Hyperbolic Image Prompt QA Loop

arazzo: 1.0.1
info:
  title: Hyperbolic Image Prompt QA Loop
  summary: Render an image, judge it with a vision model, and re-render once if it fails QA.
  description: >-
    A quality-controlled image pipeline that branches on a vision model's
    verdict. A diffusion model renders an image, a vision-capable chat model
    inspects the base64 result against the requested subject and returns a PASS
    or FAIL verdict, and on failure the workflow re-renders once with a higher
    step count. Every step inlines its request and inline Authorization Bearer
    credential so the flow reads and runs without opening the OpenAPI sources.
  version: 1.0.0
sourceDescriptions:
- name: imageGenerationApi
  url: ../openapi/hyperbolic-image-generation-api-openapi.yml
  type: openapi
- name: chatCompletionsApi
  url: ../openapi/hyperbolic-chat-completions-api-openapi.yml
  type: openapi
workflows:
- workflowId: image-prompt-qa
  summary: Generate an image, QA it with a vision model, and re-render on failure.
  description: >-
    Renders an image from a prompt, asks a vision model whether it matches the
    requested subject, and branches: a PASS ends the flow while a FAIL triggers
    a single higher-quality re-render.
  inputs:
    type: object
    required:
    - apiKey
    - imageModel
    - prompt
    - visionModel
    properties:
      apiKey:
        type: string
        description: Hyperbolic API key passed as a Bearer token.
      imageModel:
        type: string
        description: Image model name (e.g. SDXL1.0-base).
      prompt:
        type: string
        description: The text-to-image prompt describing the desired subject.
      visionModel:
        type: string
        description: Vision-capable chat model id used to judge the image.
  steps:
  - stepId: render
    description: >-
      Generate a first-pass image from the prompt and capture its base64 bytes.
    operationId: generateImage
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.apiKey"
    requestBody:
      contentType: application/json
      payload:
        model_name: $inputs.imageModel
        prompt: $inputs.prompt
        steps: 25
        n: 1
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      image: $response.body#/images/0/image
  - stepId: judge
    description: >-
      Ask the vision model whether the rendered image matches the requested
      subject, requiring a verdict that starts with PASS or FAIL.
    operationId: createChatCompletion
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.apiKey"
    requestBody:
      contentType: application/json
      payload:
        model: $inputs.visionModel
        messages:
        - role: user
          content:
          - type: text
            text: "Does this image match the request: $inputs.prompt? Reply with PASS or FAIL then a short reason."
          - type: image_url
            image_url:
              url: "data:image/png;base64,$steps.render.outputs.image"
        max_tokens: 120
        temperature: 0
        stream: false
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      verdict: $response.body#/choices/0/message/content
    onSuccess:
    - name: passed
      type: end
      criteria:
      - context: $response.body
        condition: $.choices[0].message.content =~ '^PASS'
        type: jsonpath
    - name: failed
      type: goto
      stepId: rerender
      criteria:
      - context: $response.body
        condition: $.choices[0].message.content =~ '^FAIL'
        type: jsonpath
  - stepId: rerender
    description: >-
      Re-render the image once at a higher step count when the vision model
      rejected the first pass.
    operationId: generateImage
    parameters:
    - name: Authorization
      in: header
      value: "Bearer $inputs.apiKey"
    requestBody:
      contentType: application/json
      payload:
        model_name: $inputs.imageModel
        prompt: $inputs.prompt
        steps: 50
        n: 1
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      image: $response.body#/images/0/image
      seed: $response.body#/images/0/seed
  outputs:
    firstImage: $steps.render.outputs.image
    verdict: $steps.judge.outputs.verdict
    finalImage: $steps.rerender.outputs.image