chore: update OpenAPI spec from monorepo (#241)

Co-authored-by: OpenRouter SDK Bot <sdk-bot@openrouter.ai>

.speakeasy/in.openapi.yaml

@@ -6381,6 +6381,54 @@ components:
       required:
         - id
       type: object
+    FusionServerTool_OpenRouter:
+      description: >-
+        OpenRouter built-in server tool: fans out the user prompt to a panel of analysis models, then asks a judge model
+        to summarize their collective output as structured JSON the outer model can synthesize from.
+      example:
+        parameters:
+          analysis_models:
+            - ~anthropic/claude-opus-latest
+            - ~openai/gpt-latest
+        type: openrouter:fusion
+      properties:
+        parameters:
+          $ref: '#/components/schemas/FusionServerToolConfig'
+        type:
+          enum:
+            - openrouter:fusion
+          type: string
+      required:
+        - type
+      type: object
+    FusionServerToolConfig:
+      description: Configuration for the openrouter:fusion server tool.
+      example:
+        analysis_models:
+          - ~anthropic/claude-opus-latest
+          - ~openai/gpt-latest
+      properties:
+        analysis_models:
+          description: >-
+            Slugs of models to run in parallel as the analysis panel. Each model receives the user prompt with
+            openrouter:web_search and openrouter:web_fetch enabled, then a judge model summarizes the collective output
+            into structured analysis JSON. Capped at 8 models to bound cost amplification. Defaults to the Quality
+            preset from /labs/fusion.
+          example:
+            - ~anthropic/claude-opus-latest
+            - ~openai/gpt-latest
+          items:
+            type: string
+          maxItems: 8
+          minItems: 1
+          type: array
+        model:
+          description: >-
+            Slug of the judge model that produces the structured analysis JSON. Defaults to the model used in the outer
+            API request.
+          example: ~anthropic/claude-opus-latest
+          type: string
+      type: object
     GenerationContentData:
       description: Stored prompt and completion content
       example:
@@ -14112,6 +14160,7 @@ components:
               - $ref: '#/components/schemas/ApplyPatchServerTool'
               - $ref: '#/components/schemas/CustomTool'
               - $ref: '#/components/schemas/DatetimeServerTool'
+              - $ref: '#/components/schemas/FusionServerTool_OpenRouter'
               - $ref: '#/components/schemas/ImageGenerationServerTool_OpenRouter'
               - $ref: '#/components/schemas/ChatSearchModelsServerTool'
               - $ref: '#/components/schemas/WebFetchServerTool'