BudgetPixel Mini Max API

openapi: 3.2.0
info:
  title: Budgetpixel Mini Max API
  version: '2026-06-20'
  contact:
    email: support@budgetpixel.com
    name: BudgetPixel Support
  description: 'Operations tagged MiniMax across 2 of this provider''s published API definitions: budgetpixel-openapi.yaml, budgetpixel-openapi.yaml. Each path carries the servers of the definition it was published in.'
servers:
- description: Production
  url: https://api.budgetpixel.com/v1
security:
- ApiKeyAuth: []
tags:
- name: MiniMax
paths:
  /videos/minimax-h3:
    post:
      description: 'MiniMax H3 — multimodal 2K video. Text-to-video; image-to-video (start + optional end frame); and reference-to-video mixing up to 5 reference images, up to 3 reference video clips (2-15s each, 15s combined — billed per second of INPUT on top of the output, see POST /v1/cost), and up to 3 reference audio clips (15s combined, free). Reference media can''t be combined with start/end frames. Any duration from 4 to 15 seconds.


        **Asynchronous.** Returns a job `id` (the video is not in this response). Poll [`GET /v1/videos/{id}`](/api-reference/videos/get-video-job-status) until `status` is `succeeded` — the video URL is in that response''s `video_url`.'
      operationId: createVideo_minimax_h3
      requestBody:
        content:
          application/json:
            schema:
              properties:
                aspect_ratio:
                  default: '16:9'
                  description: Aspect ratio for text-to-video. Ignored (adaptive) when any image or reference input sets the frame.
                  enum:
                  - '21:9'
                  - '16:9'
                  - '9:16'
                  - '1:1'
                  - '4:3'
                  - '3:4'
                  type: string
                end_image:
                  description: Optional end frame, used together with `image` (the start frame) to interpolate the video between the two frames. Same input forms as `image`.
                  type: string
                image:
                  description: Optional start frame for image-to-video. Provide a public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. Omit for text-to-video. Can't be combined with reference media.
                  type: string
                length_seconds:
                  default: 5
                  description: Output video length in seconds (4-15).
                  maximum: 15
                  minimum: 4
                  type: integer
                prompt:
                  description: Text description of the video.
                  type: string
                reference_audios:
                  description: Optional reference audio clips (up to 3; each 2-15s, 15s combined; WAV/MP3) that guide sound/voice in reference-to-video mode. Each item is a public audio URL or an uploaded-file URL from POST /v1/uploads. Free — no input billing. Can't be combined with `image`/`end_image`.
                  items:
                    type: string
                  maxItems: 3
                  type: array
                reference_images:
                  description: Optional reference images (up to 5) that guide identity/style in reference-to-video mode. Each item is a public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. Can't be combined with `image`/`end_image`.
                  items:
                    type: string
                  maxItems: 5
                  type: array
                reference_videos:
                  description: Optional reference video clips (up to 3; each 2-15s, 15s combined; MP4/WebM, ≤30MB each) that guide motion/identity in reference-to-video mode. Each item is a public video URL or an uploaded-file URL from POST /v1/uploads (videos are passed by URL, not inlined). Billed at the model's per-second rate on the INPUT duration in addition to the output — estimate via POST /v1/cost. Can't be combined with `image`/`end_image`.
                  items:
                    type: string
                  maxItems: 3
                  type: array
              required:
              - prompt
              type: object
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateVideoResponse'
          description: Job accepted.
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '429':
          $ref: '#/components/responses/TooManyRequests'
      summary: Generate video with MiniMax H3
      tags:
      - MiniMax
    servers:
    - description: Production
      url: https://api.budgetpixel.com/v1
components:
  responses:
    Forbidden:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Authenticated but not permitted (plan gate, ownership, account restriction). Content-moderation blocks are 400, not 403.
    BadRequest:
      content:
        application/json:
          schema:
            oneOf:
            - $ref: '#/components/schemas/Error'
            - $ref: '#/components/schemas/ModerationBlocked'
      description: The request was malformed, referenced an unavailable model, or was blocked by input content moderation (moderation blocks carry a `restriction_reason` — see ModerationBlocked).
    TooManyRequests:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Rate or queue limit reached. Retry after a short delay.
    Unauthorized:
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
      description: Missing or invalid API key.
  schemas:
    CreateVideoResponse:
      properties:
        id:
          description: Opaque job id — use it to poll status.
          type: string
        message:
          type: string
        model:
          type: string
        status:
          $ref: '#/components/schemas/JobStatus'
      type: object
    ModerationBlocked:
      description: Returned (with HTTP 400) when the input content moderation gate blocks a generation request. The block is a property of the request's prompt or input media — reword the prompt or change the input and retry. Branch on `restriction_reason`, which is stable and machine-readable.
      properties:
        error:
          description: Human-readable explanation of the block.
          type: string
        restriction_reason:
          description: Stable machine-readable block reason.
          enum:
          - input_csam
          - input_explicit_adult
          - input_upload_nudity
          - input_celebrity_likeness
          - strict_model_nsfw
          type: string
      required:
      - error
      - restriction_reason
      type: object
    JobStatus:
      description: Lifecycle state. `succeeded`/`failed`/`timeout` are terminal.
      enum:
      - pending
      - starting
      - processing
      - completing
      - succeeded
      - failed
      - timeout
      type: string
    Error:
      properties:
        error:
          properties:
            code:
              description: Stable machine-readable code.
              example: model_not_available
              type: string
            message:
              type: string
            type:
              description: Error category.
              example: invalid_request_error
              type: string
          required:
          - type
          - code
          - message
          type: object
      required:
      - error
      type: object
  securitySchemes:
    ApiKeyAuth:
      bearerFormat: bpx_live_*
      description: 'API key as a bearer token: Authorization: Bearer bpx_live_xxx'
      scheme: bearer
      type: http
x-refined-from:
- budgetpixel-openapi.yaml
- budgetpixel-openapi.yaml