diff --git a/server/src/ai/ai.service.test.ts b/server/src/ai/ai.service.test.ts
index 663c072..db8364b 100644
--- a/server/src/ai/ai.service.test.ts
+++ b/server/src/ai/ai.service.test.ts
@@ -111,7 +111,7 @@ describe('AiService', () => {
     expect(requestBody).not.toHaveProperty('frequency_penalty');
   });
 
-  it('uses the faster Moonshot text model for Kimi K2 text-only report prompts', async () => {
+  it('uses the faster Kimi turbo text model for Kimi K2 text-only report prompts', async () => {
     const fetchMock = vi.fn().mockResolvedValue(
       new Response(JSON.stringify({ choices: [{ message: { content: '{"reply":"已完善"}' } }] }), { status: 200 }),
     );
@@ -125,9 +125,9 @@ describe('AiService', () => {
     const requestBody = JSON.parse(String(fetchMock.mock.calls[0][1]?.body));
     expect(requestBody).toMatchObject({
       messages: [{ role: 'user', content: '请继续完善手术步骤' }],
-      model: 'moonshot-v1-32k',
-      temperature: 0.3,
+      model: 'kimi-k2-turbo-preview',
     });
+    expect(requestBody).not.toHaveProperty('temperature');
   });
 
   it('keeps an image-capable Kimi model for image prompts and removes unsupported sampling options', async () => {
diff --git a/server/src/ai/ai.service.ts b/server/src/ai/ai.service.ts
index 6519cc6..1125e5c 100644
--- a/server/src/ai/ai.service.ts
+++ b/server/src/ai/ai.service.ts
@@ -12,7 +12,7 @@ interface AiProvider {
 const RETRYABLE_PROVIDER_STATUSES = new Set([429, 500, 502, 503, 504]);
 const DEFAULT_RETRY_DELAYS_MS = [600, 1200];
 const DEFAULT_PROVIDER_TIMEOUT_MS = 45_000;
-const DEFAULT_KIMI_TEXT_MODEL = 'moonshot-v1-32k';
+const DEFAULT_KIMI_TEXT_MODEL = 'kimi-k2-turbo-preview';
 const DEFAULT_KIMI_VISION_MODEL = 'kimi-k2.6';
 
 @Injectable()
diff --git a/server/src/demo/demo-defaults.ts b/server/src/demo/demo-defaults.ts
index a6eee03..9e6526f 100644
--- a/server/src/demo/demo-defaults.ts
+++ b/server/src/demo/demo-defaults.ts
@@ -20,7 +20,7 @@ export const DEMO_SYSTEM_SETTINGS = {
     kimi: {
       endpoint: 'https://api.moonshot.cn/v1',
       apiKey: DEMO_AI_API_KEY,
-      modelName: 'moonshot-v1-32k',
+      modelName: 'kimi-k2-turbo-preview',
     },
     deepseek: { endpoint: 'https://api.deepseek.com/v1', apiKey: '', modelName: 'deepseek-chat' },
     openai: { endpoint: 'https://api.openai.com/v1', apiKey: '', modelName: 'gpt-4o' },
diff --git a/server/src/settings/settings.service.ts b/server/src/settings/settings.service.ts
index dccc9bb..8c3a2bb 100644
--- a/server/src/settings/settings.service.ts
+++ b/server/src/settings/settings.service.ts
@@ -13,7 +13,7 @@ import { PrismaService } from '../prisma/prisma.service.js';
 import { systemSettingsSchema, type SystemSettingsInput } from './settings.schemas.js';
 
 const DEFAULT_AI_PROVIDERS = {
-  kimi: { endpoint: 'https://api.moonshot.cn/v1', apiKey: DEMO_SYSTEM_SETTINGS.aiProviders.kimi.apiKey, modelName: 'moonshot-v1-32k' },
+  kimi: { endpoint: 'https://api.moonshot.cn/v1', apiKey: DEMO_SYSTEM_SETTINGS.aiProviders.kimi.apiKey, modelName: 'kimi-k2-turbo-preview' },
   deepseek: { endpoint: 'https://api.deepseek.com/v1', apiKey: '', modelName: 'deepseek-chat' },
   openai: { endpoint: 'https://api.openai.com/v1', apiKey: '', modelName: 'gpt-4o' },
   custom: { endpoint: '', apiKey: '', modelName: '' },
diff --git a/src/pages/ReportEditor.tsx b/src/pages/ReportEditor.tsx
index 232509f..5e67ebb 100644
--- a/src/pages/ReportEditor.tsx
+++ b/src/pages/ReportEditor.tsx
@@ -1334,7 +1334,7 @@ export default function ReportEditor() {
     try {
       const settings = storage.get<SystemSettings>('systemSettings', {} as SystemSettings);
       const provider = settings.aiProviders?.[settings.activeAiProvider || 'kimi'];
-      const modelName = provider?.modelName || 'moonshot-v1-32k';
+      const modelName = provider?.modelName || 'kimi-k2-turbo-preview';
       let actualTargetId = aiTargetRegion;
       if (aiModifyEnabled && actualTargetId === 'none') {
         const availableRegions = checkAiRegions();
diff --git a/src/pages/SystemSettings.tsx b/src/pages/SystemSettings.tsx
index 2032e0e..c691861 100644
--- a/src/pages/SystemSettings.tsx
+++ b/src/pages/SystemSettings.tsx
@@ -96,7 +96,7 @@ export default function SystemSettings() {
         providers.kimi = {
           endpoint: (savedSettings as any).kimiApiEndpoint || providers.kimi.endpoint,
           apiKey: (savedSettings as any).kimiApiKey || '',
-          modelName: 'moonshot-v1-32k'
+          modelName: 'kimi-k2-turbo-preview'
         };
       }
       savedSettings.aiProviders = providers;
diff --git a/src/types.ts b/src/types.ts
index f4c78bd..450e4ae 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -112,7 +112,7 @@ export interface SystemSettings {
 }
 
 export const DEFAULT_AI_PROVIDERS: Record<string, AiProviderConfig> = {
-  kimi: { endpoint: 'https://api.moonshot.cn/v1', apiKey: '', modelName: 'moonshot-v1-32k' },
+  kimi: { endpoint: 'https://api.moonshot.cn/v1', apiKey: '', modelName: 'kimi-k2-turbo-preview' },
   deepseek: { endpoint: 'https://api.deepseek.com/v1', apiKey: '', modelName: 'deepseek-chat' },
   openai: { endpoint: 'https://api.openai.com/v1', apiKey: '', modelName: 'gpt-4o' },
   custom: { endpoint: '', apiKey: '', modelName: '' }