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

# Update a model router

> Update an existing model router's information (Enterprise only)



## OpenAPI

````yaml /swagger/5.12/ai-studio-swagger.yml patch /model-routers/{id}
openapi: 3.0.1
info:
  title: Midsommar API
  description: This is the API for the Midsommar user and group management system.
  termsOfService: http://swagger.io/terms/
  contact:
    name: API Support
    url: http://www.swagger.io/support
    email: support@swagger.io
  license:
    name: Apache 2.0
    url: http://www.apache.org/licenses/LICENSE-2.0.html
  version: '1.0'
servers:
  - url: //localhost:8080/api/v1
security: []
paths:
  /model-routers/{id}:
    patch:
      tags:
        - model-routers
      summary: Update a model router
      description: Update an existing model router's information (Enterprise only)
      parameters:
        - name: id
          in: path
          description: Model Router ID
          required: true
          schema:
            type: integer
      requestBody:
        description: Updated model router information
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/api.ModelRouterInput'
        required: true
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/api.ErrorResponse'
        '402':
          description: Enterprise feature required
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/api.ErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/api.ErrorResponse'
      security:
        - BearerAuth: []
components:
  schemas:
    api.ModelRouterInput:
      type: object
      properties:
        data:
          type: object
          properties:
            attributes:
              type: object
              properties:
                active:
                  type: boolean
                api_compat:
                  type: string
                description:
                  type: string
                name:
                  type: string
                namespace:
                  type: string
                pools:
                  type: array
                  items:
                    $ref: '#/components/schemas/api.ModelPoolInput'
                slug:
                  type: string
            type:
              type: string
    api.ErrorResponse:
      type: object
      properties:
        errors:
          type: array
          items:
            type: object
            properties:
              detail:
                type: string
              title:
                type: string
      description: Error response model
    api.ModelPoolInput:
      type: object
      properties:
        model_pattern:
          type: string
        name:
          type: string
        priority:
          type: integer
        selection_algorithm:
          type: string
        vendors:
          type: array
          items:
            $ref: '#/components/schemas/api.PoolVendorInput'
    api.PoolVendorInput:
      type: object
      properties:
        active:
          type: boolean
        llm_id:
          type: integer
        mappings:
          type: array
          items:
            $ref: '#/components/schemas/api.ModelMappingInput'
        weight:
          type: integer
    api.ModelMappingInput:
      type: object
      properties:
        source_model:
          type: string
        target_model:
          type: string
  securitySchemes:
    BearerAuth:
      type: apiKey
      name: Authorization
      in: header

````