diff --git a/src/main/knowledge/reranker/BaseReranker.ts b/src/main/knowledge/reranker/BaseReranker.ts
index 9483cb3d4e..1e321e2d86 100644
--- a/src/main/knowledge/reranker/BaseReranker.ts
+++ b/src/main/knowledge/reranker/BaseReranker.ts
@@ -80,6 +80,7 @@ export default abstract class BaseReranker {
       message: error.message,
       status: error.response?.status,
       statusText: error.response?.statusText,
+      responseBody: error.response?.body, // Include the actual API error response
       requestBody: requestBody
     }
     return JSON.stringify(errorDetails, null, 2)
diff --git a/src/main/knowledge/reranker/GeneralReranker.ts b/src/main/knowledge/reranker/GeneralReranker.ts
index e4b3503606..e3ac5e8c21 100644
--- a/src/main/knowledge/reranker/GeneralReranker.ts
+++ b/src/main/knowledge/reranker/GeneralReranker.ts
@@ -2,6 +2,15 @@ import { KnowledgeBaseParams, KnowledgeSearchResult } from '@types'
 import { net } from 'electron'
 
 import BaseReranker from './BaseReranker'
+
+interface RerankError extends Error {
+  response?: {
+    status: number
+    statusText: string
+    body?: unknown
+  }
+}
+
 export default class GeneralReranker extends BaseReranker {
   constructor(base: KnowledgeBaseParams) {
     super(base)
@@ -17,7 +26,30 @@ export default class GeneralReranker extends BaseReranker {
       })
 
       if (!response.ok) {
-        throw new Error(`HTTP ${response.status}: ${response.statusText}`)
+        // Read the response body to get detailed error information
+        // Clone the response to avoid consuming the body multiple times
+        const clonedResponse = response.clone()
+        let errorBody: unknown
+
+        try {
+          errorBody = await clonedResponse.json()
+        } catch {
+          // If response body is not JSON, try to read as text
+          try {
+            errorBody = await response.text()
+          } catch {
+            errorBody = null
+          }
+        }
+
+        const error = new Error(`HTTP ${response.status}: ${response.statusText}`) as RerankError
+        // Attach response details to the error object for formatErrorMessage
+        error.response = {
+          status: response.status,
+          statusText: response.statusText,
+          body: errorBody
+        }
+        throw error
       }
 
       const data = await response.json()