diff --git a/web/app/components/workflow/nodes/_base/components/memory-config.tsx b/web/app/components/workflow/nodes/_base/components/memory-config.tsx
index 31ff34c89d..fa2f541210 100644
--- a/web/app/components/workflow/nodes/_base/components/memory-config.tsx
+++ b/web/app/components/workflow/nodes/_base/components/memory-config.tsx
@@ -133,7 +133,7 @@ const MemoryConfig: FC<Props> = ({
             <div className='flex items-center h-8 space-x-2'>
               <Slider
                 className='w-[144px]'
-                value={payload.window?.size as number}
+                value={(payload.window?.size || WINDOW_SIZE_DEFAULT) as number}
                 min={WINDOW_SIZE_MIN}
                 max={WINDOW_SIZE_MAX}
                 step={1}
@@ -141,7 +141,7 @@ const MemoryConfig: FC<Props> = ({
                 disabled={readonly}
               />
               <input
-                value={(payload.window?.size || '') as number}
+                value={(payload.window?.size || WINDOW_SIZE_DEFAULT) as number}
                 className='shrink-0 block ml-4 pl-3 w-12 h-8 appearance-none outline-none rounded-lg bg-gray-100 text-[13px] text-gra-900'
                 type='number'
                 min={WINDOW_SIZE_MIN}
diff --git a/web/app/components/workflow/nodes/question-classifier/components/advanced-setting.tsx b/web/app/components/workflow/nodes/question-classifier/components/advanced-setting.tsx
index 5b5170fb84..3a9e294399 100644
--- a/web/app/components/workflow/nodes/question-classifier/components/advanced-setting.tsx
+++ b/web/app/components/workflow/nodes/question-classifier/components/advanced-setting.tsx
@@ -10,6 +10,7 @@ const i18nPrefix = 'workflow.nodes.questionClassifiers'
 type Props = {
   instruction: string
   onInstructionChange: (instruction: string) => void
+  hideMemorySetting: boolean
   memory: Memory
   onMemoryChange: (memory: Memory) => void
 }
@@ -17,6 +18,7 @@ type Props = {
 const AdvancedSetting: FC<Props> = ({
   instruction,
   onInstructionChange,
+  hideMemorySetting,
   memory,
   onMemoryChange,
 }) => {
@@ -37,13 +39,15 @@ const AdvancedSetting: FC<Props> = ({
           </div>
         )}
       />
-      <MemoryConfig
-        className='mt-4'
-        readonly={false}
-        payload={memory}
-        onChange={onMemoryChange}
-        canSetRoleName={false}
-      />
+      {!hideMemorySetting && (
+        <MemoryConfig
+          className='mt-4'
+          readonly={false}
+          payload={memory}
+          onChange={onMemoryChange}
+          canSetRoleName={false}
+        />
+      )}
     </>
   )
 }
diff --git a/web/app/components/workflow/nodes/question-classifier/panel.tsx b/web/app/components/workflow/nodes/question-classifier/panel.tsx
index 52919ad885..95bafb0ac8 100644
--- a/web/app/components/workflow/nodes/question-classifier/panel.tsx
+++ b/web/app/components/workflow/nodes/question-classifier/panel.tsx
@@ -24,6 +24,7 @@ const Panel: FC<NodePanelProps<QuestionClassifierNodeType>> = ({
   const {
     inputs,
     handleModelChanged,
+    isChatModel,
     handleCompletionParamsChange,
     handleQueryVarChange,
     handleTopicsChange,
@@ -86,6 +87,7 @@ const Panel: FC<NodePanelProps<QuestionClassifierNodeType>> = ({
           supportFold
         >
           <AdvancedSetting
+            hideMemorySetting={!isChatModel}
             instruction={inputs.instruction}
             onInstructionChange={handleInstructionChange}
             memory={inputs.memory}
diff --git a/web/app/components/workflow/nodes/question-classifier/use-config.ts b/web/app/components/workflow/nodes/question-classifier/use-config.ts
index 07106e208f..0e2de8005e 100644
--- a/web/app/components/workflow/nodes/question-classifier/use-config.ts
+++ b/web/app/components/workflow/nodes/question-classifier/use-config.ts
@@ -28,6 +28,8 @@ const useConfig = (id: string, payload: QuestionClassifierNodeType) => {
   } = useModelListAndDefaultModelAndCurrentProviderAndModel(1)
 
   const model = inputs.model
+  const modelMode = inputs.model?.mode
+  const isChatModel = modelMode === 'chat'
 
   const handleModelChanged = useCallback((model: { provider: string; modelId: string; mode?: string }) => {
     const newInputs = produce(inputRef.current, (draft) => {
@@ -133,6 +135,7 @@ const useConfig = (id: string, payload: QuestionClassifierNodeType) => {
   return {
     inputs,
     handleModelChanged,
+    isChatModel,
     handleCompletionParamsChange,
     handleQueryVarChange,
     filterVar,