diff --git a/app/components/DeepResearch/DeepResearch.vue b/app/components/DeepResearch/DeepResearch.vue
index 4cf8b2f..3b6adca 100644
--- a/app/components/DeepResearch/DeepResearch.vue
+++ b/app/components/DeepResearch/DeepResearch.vue
@@ -272,6 +272,7 @@
         retryNode,
         currentDepth,
         breadth,
+        aiConfig: config.ai,
         maxDepth: form.value.depth,
         languageCode: locale.value,
         searchLanguageCode: config.webSearch.searchLanguage,
diff --git a/app/components/LangSwitcher.vue b/app/components/LangSwitcher.vue
index 21ffb23..f339c78 100644
--- a/app/components/LangSwitcher.vue
+++ b/app/components/LangSwitcher.vue
@@ -1,9 +1,6 @@
 <script setup lang="ts">
   const { locale: globalLocale, availableLocales, t, setLocale } = useI18n()
 
-  export type Locale = (typeof globalLocale)['value']
-  export type AvailableLocales = Locale[]
-
   const props = defineProps<{
     /** Override display locale */
     value?: Locale
diff --git a/app/components/ResearchFeedback.vue b/app/components/ResearchFeedback.vue
index f4f24e2..dcf930a 100644
--- a/app/components/ResearchFeedback.vue
+++ b/app/components/ResearchFeedback.vue
@@ -19,7 +19,7 @@
   }>()
 
   const { t, locale } = useI18n()
-  const { showConfigManager, isConfigValid } = storeToRefs(useConfigStore())
+  const { showConfigManager, isConfigValid, config } = storeToRefs(useConfigStore())
   const toast = useToast()
 
   const reasoningContent = ref('')
@@ -57,6 +57,7 @@
         query: form.value.query,
         numQuestions: form.value.numQuestions,
         language: t('language', {}, { locale: locale.value }),
+        aiConfig: config.value.ai,
       })) {
         if (f.type === 'reasoning') {
           reasoningContent.value += f.delta
diff --git a/app/components/ResearchReport.vue b/app/components/ResearchReport.vue
index 61406ed..46ffeec 100644
--- a/app/components/ResearchReport.vue
+++ b/app/components/ResearchReport.vue
@@ -8,6 +8,7 @@
   } from '~/constants/injection-keys'
 
   const { t, locale } = useI18n()
+  const { config } = storeToRefs(useConfigStore())
   const toast = useToast()
 
   const error = ref('')
@@ -156,6 +157,7 @@
         prompt: getCombinedQuery(form.value, feedback.value),
         language: t('language', {}, { locale: locale.value }),
         learnings,
+        aiConfig: config.value.ai,
       })
       for await (const chunk of fullStream) {
         if (chunk.type === 'reasoning') {
diff --git a/app/stores/config.ts b/app/stores/config.ts
index 946d8e6..7794bd2 100644
--- a/app/stores/config.ts
+++ b/app/stores/config.ts
@@ -1,5 +1,5 @@
 import { skipHydrate } from 'pinia'
-import type { Locale } from '@/components/LangSwitcher.vue'
+import { getApiBase } from '~~/shared/utils/ai-model'
 
 export type ConfigAiProvider =
   | 'openai-compatible'
@@ -71,25 +71,7 @@ export const useConfigStore = defineStore('config', () => {
   )
   const isConfigValid = computed(() => validateConfig(config.value))
 
-  const aiApiBase = computed(() => {
-    const { ai } = config.value
-    if (ai.provider === 'openrouter') {
-      return ai.apiBase || 'https://openrouter.ai/api/v1'
-    }
-    if (ai.provider === 'deepseek') {
-      return ai.apiBase || 'https://api.deepseek.com/v1'
-    }
-    if (ai.provider === 'ollama') {
-      return ai.apiBase || 'http://localhost:11434/v1'
-    }
-    if (ai.provider === 'siliconflow') {
-      return ai.apiBase || 'https://api.siliconflow.cn/v1'
-    }
-    if (ai.provider === 'infiniai') {
-      return ai.apiBase || 'https://cloud.infini-ai.com/maas/v1'
-    }
-    return ai.apiBase || 'https://api.openai.com/v1'
-  })
+  const aiApiBase = computed(() => getApiBase(config.value.ai))
   const webSearchApiBase = computed(() => {
     const { webSearch } = config.value
     if (webSearch.provider === 'tavily') {
diff --git a/lib/deep-research.ts b/lib/deep-research.ts
index 6add729..a2103ef 100644
--- a/lib/deep-research.ts
+++ b/lib/deep-research.ts
@@ -1,14 +1,12 @@
 import { streamText } from 'ai'
 import { z } from 'zod'
-import { parseStreamingJson, type DeepPartial } from '~~/utils/json'
+import { parseStreamingJson, type DeepPartial } from '~~/shared/utils/json'
 
 import { trimPrompt } from './ai/providers'
 import { languagePrompt, systemPrompt } from './prompt'
 import zodToJsonSchema from 'zod-to-json-schema'
-import { useAiModel } from '@/composables/useAiProvider'
-import type { Locale } from '@/components/LangSwitcher.vue'
 import type { DeepResearchNode } from '@/components/DeepResearch/DeepResearch.vue'
-import { throwAiError } from '~~/utils/errors'
+import { throwAiError } from '~~/shared/utils/errors'
 
 export type ResearchResult = {
   learnings: ProcessedSearchResult['learnings']
@@ -18,6 +16,7 @@ export interface WriteFinalReportParams {
   prompt: string
   learnings: ProcessedSearchResult['learnings']
   language: string
+  aiConfig: ConfigAi
 }
 
 // Used for streaming response
@@ -28,36 +27,36 @@ export type PartialProcessedSearchResult = DeepPartial<ProcessedSearchResult>
 
 export type ResearchStep =
   | {
-      type: 'generating_query'
-      result: PartialSearchQuery
-      nodeId: string
-      parentNodeId?: string
-    }
+    type: 'generating_query'
+    result: PartialSearchQuery
+    nodeId: string
+    parentNodeId?: string
+  }
   | { type: 'generating_query_reasoning'; delta: string; nodeId: string }
   | {
-      type: 'generated_query'
-      query: string
-      result: PartialSearchQuery
-      nodeId: string
-    }
+    type: 'generated_query'
+    query: string
+    result: PartialSearchQuery
+    nodeId: string
+  }
   | { type: 'searching'; query: string; nodeId: string }
   | { type: 'search_complete'; results: WebSearchResult[]; nodeId: string }
   | {
-      type: 'processing_serach_result'
-      query: string
-      result: PartialProcessedSearchResult
-      nodeId: string
-    }
+    type: 'processing_serach_result'
+    query: string
+    result: PartialProcessedSearchResult
+    nodeId: string
+  }
   | {
-      type: 'processing_serach_result_reasoning'
-      delta: string
-      nodeId: string
-    }
+    type: 'processing_serach_result_reasoning'
+    delta: string
+    nodeId: string
+  }
   | {
-      type: 'node_complete'
-      result?: ProcessedSearchResult
-      nodeId: string
-    }
+    type: 'node_complete'
+    result?: ProcessedSearchResult
+    nodeId: string
+  }
   | { type: 'error'; message: string; nodeId: string }
   | { type: 'complete'; learnings: ProcessedSearchResult['learnings'] }
 
@@ -80,6 +79,7 @@ export function generateSearchQueries({
   learnings,
   language,
   searchLanguage,
+  aiConfig,
 }: {
   query: string
   language: string
@@ -88,6 +88,7 @@ export function generateSearchQueries({
   learnings?: string[]
   /** Force the LLM to generate serp queries in a certain language */
   searchLanguage?: string
+  aiConfig: ConfigAi
 }) {
   const schema = z.object({
     queries: z
@@ -115,14 +116,14 @@ export function generateSearchQueries({
     `Given the following prompt from the user, generate a list of highly effective Google search queries to research the topic. Return a maximum of ${numQueries} queries, but feel free to return less if the original prompt is clear. Make sure each query is creative, unique and not similar to each other: <prompt>${query}</prompt>`,
     learnings
       ? `Here are some learnings from previous research, use them to generate more specific queries: ${learnings.join(
-          '\n',
-        )}`
+        '\n',
+      )}`
       : '',
     `You MUST respond in JSON matching this JSON schema: ${jsonSchema}`,
     lp,
   ].join('\n\n')
   return streamText({
-    model: useAiModel(),
+    model: getLanguageModel(aiConfig),
     system: systemPrompt(),
     prompt,
     onError({ error }) {
@@ -149,12 +150,14 @@ function processSearchResult({
   numLearnings = 5,
   numFollowUpQuestions = 3,
   language,
+  aiConfig,
 }: {
   query: string
   results: WebSearchResult[]
   language: string
   numLearnings?: number
   numFollowUpQuestions?: number
+  aiConfig: ConfigAi
 }) {
   const schema = z.object({
     learnings: z
@@ -194,7 +197,7 @@ function processSearchResult({
   ].join('\n\n')
 
   return streamText({
-    model: useAiModel(),
+    model: getLanguageModel(aiConfig),
     system: systemPrompt(),
     prompt,
     onError({ error }) {
@@ -207,6 +210,7 @@ export function writeFinalReport({
   prompt,
   learnings,
   language,
+  aiConfig,
 }: WriteFinalReportParams) {
   const learningsString = trimPrompt(
     learnings
@@ -229,7 +233,7 @@ ${learning.learning}
   ].join('\n\n')
 
   return streamText({
-    model: useAiModel(),
+    model: getLanguageModel(aiConfig),
     system: systemPrompt(),
     prompt: _prompt,
     onError({ error }) {
@@ -247,6 +251,7 @@ export async function deepResearch({
   breadth,
   maxDepth,
   languageCode,
+  aiConfig,
   searchLanguageCode,
   learnings,
   onProgress,
@@ -259,6 +264,8 @@ export async function deepResearch({
   maxDepth: number
   /** The language of generated response */
   languageCode: Locale
+  /** The AI model configuration */
+  aiConfig: ConfigAi
   /** The language of SERP query */
   searchLanguageCode?: Locale
   /** Accumulated learnings from all nodes visited so far */
@@ -299,6 +306,7 @@ export async function deepResearch({
         numQueries: breadth,
         language,
         searchLanguage,
+        aiConfig,
       })
 
       for await (const chunk of parseStreamingJson(
@@ -370,7 +378,6 @@ export async function deepResearch({
           if (!searchQuery?.query) {
             return {
               learnings: [],
-              visitedUrls: [],
             }
           }
           onProgress({
@@ -404,6 +411,7 @@ export async function deepResearch({
               results,
               numFollowUpQuestions: nextBreadth,
               language,
+              aiConfig,
             })
             let searchResult: PartialProcessedSearchResult = {}
 
@@ -479,8 +487,8 @@ export async function deepResearch({
               const nextQuery = `
               Previous research goal: ${searchQuery.researchGoal}
               Follow-up research directions: ${searchResult.followUpQuestions
-                .map((q) => `\n${q}`)
-                .join('')}
+                  .map((q) => `\n${q}`)
+                  .join('')}
             `.trim()
 
               // Add concurrency by 1, and do next recursive search
@@ -495,6 +503,7 @@ export async function deepResearch({
                   currentDepth: nextDepth,
                   nodeId: searchQuery.nodeId,
                   languageCode,
+                  aiConfig,
                 })
                 return r
               } catch (error) {
diff --git a/lib/feedback.ts b/lib/feedback.ts
index 6473d29..30b1ae9 100644
--- a/lib/feedback.ts
+++ b/lib/feedback.ts
@@ -3,9 +3,9 @@ import { z } from 'zod'
 import { zodToJsonSchema } from 'zod-to-json-schema'
 
 import { languagePrompt, systemPrompt } from './prompt'
-import { useAiModel } from '~/composables/useAiProvider'
-import { parseStreamingJson, type DeepPartial } from '~~/utils/json'
-import { throwAiError } from '~~/utils/errors'
+import { parseStreamingJson, type DeepPartial } from '~~/shared/utils/json'
+import { throwAiError } from '~~/shared/utils/errors'
+import { getLanguageModel } from '~~/shared/utils/ai-model'
 
 type PartialFeedback = DeepPartial<z.infer<typeof feedbackTypeSchema>>
 
@@ -17,9 +17,11 @@ export function generateFeedback({
   query,
   language,
   numQuestions = 3,
+  aiConfig,
 }: {
   query: string
   language: string
+  aiConfig: ConfigAi
   numQuestions?: number
 }) {
   const schema = z.object({
@@ -36,7 +38,7 @@ export function generateFeedback({
   ].join('\n\n')
 
   const stream = streamText({
-    model: useAiModel(),
+    model: getLanguageModel(aiConfig),
     system: systemPrompt(),
     prompt,
     onError({ error }) {
diff --git a/shared/types/types.d.ts b/shared/types/types.d.ts
new file mode 100644
index 0000000..18b0710
--- /dev/null
+++ b/shared/types/types.d.ts
@@ -0,0 +1,4 @@
+import type { NuxtApp } from "#app";
+
+export type AvailableLocales = NuxtApp['$i18n']['availableLocales']
+export type Locale = AvailableLocales[number]
\ No newline at end of file
diff --git a/shared/utils/ai-model.ts b/shared/utils/ai-model.ts
new file mode 100644
index 0000000..327a90d
--- /dev/null
+++ b/shared/utils/ai-model.ts
@@ -0,0 +1,63 @@
+import { createDeepSeek } from "@ai-sdk/deepseek"
+import { createOpenAI } from "@ai-sdk/openai"
+import { createOpenRouter } from "@openrouter/ai-sdk-provider"
+import { wrapLanguageModel, extractReasoningMiddleware } from "ai"
+import type { LanguageModelV1 } from "ai"
+
+export function getLanguageModel(config: ConfigAi) {
+  const apiBase = getApiBase(config)
+  let model: LanguageModelV1
+
+  if (config.provider === 'openrouter') {
+    const openRouter = createOpenRouter({
+      apiKey: config.apiKey,
+      baseURL: apiBase,
+    })
+    model = openRouter(config.model, {
+      includeReasoning: true,
+    })
+  } else if (
+    config.provider === 'deepseek' ||
+    config.provider === 'siliconflow' ||
+    config.provider === 'infiniai' ||
+    // Special case if model name includes 'deepseek'
+    // This ensures compatibilty with providers like Siliconflow
+    config.model?.toLowerCase().includes('deepseek')
+  ) {
+    const deepSeek = createDeepSeek({
+      apiKey: config.apiKey,
+      baseURL: apiBase,
+    })
+    model = deepSeek(config.model)
+  } else {
+    const openai = createOpenAI({
+      apiKey: config.apiKey,
+      baseURL: apiBase,
+    })
+    model = openai(config.model)
+  }
+
+  return wrapLanguageModel({
+    model,
+    middleware: extractReasoningMiddleware({ tagName: 'think' }),
+  })
+}
+
+export function getApiBase(config: ConfigAi) {
+  if (config.provider === 'openrouter') {
+    return config.apiBase || 'https://openrouter.ai/api/v1'
+  }
+  if (config.provider === 'deepseek') {
+    return config.apiBase || 'https://api.deepseek.com/v1'
+  }
+  if (config.provider === 'ollama') {
+    return config.apiBase || 'http://localhost:11434/v1'
+  }
+  if (config.provider === 'siliconflow') {
+    return config.apiBase || 'https://api.siliconflow.cn/v1'
+  }
+  if (config.provider === 'infiniai') {
+    return config.apiBase || 'https://cloud.infini-ai.com/maas/v1'
+  }
+  return config.apiBase || 'https://api.openai.com/v1'
+}
\ No newline at end of file
diff --git a/utils/errors.ts b/shared/utils/errors.ts
similarity index 100%
rename from utils/errors.ts
rename to shared/utils/errors.ts
diff --git a/utils/json.ts b/shared/utils/json.ts
similarity index 100%
rename from utils/json.ts
rename to shared/utils/json.ts