diff --git a/packages/core/src/core/openaiContentGenerator/provider/dashscope.test.ts b/packages/core/src/core/openaiContentGenerator/provider/dashscope.test.ts
index 3ff250b059d..84acedd4d3d 100644
--- a/packages/core/src/core/openaiContentGenerator/provider/dashscope.test.ts
+++ b/packages/core/src/core/openaiContentGenerator/provider/dashscope.test.ts
@@ -17,6 +17,7 @@ import {
   DashScopeOpenAICompatibleProvider,
   selectDashScopeThinkingKnob,
 } from './dashscope.js';
+import { determineProvider } from '../index.js';
 import type { Config } from '../../../config/config.js';
 import type { ContentGeneratorConfig } from '../../contentGenerator.js';
 import { AuthType } from '../../contentGenerator.js';
@@ -246,6 +247,42 @@ describe('DashScopeOpenAICompatibleProvider', () => {
       expect(result).toBe(true);
     });
 
+    it('should return true for alicloudapi.com subdomain', () => {
+      const config = {
+        authType: AuthType.USE_OPENAI,
+        baseUrl: 'https://api-id.cn-hangzhou.alicloudapi.com/v1',
+      } as ContentGeneratorConfig;
+
+      const result =
+        DashScopeOpenAICompatibleProvider.isDashScopeProvider(config);
+      expect(result).toBe(true);
+      expect(mockDebugLogger.debug).toHaveBeenCalledWith(
+        'DashScope provider activated via alicloudapi origin: api-id.cn-hangzhou.alicloudapi.com',
+      );
+    });
+
+    it('should return true for port-bearing alicloudapi.com URL', () => {
+      const config = {
+        authType: AuthType.USE_OPENAI,
+        baseUrl: 'https://gateway.alicloudapi.com:8443/v1',
+      } as ContentGeneratorConfig;
+
+      const result =
+        DashScopeOpenAICompatibleProvider.isDashScopeProvider(config);
+      expect(result).toBe(true);
+    });
+
+    it('should return false for bare alicloudapi.com domain', () => {
+      const config = {
+        authType: AuthType.USE_OPENAI,
+        baseUrl: 'https://alicloudapi.com/v1',
+      } as ContentGeneratorConfig;
+
+      const result =
+        DashScopeOpenAICompatibleProvider.isDashScopeProvider(config);
+      expect(result).toBe(false);
+    });
+
     it('should return false for bare alibaba-inc.com domain', () => {
       const config = {
         authType: AuthType.USE_OPENAI,
@@ -276,6 +313,8 @@ describe('DashScopeOpenAICompatibleProvider', () => {
         'https://aliyun-inc.com.evil.com/v1',
         'https://not-token-plan.cn-beijing.maas.aliyuncs.com/v1',
         'https://token-plan.cn-beijing.maas.aliyuncs.com.evil.com/v1',
+        'https://notalicloudapi.com/v1',
+        'https://alicloudapi.com.evil.com/v1',
       ];
 
       configs.forEach((baseUrl) => {
@@ -440,6 +479,42 @@ describe('DashScopeOpenAICompatibleProvider', () => {
     });
   });
 
+  // Guards the full acceptance path end-to-end: an alicloudapi.com base URL
+  // must route through the DashScope provider so buildRequest injects the
+  // session-tracking metadata into the request body.
+  describe('determineProvider routing for alicloudapi.com', () => {
+    const alicloudapiConfig = {
+      authType: AuthType.USE_OPENAI,
+      baseUrl: 'https://api-id.cn-hangzhou.alicloudapi.com/v1',
+      model: 'qwen-max',
+    } as ContentGeneratorConfig;
+
+    it('routes alicloudapi.com base URLs to the DashScope provider', () => {
+      const routed = determineProvider(alicloudapiConfig, mockCliConfig);
+      expect(routed).toBeInstanceOf(DashScopeOpenAICompatibleProvider);
+    });
+
+    it('injects session-tracking metadata into the request body', () => {
+      const routed = determineProvider(
+        alicloudapiConfig,
+        mockCliConfig,
+      ) as DashScopeOpenAICompatibleProvider;
+
+      const result = routed.buildRequest(
+        {
+          model: 'qwen-max',
+          messages: [{ role: 'user', content: 'Hello!' }],
+        },
+        'test-prompt-id',
+      );
+
+      expect(result.metadata).toEqual({
+        sessionId: 'test-session-id',
+        promptId: 'test-prompt-id',
+      });
+    });
+  });
+
   describe('buildHeaders', () => {
     it('should build DashScope-specific headers', () => {
       const headers = provider.buildHeaders();
diff --git a/packages/core/src/core/openaiContentGenerator/provider/dashscope.ts b/packages/core/src/core/openaiContentGenerator/provider/dashscope.ts
index d375990ba31..a41a1abeb6b 100644
--- a/packages/core/src/core/openaiContentGenerator/provider/dashscope.ts
+++ b/packages/core/src/core/openaiContentGenerator/provider/dashscope.ts
@@ -170,6 +170,7 @@ export class DashScopeOpenAICompatibleProvider extends DefaultOpenAICompatiblePr
    * Covers the official regional hosts (DASHSCOPE_REGIONAL_HOSTS),
    * Token Plan endpoints under token-plan.<region>.maas.aliyuncs.com,
    * internal Alibaba domains (*.alibaba-inc.com, *.aliyun-inc.com),
+   * Alibaba Cloud API Gateway domains (*.alicloudapi.com),
    * and proxy matches.
    *
    * Note: any *.alibaba-inc.com / *.aliyun-inc.com host is treated as a
@@ -217,6 +218,11 @@ export class DashScopeOpenAICompatibleProvider extends DefaultOpenAICompatiblePr
       (hostname.endsWith('.alibaba-inc.com') ||
         hostname.endsWith('.aliyun-inc.com'));
 
+    // Alibaba Cloud API Gateway domains proxying to DashScope-compatible
+    // APIs. Covers *.alicloudapi.com.
+    const isAliCloudApiOrigin =
+      hostname !== null && hostname.endsWith('.alicloudapi.com');
+
     // Check if proxy is configured and matches
     const normalizedProxyUrl = DASHSCOPE_PROXY_BASE_URL?.endsWith('/')
       ? DASHSCOPE_PROXY_BASE_URL.slice(0, -1)
@@ -232,6 +238,7 @@ export class DashScopeOpenAICompatibleProvider extends DefaultOpenAICompatiblePr
       !isDashscopeOrigin &&
       !isTokenPlanOrigin &&
       !isInternalOrigin &&
+      !isAliCloudApiOrigin &&
       !isProxyMatch
     ) {
       debugLogger.debug(
@@ -245,8 +252,18 @@ export class DashScopeOpenAICompatibleProvider extends DefaultOpenAICompatiblePr
       );
     }
 
+    if (isAliCloudApiOrigin) {
+      debugLogger.debug(
+        `DashScope provider activated via alicloudapi origin: ${hostname}`,
+      );
+    }
+
     return (
-      isDashscopeOrigin || isTokenPlanOrigin || isInternalOrigin || isProxyMatch
+      isDashscopeOrigin ||
+      isTokenPlanOrigin ||
+      isInternalOrigin ||
+      isAliCloudApiOrigin ||
+      isProxyMatch
     );
   }