openapi: 3.2.0
info:
  title: Budgetpixel Bytedance API
  version: '2026-06-20'
  contact:
    email: support@budgetpixel.com
    name: BudgetPixel Support
  description: 'Operations tagged Bytedance 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:
- description: SeeDream image models
  name: Bytedance
paths:
  /images/seedream-4.5:
    post:
      description: 'ByteDance SeeDream 4.5 — text-to-image, plus image editing and multi-reference composition from up to 9 reference images. Strong aesthetics, 2K/4K output.


        **Asynchronous.** Returns a job `id` (the image is not in this response). Poll [`GET /v1/images/{id}`](/api-reference/images/get-image-job-status) until `status` is `succeeded` — the generated image URLs are in that response''s `images` array (each `{ url, position }`).'
      operationId: createImage_seedream_4_5
      requestBody:
        content:
          application/json:
            schema:
              properties:
                aspect_ratio:
                  default: '1:1'
                  description: Output aspect ratio.
                  enum:
                  - '1:1'
                  - '4:3'
                  - '3:4'
                  - '16:9'
                  - '9:16'
                  - '2:3'
                  - '3:2'
                  - '21:9'
                  - '9:21'
                  type: string
                max_images:
                  default: 1
                  description: 'Ceiling for grouped generation when sequential_image_generation is "auto": the model returns up to this many related images and decides the exact count (not guaranteed to be exactly this many). You are billed per image returned.'
                  maximum: 4
                  minimum: 1
                  type: integer
                num_images:
                  default: 1
                  description: Number of images to generate.
                  maximum: 4
                  minimum: 1
                  type: integer
                prompt:
                  description: Text description of the image to generate.
                  type: string
                reference_images:
                  description: Optional reference images (up to 9) for image editing and multi-reference composition. Each item is a public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. Omit for text-to-image.
                  items:
                    type: string
                  maxItems: 9
                  type: array
                sequential_image_generation:
                  default: disabled
                  description: Set to "auto" to return a group of related images (up to max_images); "disabled" (default) returns a single image.
                  enum:
                  - disabled
                  - auto
                  type: string
                size:
                  default: 2K
                  description: Output resolution.
                  enum:
                  - 2K
                  - 4K
                  type: string
              required:
              - prompt
              type: object
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateImageResponse'
          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 image with SeeDream 4.5
      tags:
      - Bytedance
    servers:
    - description: Production
      url: https://api.budgetpixel.com/v1
  /images/seedream-5.0-lite:
    post:
      description: 'ByteDance SeeDream 5.0 Lite — fast unified text-to-image and image editing with multi-reference composition from up to 9 reference images, 2K/3K output, and grouped sequential generation.


        **Asynchronous.** Returns a job `id` (the image is not in this response). Poll [`GET /v1/images/{id}`](/api-reference/images/get-image-job-status) until `status` is `succeeded` — the generated image URLs are in that response''s `images` array (each `{ url, position }`).'
      operationId: createImage_seedream_5_0_lite
      requestBody:
        content:
          application/json:
            schema:
              properties:
                aspect_ratio:
                  default: '1:1'
                  description: Output aspect ratio.
                  enum:
                  - '1:1'
                  - '4:3'
                  - '3:4'
                  - '16:9'
                  - '9:16'
                  - '2:3'
                  - '3:2'
                  - '21:9'
                  - '9:21'
                  type: string
                max_images:
                  default: 1
                  description: 'Ceiling for grouped generation when sequential_image_generation is "auto": the model returns up to this many related images and decides the exact count (not guaranteed to be exactly this many). You are billed per image returned.'
                  maximum: 14
                  minimum: 1
                  type: integer
                num_images:
                  default: 1
                  description: Number of images to generate.
                  maximum: 4
                  minimum: 1
                  type: integer
                prompt:
                  description: Text description of the image to generate.
                  type: string
                reference_images:
                  description: Optional reference images (up to 9) for image editing and multi-reference composition. Each item is a public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. Omit for text-to-image.
                  items:
                    type: string
                  maxItems: 9
                  type: array
                sequential_image_generation:
                  default: disabled
                  description: Set to "auto" to return a group of related images (up to max_images); "disabled" (default) returns a single image.
                  enum:
                  - disabled
                  - auto
                  type: string
                size:
                  default: 2K
                  description: Output resolution.
                  enum:
                  - 2K
                  - 3K
                  type: string
              required:
              - prompt
              type: object
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateImageResponse'
          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 image with SeeDream 5.0 Lite
      tags:
      - Bytedance
    servers:
    - description: Production
      url: https://api.budgetpixel.com/v1
  /images/seedream-5.0-pro:
    post:
      description: 'ByteDance SeeDream 5.0 Pro — precise image editing with full layer control. Text-to-image, instruction-based editing, and multi-reference composition from up to 9 reference images with 1K/2K output. Billing: 55 credits per image at 1K, 110 at 2K; input images bill 5 credits each after the first (first is free). No grouped/sequential generation.


        **Asynchronous.** Returns a job `id` (the image is not in this response). Poll [`GET /v1/images/{id}`](/api-reference/images/get-image-job-status) until `status` is `succeeded` — the generated image URLs are in that response''s `images` array (each `{ url, position }`).'
      operationId: createImage_seedream_5_0_pro
      requestBody:
        content:
          application/json:
            schema:
              properties:
                aspect_ratio:
                  default: '1:1'
                  description: Output aspect ratio.
                  enum:
                  - '1:1'
                  - '4:3'
                  - '3:4'
                  - '16:9'
                  - '9:16'
                  - '2:3'
                  - '3:2'
                  - '21:9'
                  - '9:21'
                  type: string
                num_images:
                  default: 1
                  description: Number of images to generate.
                  maximum: 4
                  minimum: 1
                  type: integer
                prompt:
                  description: Text description of the image to generate.
                  type: string
                reference_images:
                  description: Optional reference images (up to 9) for image editing and multi-reference composition. Each item is a public image URL, a data URI, raw base64, or an uploaded-file URL from POST /v1/uploads. Omit for text-to-image. The first input image is free; each additional one bills 5 credits per generated image.
                  items:
                    type: string
                  maxItems: 9
                  type: array
                size:
                  default: 1K
                  description: Output resolution. 1K bills 55 credits per image; 2K bills 110.
                  enum:
                  - 1K
                  - 2K
                  type: string
              required:
              - prompt
              type: object
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateImageResponse'
          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 image with SeeDream 5.0 Pro
      tags:
      - Bytedance
    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:
    CreateImageResponse:
      properties:
        id:
          description: Opaque job id — use it to poll status.
          example: img_a1b2c3d4e5f6
          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