diff --git a/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputFusionServerToolItem.g.cs b/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputFusionServerToolItem.g.cs
index 2e821d0c..eb598f51 100644
--- a/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputFusionServerToolItem.g.cs
+++ b/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputFusionServerToolItem.g.cs
@@ -5,7 +5,7 @@ namespace OpenRouter
 {
     /// <summary>
     /// An openrouter:fusion server tool output item<br/>
-    /// Example: {"arguments":"{\u0022prompt\u0022:\u0022Compare the leading approaches\u0022}","call_id":"call_fusion_abc123","id":"st_tmp_abc123","status":"completed","type":"openrouter:fusion"}
+    /// Example: {"id":"st_tmp_abc123","status":"completed","type":"openrouter:fusion"}
     /// </summary>
     public sealed partial class OutputFusionServerToolItem
     {
@@ -17,22 +17,6 @@ public sealed partial class OutputFusionServerToolItem
         [global::System.Text.Json.Serialization.JsonPropertyName("analysis")]
         public global::OpenRouter.FusionAnalysisResult? Analysis { get; set; }
 
-        /// <summary>
-        /// The raw tool-call arguments string as emitted by the model.<br/>
-        /// Example: {"prompt":"Compare the leading approaches"}
-        /// </summary>
-        /// <example>{"prompt":"Compare the leading approaches"}</example>
-        [global::System.Text.Json.Serialization.JsonPropertyName("arguments")]
-        public string? Arguments { get; set; }
-
-        /// <summary>
-        /// The model-generated tool call id from the originating turn.<br/>
-        /// Example: call_fusion_abc123
-        /// </summary>
-        /// <example>call_fusion_abc123</example>
-        [global::System.Text.Json.Serialization.JsonPropertyName("call_id")]
-        public string? CallId { get; set; }
-
         /// <summary>
         /// Error message when the fusion run did not produce an analysis result.
         /// </summary>
@@ -101,14 +85,6 @@ public sealed partial class OutputFusionServerToolItem
         /// Structured analysis produced by the fusion analyst model.<br/>
         /// Example: {"blind_spots":["No model considered the impact on existing API consumers."],"consensus":["All panel models agree the request is asking for a concise summary."],"contradictions":[{"stances":[{"model":"openai/gpt-5","stance":"Favors an incremental rollout."},{"model":"anthropic/claude-sonnet-4.5","stance":"Favors a single coordinated migration."}],"topic":"Recommended approach"}],"partial_coverage":[{"models":["openai/gpt-5"],"point":"Only one model addressed the rollback strategy."}],"unique_insights":[{"insight":"Highlighted a backwards-compatibility risk the other models missed.","model":"anthropic/claude-sonnet-4.5"}]}
         /// </param>
-        /// <param name="arguments">
-        /// The raw tool-call arguments string as emitted by the model.<br/>
-        /// Example: {"prompt":"Compare the leading approaches"}
-        /// </param>
-        /// <param name="callId">
-        /// The model-generated tool call id from the originating turn.<br/>
-        /// Example: call_fusion_abc123
-        /// </param>
         /// <param name="error">
         /// Error message when the fusion run did not produce an analysis result.
         /// </param>
@@ -132,8 +108,6 @@ public sealed partial class OutputFusionServerToolItem
         public OutputFusionServerToolItem(
             global::OpenRouter.ToolCallStatus status,
             global::OpenRouter.FusionAnalysisResult? analysis,
-            string? arguments,
-            string? callId,
             string? error,
             global::System.Collections.Generic.IList<global::OpenRouter.OutputFusionServerToolItemFailedModel>? failedModels,
             string? failureReason,
@@ -143,8 +117,6 @@ public OutputFusionServerToolItem(
             global::OpenRouter.OutputFusionServerToolItemType type)
         {
             this.Analysis = analysis;
-            this.Arguments = arguments;
-            this.CallId = callId;
             this.Error = error;
             this.FailedModels = failedModels;
             this.FailureReason = failureReason;
diff --git a/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputItems.g.cs b/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputItems.g.cs
index 729fe083..68a2787c 100644
--- a/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputItems.g.cs
+++ b/src/libs/OpenRouter/Generated/OpenRouter.Models.OutputItems.g.cs
@@ -1000,7 +1000,7 @@ public bool TryPickOpenrouterExperimentalSearchModels(
 
         /// <summary>
         /// An openrouter:fusion server tool output item<br/>
-        /// Example: {"arguments":"{\u0022prompt\u0022:\u0022Compare the leading approaches\u0022}","call_id":"call_fusion_abc123","id":"st_tmp_abc123","status":"completed","type":"openrouter:fusion"}
+        /// Example: {"id":"st_tmp_abc123","status":"completed","type":"openrouter:fusion"}
         /// </summary>
 #if NET6_0_OR_GREATER
         public global::OpenRouter.OutputFusionServerToolItem? OpenrouterFusion { get; init; }
diff --git a/src/libs/OpenRouter/openapi.yaml b/src/libs/OpenRouter/openapi.yaml
index 8067c49a..9344b1e2 100644
--- a/src/libs/OpenRouter/openapi.yaml
+++ b/src/libs/OpenRouter/openapi.yaml
@@ -33571,8 +33571,6 @@
       "OutputFusionServerToolItem": {
         "description": "An openrouter:fusion server tool output item",
         "example": {
-          "arguments": "{\"prompt\":\"Compare the leading approaches\"}",
-          "call_id": "call_fusion_abc123",
           "id": "st_tmp_abc123",
           "status": "completed",
           "type": "openrouter:fusion"
@@ -33581,22 +33579,6 @@
           "analysis": {
             "$ref": "#/components/schemas/FusionAnalysisResult"
           },
-          "arguments": {
-            "description": "The raw tool-call arguments string as emitted by the model.",
-            "example": "{\"prompt\":\"Compare the leading approaches\"}",
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "call_id": {
-            "description": "The model-generated tool call id from the originating turn.",
-            "example": "call_fusion_abc123",
-            "type": [
-              "string",
-              "null"
-            ]
-          },
           "error": {
             "description": "Error message when the fusion run did not produce an analysis result.",
             "type": "string"