Parallel Responses API

The Responses API returns grounded, cited answers from the live web in a single synchronous call, and is OpenAI Responses-compatible so it can be dropped into existing clients. Pricing and latency are selected with `reasoning.effort` (low, medium, high), making it the latency-sensitive counterpart to the asynchronous Task API — suitable for research subagents and in-product answers.

OpenAPI Specification

parallel-responses-api-openapi.yml Raw ↑
openapi: 3.1.0
info:
  title: Parallel Responses API
  description: Parallel API
  contact:
    name: Parallel Support
    url: https://parallel.ai
    email: support@parallel.ai
  version: 0.1.2
servers:
- url: https://api.parallel.ai
  description: Parallel API
security:
- ApiKeyAuth: []
tags:
- name: Responses API
  description: 'An OpenAI-Responses-compatible interface for answers grounded in live web research, with URL citations.
    Point any Responses-API client — the OpenAI Python SDK, OpenAI TypeScript SDK, the Agents SDK, or raw HTTP —
    at `https://api.parallel.ai` with your Parallel API key, set `model` to `parallel`, and call `/v1/responses`.

    - `input` accepts a plain string or an array of role/content messages (canonical OpenAI shape; text content
    only).

    - `reasoning.effort` (`low`/`medium`/`high`) controls how much research is performed, trading response time
    for answer quality.

    - Multi-turn via `previous_response_id`.

    - Structured outputs via `text.format = {"type": "json_schema", "name": ..., "schema": {...}}`.

    - Streaming (`stream=true`) emits the standard OpenAI Responses SSE lifecycle: `response.created` and `response.in_progress`,
    then output item / content part / text delta events with URL-citation annotations, the matching `*.done` events,
    and a terminal `response.completed` — or `response.failed` if the request fails mid-stream.'
paths:
  /v1/responses:
    post:
      tags:
      - Responses API
      summary: Create Response
      description: 'Create a response.


        Generates an answer to the given input, grounded in live web research and

        annotated with URL citations. Set `model` to `parallel`; `reasoning.effort`

        (`low`/`medium`/`high`) controls how much research is performed, trading

        response time for answer quality. Returns an OpenAI-format `Response` as

        `application/json`, or a `text/event-stream` of OpenAI Responses SSE

        events when `stream=true`.'
      operationId: create_response_v1_responses_post
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ResponseCreateRequest'
        required: true
      responses:
        '200':
          description: Returns a Response object for non-streaming requests (application/json), or a stream of OpenAI
            Responses streaming events (text/event-stream) when `stream=true` is set in the request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Response'
            text/event-stream:
              schema:
                $ref: '#/components/schemas/ResponseStreamEvent'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    AnnotationURLCitation:
      additionalProperties: true
      description: A citation for a web resource used to generate a model response.
      properties:
        end_index:
          title: End Index
          type: integer
        start_index:
          title: Start Index
          type: integer
        title:
          title: Title
          type: string
        type:
          const: url_citation
          title: Type
          type: string
        url:
          title: Url
          type: string
      required:
      - end_index
      - start_index
      - title
      - type
      - url
      title: AnnotationURLCitation
      type: object
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    IncompleteDetails:
      additionalProperties: true
      description: Details about why the response is incomplete.
      properties:
        reason:
          anyOf:
          - enum:
            - max_output_tokens
            - content_filter
            type: string
          - type: 'null'
          default: null
          title: Reason
      title: IncompleteDetails
      type: object
    InputTokensDetails:
      additionalProperties: true
      description: A detailed breakdown of the input tokens.
      properties:
        cached_tokens:
          title: Cached Tokens
          type: integer
      required:
      - cached_tokens
      title: InputTokensDetails
      type: object
    Moderation:
      additionalProperties: true
      description: Moderation results for the response input and output, if moderated completions were requested.
      properties:
        input:
          anyOf:
          - $ref: '#/components/schemas/ModerationInputModerationResult'
          - $ref: '#/components/schemas/ModerationInputError'
          title: Input
        output:
          anyOf:
          - $ref: '#/components/schemas/ModerationOutputModerationResult'
          - $ref: '#/components/schemas/ModerationOutputError'
          title: Output
      required:
      - input
      - output
      title: Moderation
      type: object
    ModerationInputError:
      additionalProperties: true
      description: An error produced while attempting moderation for the response input or output.
      properties:
        code:
          title: Code
          type: string
        message:
          title: Message
          type: string
        type:
          const: error
          title: Type
          type: string
      required:
      - code
      - message
      - type
      title: ModerationInputError
      type: object
    ModerationInputModerationResult:
      additionalProperties: true
      description: A moderation result produced for the response input or output.
      properties:
        categories:
          additionalProperties:
            type: boolean
          title: Categories
          type: object
        category_applied_input_types:
          additionalProperties:
            items:
              enum:
              - text
              - image
              type: string
            type: array
          title: Category Applied Input Types
          type: object
        category_scores:
          additionalProperties:
            type: number
          title: Category Scores
          type: object
        flagged:
          title: Flagged
          type: boolean
        model:
          title: Model
          type: string
        type:
          const: moderation_result
          title: Type
          type: string
      required:
      - categories
      - category_applied_input_types
      - category_scores
      - flagged
      - model
      - type
      title: ModerationInputModerationResult
      type: object
    ModerationOutputError:
      additionalProperties: true
      description: An error produced while attempting moderation for the response input or output.
      properties:
        code:
          title: Code
          type: string
        message:
          title: Message
          type: string
        type:
          const: error
          title: Type
          type: string
      required:
      - code
      - message
      - type
      title: ModerationOutputError
      type: object
    ModerationOutputModerationResult:
      additionalProperties: true
      description: A moderation result produced for the response input or output.
      properties:
        categories:
          additionalProperties:
            type: boolean
          title: Categories
          type: object
        category_applied_input_types:
          additionalProperties:
            items:
              enum:
              - text
              - image
              type: string
            type: array
          title: Category Applied Input Types
          type: object
        category_scores:
          additionalProperties:
            type: number
          title: Category Scores
          type: object
        flagged:
          title: Flagged
          type: boolean
        model:
          title: Model
          type: string
        type:
          const: moderation_result
          title: Type
          type: string
      required:
      - categories
      - category_applied_input_types
      - category_scores
      - flagged
      - model
      - type
      title: ModerationOutputModerationResult
      type: object
    OutputTokensDetails:
      additionalProperties: true
      description: A detailed breakdown of the output tokens.
      properties:
        reasoning_tokens:
          title: Reasoning Tokens
          type: integer
      required:
      - reasoning_tokens
      title: OutputTokensDetails
      type: object
    Response:
      additionalProperties: true
      description: 'A response from the `parallel` model. A completed response contains a

        single assistant message whose text is annotated with URL citations

        grounding the answer.'
      properties:
        id:
          title: Id
          type: string
        created_at:
          title: Created At
          type: number
        error:
          anyOf:
          - $ref: '#/components/schemas/ResponseError'
          - type: 'null'
          default: null
        incomplete_details:
          anyOf:
          - $ref: '#/components/schemas/IncompleteDetails'
          - type: 'null'
          default: null
        instructions:
          anyOf:
          - type: string
          - type: 'null'
          default: null
          title: Instructions
        metadata:
          anyOf:
          - additionalProperties:
              type: string
            type: object
          - type: 'null'
          default: null
          title: Metadata
        model:
          const: parallel
          default: parallel
          title: Model
          type: string
        object:
          const: response
          title: Object
          type: string
        output:
          items:
            $ref: '#/components/schemas/ResponseOutputMessage'
          title: Output
          type: array
        parallel_tool_calls:
          title: Parallel Tool Calls
          type: boolean
        temperature:
          anyOf:
          - type: number
          - type: 'null'
          default: null
          title: Temperature
        tool_choice:
          default: auto
          title: Tool Choice
          type: string
        tools:
          default: []
          items: {}
          title: Tools
          type: array
        top_p:
          anyOf:
          - type: number
          - type: 'null'
          default: null
          title: Top P
        background:
          anyOf:
          - type: boolean
          - type: 'null'
          default: null
          title: Background
        completed_at:
          anyOf:
          - type: number
          - type: 'null'
          default: null
          title: Completed At
        conversation:
          default: null
          title: Conversation
          type: 'null'
        max_output_tokens:
          anyOf:
          - type: integer
          - type: 'null'
          default: null
          title: Max Output Tokens
        max_tool_calls:
          anyOf:
          - type: integer
          - type: 'null'
          default: null
          title: Max Tool Calls
        moderation:
          anyOf:
          - $ref: '#/components/schemas/Moderation'
          - type: 'null'
          default: null
        previous_response_id:
          anyOf:
          - type: string
          - type: 'null'
          default: null
          title: Previous Response Id
        prompt:
          default: null
          title: Prompt
          type: 'null'
        prompt_cache_key:
          anyOf:
          - type: string
          - type: 'null'
          default: null
          title: Prompt Cache Key
        prompt_cache_retention:
          anyOf:
          - enum:
            - in_memory
            - 24h
            type: string
          - type: 'null'
          default: null
          title: Prompt Cache Retention
        reasoning:
          anyOf:
          - $ref: '#/components/schemas/ResponseReasoningConfig'
          - type: 'null'
          default: null
        safety_identifier:
          anyOf:
          - type: string
          - type: 'null'
          default: null
          title: Safety Identifier
        service_tier:
          anyOf:
          - enum:
            - auto
            - default
            - flex
            - scale
            - priority
            type: string
          - type: 'null'
          default: null
          title: Service Tier
        status:
          anyOf:
          - enum:
            - completed
            - failed
            - in_progress
            - cancelled
            - queued
            - incomplete
            type: string
          - type: 'null'
          default: null
          title: Status
        text:
          anyOf:
          - $ref: '#/components/schemas/ResponseTextConfig'
          - type: 'null'
          default: null
        top_logprobs:
          anyOf:
          - type: integer
          - type: 'null'
          default: null
          title: Top Logprobs
        truncation:
          anyOf:
          - enum:
            - auto
            - disabled
            type: string
          - type: 'null'
          default: null
          title: Truncation
        usage:
          anyOf:
          - $ref: '#/components/schemas/ResponseUsage'
          - type: 'null'
          default: null
        user:
          anyOf:
          - type: string
          - type: 'null'
          default: null
          title: User
      required:
      - id
      - created_at
      - object
      - output
      - parallel_tool_calls
      title: Response
      type: object
    ResponseCompletedEvent:
      additionalProperties: true
      properties:
        response:
          $ref: '#/components/schemas/Response'
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.completed
          title: Type
          type: string
      required:
      - response
      - sequence_number
      - type
      title: ResponseCompletedEvent
      type: object
    ResponseContentPartAddedEvent:
      additionalProperties: true
      properties:
        content_index:
          title: Content Index
          type: integer
        item_id:
          title: Item Id
          type: string
        output_index:
          title: Output Index
          type: integer
        part:
          $ref: '#/components/schemas/ResponseOutputText'
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.content_part.added
          title: Type
          type: string
      required:
      - content_index
      - item_id
      - output_index
      - part
      - sequence_number
      - type
      title: ResponseContentPartAddedEvent
      type: object
    ResponseContentPartDoneEvent:
      additionalProperties: true
      properties:
        content_index:
          title: Content Index
          type: integer
        item_id:
          title: Item Id
          type: string
        output_index:
          title: Output Index
          type: integer
        part:
          $ref: '#/components/schemas/ResponseOutputText'
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.content_part.done
          title: Type
          type: string
      required:
      - content_index
      - item_id
      - output_index
      - part
      - sequence_number
      - type
      title: ResponseContentPartDoneEvent
      type: object
    ResponseCreateRequest:
      properties:
        model:
          type: string
          title: Model
          description: The model to run. `parallel` is the only supported value (matched case-insensitively); any
            other value is rejected. To trade response time for answer quality, set `reasoning.effort` (low/medium/high)
            rather than changing the model name.
          examples:
          - parallel
        input:
          anyOf:
          - type: string
          - items:
              $ref: '#/components/schemas/ResponseInputMessage'
            type: array
          title: Input
          description: 'The input to generate a response for: a plain string, or a list of role/content messages
            that includes at least one `user` message. Must be non-empty, and only text content is supported. `input`
            and `instructions` together may total at most 20,000 characters.'
          examples:
          - What are the latest developments in fusion energy?
        instructions:
          anyOf:
          - type: string
          - type: 'null'
          title: Instructions
          description: System instructions for the model.
        previous_response_id:
          anyOf:
          - type: string
          - type: 'null'
          title: Previous Response Id
          description: ID of a previous response to use as conversation context.
        stream:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Stream
          description: Whether to stream the response.
        text:
          anyOf:
          - $ref: '#/components/schemas/ResponseTextConfig'
          - type: 'null'
          description: Configuration for text output, including structured output.
        metadata:
          anyOf:
          - additionalProperties:
              type: string
            type: object
            maxProperties: 16
          - type: 'null'
          title: Metadata
          description: Arbitrary key-value pairs, echoed back on the Response object. Useful for tagging requests.
            At most 16 keys; keys up to 64 characters, values up to 512 characters.
        reasoning:
          anyOf:
          - $ref: '#/components/schemas/ResponseReasoningConfig'
          - type: 'null'
          description: Reasoning configuration. `effort` (low/medium/high) controls how much research is performed;
            defaults to `medium`.
        background:
          anyOf:
          - type: boolean
          - type: 'null'
          title: Background
          description: 'Background mode is not supported: requests with `background=true` are rejected with a 422
            validation error. Use the Task API (POST /v1/tasks/runs) for long-running work.'
      type: object
      required:
      - model
      - input
      title: ResponseCreateRequest
      description: 'Request body for the Responses API (`POST /v1/responses`).


        OpenAI-Responses-compatible: point a standard OpenAI client at

        `https://api.parallel.ai/v1` with your Parallel API key and set `model` to

        `parallel`. The fields below are the ones Parallel acts on; other OpenAI

        request fields (`tools`, `tool_choice`, `temperature`, `top_p`,

        `max_output_tokens`, `parallel_tool_calls`, `truncation`, `store`, `user`,

        `include`) are accepted for compatibility but have no effect.'
    ResponseCreatedEvent:
      additionalProperties: true
      properties:
        response:
          $ref: '#/components/schemas/Response'
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.created
          title: Type
          type: string
      required:
      - response
      - sequence_number
      - type
      title: ResponseCreatedEvent
      type: object
    ResponseError:
      additionalProperties: true
      description: Details of a failed response.
      properties:
        code:
          const: server_error
          description: Error code; currently always "server_error".
          title: Code
          type: string
        message:
          title: Message
          type: string
      required:
      - code
      - message
      title: ResponseError
      type: object
    ResponseFailedEvent:
      additionalProperties: true
      properties:
        response:
          $ref: '#/components/schemas/Response'
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.failed
          title: Type
          type: string
      required:
      - response
      - sequence_number
      - type
      title: ResponseFailedEvent
      type: object
    ResponseFormatJSONObject:
      additionalProperties: true
      description: 'JSON object response format.


        An older method of generating JSON responses.

        Using `json_schema` is recommended for models that support it. Note that the

        model will not generate JSON without a system or user message instructing it

        to do so.'
      properties:
        type:
          const: json_object
          title: Type
          type: string
      required:
      - type
      title: ResponseFormatJSONObject
      type: object
    ResponseFormatText:
      additionalProperties: true
      description: Default response format. Used to generate text responses.
      properties:
        type:
          const: text
          title: Type
          type: string
      required:
      - type
      title: ResponseFormatText
      type: object
    ResponseFormatTextJSONSchemaConfig:
      additionalProperties: true
      description: 'JSON Schema output format: the response''s output text conforms to `schema`.'
      properties:
        name:
          title: Name
          type: string
        schema:
          additionalProperties: true
          title: Schema
          type: object
        type:
          const: json_schema
          title: Type
          type: string
        description:
          anyOf:
          - type: string
          - type: 'null'
          default: null
          title: Description
        strict:
          anyOf:
          - type: boolean
          - type: 'null'
          default: null
          title: Strict
      required:
      - name
      - schema
      - type
      title: ResponseFormatTextJSONSchemaConfig
      type: object
    ResponseInProgressEvent:
      additionalProperties: true
      properties:
        response:
          $ref: '#/components/schemas/Response'
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.in_progress
          title: Type
          type: string
      required:
      - response
      - sequence_number
      - type
      title: ResponseInProgressEvent
      type: object
    ResponseIncompleteEvent:
      additionalProperties: true
      properties:
        response:
          $ref: '#/components/schemas/Response'
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.incomplete
          title: Type
          type: string
      required:
      - response
      - sequence_number
      - type
      title: ResponseIncompleteEvent
      type: object
    ResponseInputContentPart:
      properties:
        type:
          anyOf:
          - type: string
          - type: 'null'
          title: Type
          description: 'The content part type. Supported: `input_text`, `output_text`, and `text`. Multimodal types
            (`input_image`, `input_audio`, `input_file`) are rejected with a 422 error.'
        text:
          anyOf:
          - type: string
          - type: 'null'
          title: Text
          description: The text payload, when the part carries one.
      type: object
      title: ResponseInputContentPart
      description: 'A single content part of a message, e.g.

        `{"text": "hi", "type": "input_text"}`. Only text parts are supported;

        requests containing image, audio, or file parts fail with a 422 error.'
    ResponseInputMessage:
      properties:
        role:
          type: string
          enum:
          - user
          - assistant
          - system
          - developer
          title: Role
          description: The role of the message author.
        content:
          anyOf:
          - type: string
          - items:
              $ref: '#/components/schemas/ResponseInputContentPart'
            type: array
          title: Content
          description: Text content of the message. Either a string or a list of content parts (`{text, type}` objects)
            for OpenAI SDK clients.
      type: object
      required:
      - role
      - content
      title: ResponseInputMessage
      description: 'A single input message for the Responses API.


        `content` accepts either a bare string (`"hi"`) or the canonical OpenAI

        list-of-parts (`[{"text": "hi", "type": "input_text"}]`).'
    ResponseOutputItemAddedEvent:
      additionalProperties: true
      properties:
        item:
          $ref: '#/components/schemas/ResponseOutputMessage'
        output_index:
          title: Output Index
          type: integer
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.output_item.added
          title: Type
          type: string
      required:
      - item
      - output_index
      - sequence_number
      - type
      title: ResponseOutputItemAddedEvent
      type: object
    ResponseOutputItemDoneEvent:
      additionalProperties: true
      properties:
        item:
          $ref: '#/components/schemas/ResponseOutputMessage'
        output_index:
          title: Output Index
          type: integer
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.output_item.done
          title: Type
          type: string
      required:
      - item
      - output_index
      - sequence_number
      - type
      title: ResponseOutputItemDoneEvent
      type: object
    ResponseOutputMessage:
      additionalProperties: true
      description: An assistant message produced by the model.
      properties:
        id:
          title: Id
          type: string
        content:
          items:
            $ref: '#/components/schemas/ResponseOutputText'
          title: Content
          type: array
        role:
          const: assistant
          title: Role
          type: string
        status:
          enum:
          - in_progress
          - completed
          - incomplete
          title: Status
          type: string
        type:
          const: message
          title: Type
          type: string
        phase:
          anyOf:
          - enum:
            - commentary
            - final_answer
            type: string
          - type: 'null'
          default: null
          title: Phase
      required:
      - id
      - content
      - role
      - status
      - type
      title: ResponseOutputMessage
      type: object
    ResponseOutputText:
      additionalProperties: true
      description: 'A text content part of an output message. `annotations` carries the URL

        citations grounding the answer.'
      properties:
        annotations:
          items:
            $ref: '#/components/schemas/AnnotationURLCitation'
          title: Annotations
          type: array
        text:
          title: Text
          type: string
        type:
          const: output_text
          title: Type
          type: string
        logprobs:
          anyOf:
          - items:
              $ref: '#/components/schemas/openai__types__responses__response_output_text__Logprob'
            type: array
          - type: 'null'
          default: null
          title: Logprobs
      required:
      - annotations
      - text
      - type
      title: ResponseOutputText
      type: object
    ResponseOutputTextAnnotationAddedEvent:
      additionalProperties: true
      properties:
        annotation:
          $ref: '#/components/schemas/AnnotationURLCitation'
        annotation_index:
          title: Annotation Index
          type: integer
        content_index:
          title: Content Index
          type: integer
        item_id:
          title: Item Id
          type: string
        output_index:
          title: Output Index
          type: integer
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.output_text.annotation.added
          title: Type
          type: string
      required:
      - annotation
      - annotation_index
      - content_index
      - item_id
      - output_index
      - sequence_number
      - type
      title: ResponseOutputTextAnnotationAddedEvent
      type: object
    ResponseReasoningConfig:
      description: Reasoning configuration (OpenAI-compatible subset).
      properties:
        effort:
          anyOf:
          - enum:
            - low
            - medium
            - high
            type: string
          - type: 'null'
          default: null
          description: Controls how much research is performed, trading response time for answer quality. Defaults
            to `medium` when omitted.
          examples:
          - high
          title: Effort
      title: ResponseReasoningConfig
      type: object
    ResponseStreamEvent:
      anyOf:
      - $ref: '#/components/schemas/ResponseCreatedEvent'
      - $ref: '#/components/schemas/ResponseInProgressEvent'
      - $ref: '#/components/schemas/ResponseOutputItemAddedEvent'
      - $ref: '#/components/schemas/ResponseContentPartAddedEvent'
      - $ref: '#/components/schemas/ResponseTextDeltaEvent'
      - $ref: '#/components/schemas/ResponseTextDoneEvent'
      - $ref: '#/components/schemas/ResponseOutputTextAnnotationAddedEvent'
      - $ref: '#/components/schemas/ResponseContentPartDoneEvent'
      - $ref: '#/components/schemas/ResponseOutputItemDoneEvent'
      - $ref: '#/components/schemas/ResponseCompletedEvent'
      - $ref: '#/components/schemas/ResponseFailedEvent'
      - $ref: '#/components/schemas/ResponseIncompleteEvent'
      description: An event in the Responses API SSE stream; `type` identifies the event.
      title: ResponseStreamEvent
    ResponseTextConfig:
      additionalProperties: true
      description: 'Text output configuration. By default the response is plain text; for

        structured output set `format` to

        `{"type": "json_schema", "name": ..., "schema": {...}}`. The `json_object`

        format is accepted for compatibility but produces plain text.'
      properties:
        format:
          anyOf:
          - $ref: '#/components/schemas/ResponseFormatText'
          - $ref: '#/components/schemas/ResponseFormatTextJSONSchemaConfig'
          - $ref: '#/components/schemas/ResponseFormatJSONObject'
          - type: 'null'
          default: null
          title: Format
        verbosity:
          anyOf:
          - enum:
            - low
            - medium
            - high
            type: string
          - type: 'null'
          default: null
          title: Verbosity
      title: ResponseTextConfig
      type: object
    ResponseTextDeltaEvent:
      additionalProperties: true
      description: Emitted when there is an additional text delta.
      properties:
        content_index:
          title: Content Index
          type: integer
        delta:
          title: Delta
          type: string
        item_id:
          title: Item Id
          type: string
        logprobs:
          items:
            $ref: '#/components/schemas/openai__types__responses__response_text_delta_event__Logprob'
          title: Logprobs
          type: array
        output_index:
          title: Output Index
          type: integer
        sequence_number:
          title: Sequence Number
          type: integer
        type:
          const: response.output_text.delta
          title: Type
          type: string
      required:
      - content_index
      - delta
      - item_id
      - logprobs
      - output_index
      - sequence_number
      - type
      title: ResponseTextDeltaEvent
      type: object
    ResponseTextDoneEvent:
      additionalProperties: true
      description: Emitted when text content is finalized.
      properties:
        content_index:
          title: Content Index
          type: integer
        item_id:
          title: Item Id
          type: string
        logprobs:
          items:
            $ref: '#/components/schemas/openai__types__responses__response_text_done_event__Logprob'
          title: Logprobs
          type: array
        output_index:
          title: Output Index
          type: integer
        sequence_number:
          title: Seq

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# Full source: https://raw.githubusercontent.com/api-evangelist/parallel/refs/heads/main/openapi/parallel-responses-api-openapi.yml