diff --git a/web/app/components/workflow/hooks/use-checklist.ts b/web/app/components/workflow/hooks/use-checklist.ts
index 838b325dbb..529f0ee6d8 100644
--- a/web/app/components/workflow/hooks/use-checklist.ts
+++ b/web/app/components/workflow/hooks/use-checklist.ts
@@ -53,6 +53,7 @@ import {
 } from '../hooks'
 import { getNodeUsedVars, isSpecialVar } from '../nodes/_base/components/variable/utils'
 import { IndexMethodEnum } from '../nodes/knowledge-base/types'
+import { getLLMModelIssue, isLLMModelProviderInstalled, LLMModelIssueCode } from '../nodes/llm/utils'
 import {
   useStore,
   useWorkflowStore,
@@ -223,7 +224,11 @@ export const useChecklist = (nodes: Node[], edges: Edge[]) => {
         else {
           if (node.data.type === BlockEnum.LLM) {
             const modelProvider = (node.data as CommonNodeType<{ model?: ModelConfig }>).model?.provider
-            if (modelProvider && !installedPluginIds.has(extractPluginId(modelProvider)))
+            const modelIssue = getLLMModelIssue({
+              modelProvider,
+              isModelProviderInstalled: isLLMModelProviderInstalled(modelProvider, installedPluginIds),
+            })
+            if (modelIssue === LLMModelIssueCode.providerPluginUnavailable)
               errorMessages.push(t('errorMsg.configureModel', { ns: 'workflow' }))
           }
 
@@ -469,7 +474,11 @@ export const useChecklistBeforePublish = () => {
 
       if (node.data.type === BlockEnum.LLM) {
         const modelProvider = (node.data as CommonNodeType<{ model?: ModelConfig }>).model?.provider
-        if (modelProvider && !installedPluginIds.has(extractPluginId(modelProvider))) {
+        const modelIssue = getLLMModelIssue({
+          modelProvider,
+          isModelProviderInstalled: isLLMModelProviderInstalled(modelProvider, installedPluginIds),
+        })
+        if (modelIssue === LLMModelIssueCode.providerPluginUnavailable) {
           notify({ type: 'error', message: `[${node.data.title}] ${t('errorMsg.configureModel', { ns: 'workflow' })}` })
           return false
         }
diff --git a/web/app/components/workflow/nodes/llm/default.ts b/web/app/components/workflow/nodes/llm/default.ts
index cdd5bfbe6a..bd6027ec21 100644
--- a/web/app/components/workflow/nodes/llm/default.ts
+++ b/web/app/components/workflow/nodes/llm/default.ts
@@ -4,6 +4,7 @@ import { genNodeMetaData } from '@/app/components/workflow/utils'
 // import { RETRIEVAL_OUTPUT_STRUCT } from '../../constants'
 import { AppModeEnum } from '@/types/app'
 import { BlockEnum, EditionType, PromptRole } from '../../types'
+import { getLLMModelIssue, LLMModelIssueCode } from './utils'
 
 const RETRIEVAL_OUTPUT_STRUCT = `{
   "content": "",
@@ -60,7 +61,8 @@ const nodeDefault: NodeDefault<LLMNodeType> = {
   },
   checkValid(payload: LLMNodeType, t: any) {
     let errorMessages = ''
-    if (!errorMessages && !payload.model.provider)
+    const modelIssue = getLLMModelIssue({ modelProvider: payload.model.provider })
+    if (!errorMessages && modelIssue === LLMModelIssueCode.providerRequired)
       errorMessages = t(`${i18nPrefix}.fieldRequired`, { ns: 'workflow', field: t(`${i18nPrefix}.fields.model`, { ns: 'workflow' }) })
 
     if (!errorMessages && !payload.memory) {
diff --git a/web/app/components/workflow/nodes/llm/panel.tsx b/web/app/components/workflow/nodes/llm/panel.tsx
index 9ed6e81e3f..b712ceca57 100644
--- a/web/app/components/workflow/nodes/llm/panel.tsx
+++ b/web/app/components/workflow/nodes/llm/panel.tsx
@@ -25,6 +25,7 @@ import ConfigPrompt from './components/config-prompt'
 import ReasoningFormatConfig from './components/reasoning-format-config'
 import StructureOutput from './components/structure-output'
 import useConfig from './use-config'
+import { getLLMModelIssue, LLMModelIssueCode } from './utils'
 
 const i18nPrefix = 'nodes.llm'
 
@@ -33,7 +34,6 @@ const Panel: FC<NodePanelProps<LLMNodeType>> = ({
   data,
 }) => {
   const { t } = useTranslation()
-  const modelProviders = useProviderContextSelector(s => s.modelProviders)
   const {
     readOnly,
     inputs,
@@ -70,10 +70,18 @@ const Panel: FC<NodePanelProps<LLMNodeType>> = ({
   } = useConfig(id, data)
 
   const model = inputs.model
-  const installedPluginIds = new Set(modelProviders.map(provider => extractPluginId(provider.provider)))
-  const hasModelWarning = !model?.provider
-    || !model?.name
-    || (Boolean(model.provider) && !installedPluginIds.has(extractPluginId(model.provider)))
+  const isModelProviderInstalled = useProviderContextSelector((state) => {
+    const modelIssue = getLLMModelIssue({ modelProvider: model?.provider })
+    if (modelIssue === LLMModelIssueCode.providerRequired)
+      return true
+
+    const modelProviderPluginId = extractPluginId(model.provider)
+    return state.modelProviders.some(provider => extractPluginId(provider.provider) === modelProviderPluginId)
+  })
+  const hasModelWarning = getLLMModelIssue({
+    modelProvider: model?.provider,
+    isModelProviderInstalled,
+  }) !== null
 
   const handleModelChange = useCallback((model: {
     provider: string
diff --git a/web/app/components/workflow/nodes/llm/utils.ts b/web/app/components/workflow/nodes/llm/utils.ts
index 31b942ee64..662a1cae26 100644
--- a/web/app/components/workflow/nodes/llm/utils.ts
+++ b/web/app/components/workflow/nodes/llm/utils.ts
@@ -2,12 +2,41 @@ import type { ValidationError } from 'jsonschema'
 import type { ArrayItems, Field, LLMNodeType } from './types'
 import * as z from 'zod'
 import { draft07Validator, forbidBooleanProperties } from '@/utils/validators'
+import { extractPluginId } from '../../utils/plugin'
 import { ArrayType, Type } from './types'
 
 export const checkNodeValid = (_payload: LLMNodeType) => {
   return true
 }
 
+export enum LLMModelIssueCode {
+  providerRequired = 'provider-required',
+  providerPluginUnavailable = 'provider-plugin-unavailable',
+}
+
+export const getLLMModelIssue = ({
+  modelProvider,
+  isModelProviderInstalled = true,
+}: {
+  modelProvider?: string
+  isModelProviderInstalled?: boolean
+}) => {
+  if (!modelProvider)
+    return LLMModelIssueCode.providerRequired
+
+  if (!isModelProviderInstalled)
+    return LLMModelIssueCode.providerPluginUnavailable
+
+  return null
+}
+
+export const isLLMModelProviderInstalled = (modelProvider: string | undefined, installedPluginIds: ReadonlySet<string>) => {
+  if (!modelProvider)
+    return true
+
+  return installedPluginIds.has(extractPluginId(modelProvider))
+}
+
 export const getFieldType = (field: Field) => {
   const { type, items, enum: enums } = field
   if (field.schemaType === 'file')