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

# Get evaluations compareRunId

> Requires scopes: eval:read



## OpenAPI

````yaml /api-reference/openapi.json get /api/evaluations/{id}/runs/{runId}/diff/{compareRunId}
openapi: 3.1.0
info:
  title: EvalGate API
  version: 3.7.6
  description: EvalGate API. See docs/api-contract.md for stability commitments.
servers:
  - url: https://evalgate.com
    description: Production
  - url: http://localhost:3000
    description: Local
security: []
paths:
  /api/evaluations/{id}/runs/{runId}/diff/{compareRunId}:
    get:
      tags:
        - evaluations
      summary: Get evaluations compareRunId
      description: 'Requires scopes: eval:read'
      operationId: get_evaluations_id_runs_runId_diff_compareRunId
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: integer
        - name: runId
          in: path
          required: true
          schema:
            type: integer
        - name: compareRunId
          in: path
          required: true
          schema:
            type: string
        - name: changedOnly
          in: query
          required: false
          schema:
            type: string
        - name: direction
          in: query
          required: false
          schema:
            type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/GetApiEvaluationsIdRunsRunIdDiffCompareRunIdResponse200ApplicationJson
        '400':
          $ref: '#/components/responses/ValidationError'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '409':
          $ref: '#/components/responses/Conflict'
        '429':
          $ref: '#/components/responses/RateLimited'
        '500':
          $ref: '#/components/responses/InternalError'
      security:
        - bearerAuth:
            - eval:read
components:
  schemas:
    GetApiEvaluationsIdRunsRunIdDiffCompareRunIdResponse200ApplicationJson:
      type: object
      properties:
        baselineRunId:
          type: number
        compareRunId:
          type: number
        diffs:
          type: array
          items:
            type: object
            properties:
              testCaseId:
                type: number
              testCaseName:
                type: string
              testCaseInput:
                type: string
              baselineVerdict:
                oneOf:
                  - type: 'null'
                  - type: string
                    enum:
                      - error
                  - type: string
                    enum:
                      - pending
                  - type: string
                    enum:
                      - failed
                  - type: string
                    enum:
                      - passed
              compareVerdict:
                oneOf:
                  - type: 'null'
                  - type: string
                    enum:
                      - error
                  - type: string
                    enum:
                      - pending
                  - type: string
                    enum:
                      - failed
                  - type: string
                    enum:
                      - passed
              verdictChanged:
                type: boolean
              changeDirection:
                oneOf:
                  - type: string
                    enum:
                      - removed
                  - type: string
                    enum:
                      - new
                  - type: string
                    enum:
                      - unchanged
                  - type: string
                    enum:
                      - improved
                  - type: string
                    enum:
                      - regressed
              baselineScore:
                oneOf:
                  - type: 'null'
                  - type: number
              compareScore:
                oneOf:
                  - type: 'null'
                  - type: number
              scoreDelta:
                oneOf:
                  - type: 'null'
                  - type: number
              scoreComparisonStatus:
                oneOf:
                  - type: string
                    enum:
                      - not_comparable
                  - type: string
                    enum:
                      - exact_comparable
                  - type: string
                    enum:
                      - calibrated_comparable
                  - type: string
                    enum:
                      - trend_discontinuity
              scoreComparisonReasons:
                type: array
                items:
                  type: string
              scoreComparisonValueBasis:
                oneOf:
                  - type: 'null'
                  - type: string
                    enum:
                      - raw_score
                  - type: string
                    enum:
                      - calibrated_judge_score
              baselineOutput:
                oneOf:
                  - type: 'null'
                  - type: string
              compareOutput:
                oneOf:
                  - type: 'null'
                  - type: string
            additionalProperties: false
            required:
              - testCaseId
              - testCaseName
              - testCaseInput
              - baselineVerdict
              - compareVerdict
              - verdictChanged
              - changeDirection
              - baselineScore
              - compareScore
              - scoreDelta
              - scoreComparisonStatus
              - scoreComparisonReasons
              - scoreComparisonValueBasis
              - baselineOutput
              - compareOutput
        summary:
          type: object
          properties:
            improved:
              type: number
            regressed:
              type: number
            unchanged:
              type: number
            newCases:
              type: number
            removedCases:
              type: number
            netDelta:
              type: number
            baselinePassRate:
              type: number
            comparePassRate:
              type: number
            passRateDelta:
              type: number
          additionalProperties: false
          required:
            - improved
            - regressed
            - unchanged
            - newCases
            - removedCases
            - netDelta
            - baselinePassRate
            - comparePassRate
            - passRateDelta
      additionalProperties: false
      required:
        - baselineRunId
        - compareRunId
        - diffs
        - summary
    ApiError:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              enum:
                - UNAUTHORIZED
                - FORBIDDEN
                - NOT_FOUND
                - VALIDATION_ERROR
                - RATE_LIMITED
                - CONFLICT
                - INTERNAL_ERROR
                - SERVICE_UNAVAILABLE
                - QUOTA_EXCEEDED
                - NO_ORG_MEMBERSHIP
                - CROSS_ORG_REFERENCE
                - INCOMPLETE
                - MALFORMED
            message:
              type: string
            details: {}
            requestId:
              type: string
              format: uuid
          required:
            - code
            - message
      required:
        - error
  responses:
    ValidationError:
      description: Validation error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    Unauthorized:
      description: Unauthorized
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    Forbidden:
      description: Forbidden
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    Conflict:
      description: Conflict
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    RateLimited:
      description: Rate limit exceeded
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
    InternalError:
      description: Internal server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ApiError'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key or Session Token

````