diff --git a/src/core/llm/openai-message-adapter.ts b/src/core/llm/openai-message-adapter.ts
index 78251cb..d4b0347 100644
--- a/src/core/llm/openai-message-adapter.ts
+++ b/src/core/llm/openai-message-adapter.ts
@@ -49,7 +49,8 @@ export class OpenAIMessageAdapter {
   async streamResponse(
     client: OpenAI,
     request: LLMRequestStreaming,
-    options?: LLMOptions,
+		options?: LLMOptions,
+		extraParams?: Record<string, any>,
   ): Promise<AsyncIterable<LLMResponseStreaming>> {
     const stream = await client.chat.completions.create(
       {
@@ -66,7 +67,8 @@ export class OpenAIMessageAdapter {
         stream: true,
         stream_options: {
           include_usage: true,
-        },
+				},
+				...extraParams,
       },
       {
         signal: options?.signal,
diff --git a/src/lang/helpers.ts b/src/lang/helpers.ts
index 9abbc5a..5ef0852 100644
--- a/src/lang/helpers.ts
+++ b/src/lang/helpers.ts
@@ -68,7 +68,7 @@ export function t(str: string, params?: Record<string, any>): any {
 	}
 
 	const path = str.split('.');
-	let result = locale || en;
+	let result: any = locale || en;
 
 	for (const key of path) {
 		result = result[key] || (en && en[key]);
diff --git a/src/settings/components/ModelProviderSettings.tsx b/src/settings/components/ModelProviderSettings.tsx
index fe526e9..1806139 100644
--- a/src/settings/components/ModelProviderSettings.tsx
+++ b/src/settings/components/ModelProviderSettings.tsx
@@ -397,7 +397,7 @@ const CustomProviderSettings: React.FC<CustomProviderSettingsProps> = ({ plugin,
 			{/* 模型选择区域 */}
 			<div className="model-selection-section">
 				<div className="model-selection-header">
-					<h2 className="section-title">{t("settings.ModelProvider.modelSelection")}</h2>
+					<h2 className="section-title">{t("settings.ModelProvider.modelSelection")}:</h2>
 					<button 
 						className="one-click-config-btn"
 						onClick={handleOneClickConfig}
diff --git a/src/types/settings.test.ts b/src/types/settings.test.ts
index 25f8bdf..646d61b 100644
--- a/src/types/settings.test.ts
+++ b/src/types/settings.test.ts
@@ -9,6 +9,7 @@ describe('parseSmartCopilotSettings', () => {
 		expect(result).toEqual({
 			version: 0.4,
 			activeModels: DEFAULT_MODELS,
+			activeProviderTab: 'Infio',
 			infioApiKey: '',
 			openAIApiKey: '',
 			anthropicApiKey: '',
@@ -25,13 +26,13 @@ describe('parseSmartCopilotSettings', () => {
 			chatModelId: '',
 			mcpEnabled: false,
 			collectedChatModels: [],
-			chatModelProvider: 'OpenRouter',
+			chatModelProvider: 'Infio',
 			applyModelId: '',
-			applyModelProvider: 'OpenRouter',
+			applyModelProvider: 'Infio',
 			embeddingModelId: '',
-			embeddingModelProvider: 'Google',
+			embeddingModelProvider: 'Infio',
 			experimentalDiffStrategy: false,
-			defaultProvider: 'OpenRouter',
+			defaultProvider: 'Infio',
 			alibabaQwenProvider: {
 				name: 'AlibabaQwen',
 				apiKey: '',
@@ -196,6 +197,7 @@ describe('settings migration', () => {
 		expect(result).toEqual({
 			version: 0.4,
 			activeModels: DEFAULT_MODELS,
+			activeProviderTab: 'Infio',
 			infioApiKey: '',
 			openAIApiKey: '',
 			anthropicApiKey: '',
@@ -212,13 +214,13 @@ describe('settings migration', () => {
 			collectedChatModels: [],
 			chatModelId: '',
 			mcpEnabled: false,
-			chatModelProvider: 'OpenRouter',
+			chatModelProvider: 'Infio',
 			applyModelId: '',
-			applyModelProvider: 'OpenRouter',
+			applyModelProvider: 'Infio',
 			embeddingModelId: '',
-			embeddingModelProvider: 'Google',
+			embeddingModelProvider: 'Infio',
 			experimentalDiffStrategy: false,
-			defaultProvider: 'OpenRouter',
+			defaultProvider: 'Infio',
 			alibabaQwenProvider: {
 				name: 'AlibabaQwen',
 				apiKey: '',
diff --git a/src/types/settings.ts b/src/types/settings.ts
index 1146927..578b3d3 100644
--- a/src/types/settings.ts
+++ b/src/types/settings.ts
@@ -203,12 +203,12 @@ export const triggerSchema = z.object({
 
 const FilesSearchSettingsSchema = z.object({
 	method: z.enum(['match', 'regex', 'semantic', 'auto']).catch('auto'),
-	regexBackend: z.enum(['coreplugin', 'ripgrep']).catch('ripgrep'),
+	regexBackend: z.enum(['coreplugin', 'ripgrep']).catch('coreplugin'),
 	matchBackend: z.enum(['omnisearch', 'coreplugin']).catch('coreplugin'),
 	ripgrepPath: z.string().catch(''),
 }).catch({
 	method: 'auto',
-	regexBackend: 'ripgrep',
+	regexBackend: 'coreplugin',
 	matchBackend: 'coreplugin',
 	ripgrepPath: '',
 });