diff --git a/src/renderer/src/config/models/__tests__/reasoning.test.ts b/src/renderer/src/config/models/__tests__/reasoning.test.ts
index 56f9cd0b60..0f58be4ef0 100644
--- a/src/renderer/src/config/models/__tests__/reasoning.test.ts
+++ b/src/renderer/src/config/models/__tests__/reasoning.test.ts
@@ -745,7 +745,7 @@ describe('getThinkModelType - Comprehensive Coverage', () => {
     })
 
     it('should return doubao_after_251015 for Doubao-Seed-1.8 models', () => {
-      expect(getThinkModelType(createModel({ id: 'doubao-seed-1-8-251215' }))).toBe('doubao_after_251015')
+      expect(getThinkModelType(createModel({ id: 'doubao-seed-1-8-251228' }))).toBe('doubao_after_251015')
       expect(getThinkModelType(createModel({ id: 'doubao-seed-1.8' }))).toBe('doubao_after_251015')
     })
 
@@ -879,7 +879,7 @@ describe('getThinkModelType - Comprehensive Coverage', () => {
       // auto > after_251015 > no_auto
       expect(getThinkModelType(createModel({ id: 'doubao-seed-1.6' }))).toBe('doubao')
       expect(getThinkModelType(createModel({ id: 'doubao-seed-1-6-251015' }))).toBe('doubao_after_251015')
-      expect(getThinkModelType(createModel({ id: 'doubao-seed-1-8-251215' }))).toBe('doubao_after_251015')
+      expect(getThinkModelType(createModel({ id: 'doubao-seed-1-8-251228' }))).toBe('doubao_after_251015')
       expect(getThinkModelType(createModel({ id: 'doubao-1.5-thinking-vision-pro' }))).toBe('doubao_no_auto')
     })
 
diff --git a/src/renderer/src/config/models/default.ts b/src/renderer/src/config/models/default.ts
index 1223d0c92c..408c047639 100644
--- a/src/renderer/src/config/models/default.ts
+++ b/src/renderer/src/config/models/default.ts
@@ -771,7 +771,7 @@ export const SYSTEM_MODELS: Record<SystemProviderId | 'defaultModel', Model[]> =
   ],
   doubao: [
     {
-      id: 'doubao-seed-1-8-251215',
+      id: 'doubao-seed-1-8-251228',
       provider: 'doubao',
       name: 'Doubao-Seed-1.8',
       group: 'Doubao-Seed-1.8'