oAI/Providers/OpenRouterModels.swift

@@ -485,10 +485,9 @@ struct OpenRouterImageGenerationResponse: Codable {
 
 struct OpenRouterErrorResponse: Codable {
     let error: ErrorDetail
-    
+
     struct ErrorDetail: Codable {
         let message: String
         let type: String?
-        let code: String?
     }
 }

oAI/Providers/OpenRouterProvider.swift

@@ -347,8 +347,16 @@ class OpenRouterProvider: AIProvider {
                     }
 
                     guard httpResponse.statusCode == 200 else {
-                        Log.api.error("OpenRouter stream HTTP \(httpResponse.statusCode)")
-                        continuation.finish(throwing: ProviderError.unknown("HTTP \(httpResponse.statusCode)"))
+                        var errorBody = ""
+                        for try await line in bytes.lines { errorBody += line }
+                        if let errorData = errorBody.data(using: .utf8),
+                           let errorResponse = try? JSONDecoder().decode(OpenRouterErrorResponse.self, from: errorData) {
+                            Log.api.error("OpenRouter stream HTTP \(httpResponse.statusCode): \(errorResponse.error.message)")
+                            continuation.finish(throwing: ProviderError.unknown(errorResponse.error.message))
+                        } else {
+                            Log.api.error("OpenRouter stream HTTP \(httpResponse.statusCode)")
+                            continuation.finish(throwing: ProviderError.unknown("HTTP \(httpResponse.statusCode)"))
+                        }
                         return
                     }