enum:
                    - 540p
                    - 720p
                    - 1080p
                  default: 720p
                  description: Output resolution.
                ratio:
                  type: string
                  description: >-
                    Aspect ratio of the output video. Reference-to-video
                    supports fewer ratios than the generation endpoints.
                    `aspect_ratio` is accepted as a compatible alias.
                  enum:
                    - '16:9'
                    - '9:16'
                    - '1:1'
                  default: '16:9'
                custom_callback_url:
                  type: string
                  format: uri
                  description: >-
                    Optional. A publicly accessible HTTPS URL. When the task
                    status changes (processing / success / failed), GoEnhance
                    sends a POST request to this URL. The request body is
                    identical to the response of GET /api/v1/jobs/detail. If
                    your server does not respond with HTTP 200, the notification
                    is retried up to 3 times, with a 3-second timeout per
                    attempt.
                  example: https://your-server.com/goenhance/callback
              required:
                - model
                - prompt
                - image_urls
            example:
              model: viduq3_reference
              prompt: The two characters hug by the lakeside at sunset, cinematic
              image_urls:
                - https://your-cdn.com/subject-1.jpg
                - https://your-cdn.com/subject-2.jpg
              duration: 8
              resolution: 720p
      responses:
        '200':
          description: ''
          content:
            application/json:
              schema:
                type: object
                properties:
                  code:
                    type: integer
                  msg:
                    type: string
                  data:
                    type: object
                    properties:
                      img_uuid:
                        type: string
                    required:
                      - img_uuid
                required:
                  - code
                  - msg
                  - data
              examples:
                '1':
                  summary: Success
                  value:
                    code: 0
                    msg: Success
                    data:
                      img_uuid: c12b656c-747a-44fd-9c80-add79b0c52d5
                '2':
                  summary: Insufficient tokens
                  value:
                    code: 100
                    msg: tokens is not enough
          headers: {}
        '401':
          description: ''
          content:
            application/json:
              schema:
                type: object
                properties:
                  code:
                    type: integer
                  msg:
                    type: string
                required:
                  - code
                  - msg
          headers: {}
      deprecated: false
      security: []

````