diff --git a/apps/electron/package.json b/apps/electron/package.json
index fdd3dd3c5..38b615177 100644
--- a/apps/electron/package.json
+++ b/apps/electron/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@proma/electron",
-  "version": "0.17.15",
+  "version": "0.17.16",
   "description": "Proma next gen ai software with general agents - Electron App",
   "main": "dist/main.cjs",
   "author": {
diff --git a/apps/electron/src/renderer/App.tsx b/apps/electron/src/renderer/App.tsx
index f9e72d31f..4395f673e 100644
--- a/apps/electron/src/renderer/App.tsx
+++ b/apps/electron/src/renderer/App.tsx
@@ -1,6 +1,7 @@
 import * as React from 'react'
 import { useAtom, useStore } from 'jotai'
 import { AppShell } from './components/app-shell/AppShell'
+import { InitialModelSetupView } from './components/onboarding/InitialModelSetupView'
 import { OnboardingView } from './components/onboarding/OnboardingView'
 import { TutorialBanner } from './components/tutorial/TutorialBanner'
 import { EnvironmentCheckDialog } from './components/environment/EnvironmentCheckDialog'
@@ -17,6 +18,7 @@ import { onboardingReplayRequestedAtom } from './atoms/onboarding'
 import { settingsOpenAtom, settingsTabAtom } from './atoms/settings-tab'
 import { tabsAtom, activeTabIdAtom, openTab, TUTORIAL_TAB_ID } from './atoms/tab-atoms'
 import { hasCompletedCurrentOnboarding } from '../types'
+import { requiresInitialModelSetup } from './lib/model-setup'
 import hopperSeasideWhiteHouse from './assets/onboarding/hopper-seaside-white-house.png'
 import promaMarkWhite from './assets/onboarding/proma-mark-white.svg'
 import type { AppShellContextType } from './contexts/AppShellContext'
@@ -27,6 +29,8 @@ export default function App(): React.ReactElement {
   const store = useStore()
   const [isLoading, setIsLoading] = React.useState(true)
   const [showOnboarding, setShowOnboarding] = React.useState(false)
+  const [showInitialModelSetup, setShowInitialModelSetup] = React.useState(false)
+  const [initialModelSetupCreatesWelcome, setInitialModelSetupCreatesWelcome] = React.useState(false)
   const [onboardingReplayRequested, setOnboardingReplayRequested] = useAtom(onboardingReplayRequestedAtom)
   const [isReplayingOnboarding, setIsReplayingOnboarding] = React.useState(false)
   const isWindows = React.useMemo(() => detectIsWindows(), [])
@@ -37,9 +41,14 @@ export default function App(): React.ReactElement {
   React.useEffect(() => {
     const initialize = async () => {
       try {
-        const settings = await window.electronAPI.getSettings()
+        const [settings, channels] = await Promise.all([
+          window.electronAPI.getSettings(),
+          window.electronAPI.listChannels(),
+        ])
         if (!hasCompletedCurrentOnboarding(settings)) {
           setShowOnboarding(true)
+        } else if (requiresInitialModelSetup(channels)) {
+          setShowInitialModelSetup(true)
         }
       } catch (error) {
         console.error('[App] 初始化失败:', error)
@@ -60,18 +69,7 @@ export default function App(): React.ReactElement {
     setOnboardingReplayRequested(false)
   }, [isLoading, onboardingReplayRequested, setOnboardingReplayRequested])
 
-  // 完成 onboarding 回调：创建欢迎对话，可选打开教程 Tab
-  const handleOnboardingComplete = async (openTutorial?: boolean) => {
-    const replayingOnboarding = isReplayingOnboarding
-    setShowOnboarding(false)
-    setIsReplayingOnboarding(false)
-
-    if (replayingOnboarding) {
-      store.set(settingsTabAtom, 'onboarding')
-      store.set(settingsOpenAtom, true)
-      return
-    }
-
+  const enterProma = async (openTutorial?: boolean): Promise<void> => {
     if (openTutorial) {
       const tabs = store.get(tabsAtom)
       const result = openTab(tabs, { type: 'tutorial', sessionId: TUTORIAL_TAB_ID, title: 'Proma 使用教程' })
@@ -100,6 +98,45 @@ export default function App(): React.ReactElement {
     }
   }
 
+  // 完成 onboarding 后，首次没有保存过渠道的用户必须先走完设置页的创建表单。
+  const handleOnboardingComplete = async (openTutorial?: boolean): Promise<void> => {
+    const replayingOnboarding = isReplayingOnboarding
+    setIsReplayingOnboarding(false)
+
+    if (replayingOnboarding) {
+      setShowOnboarding(false)
+      store.set(settingsTabAtom, 'onboarding')
+      store.set(settingsOpenAtom, true)
+      return
+    }
+
+    try {
+      const [settings, channels] = await Promise.all([
+        window.electronAPI.getSettings(),
+        window.electronAPI.listChannels(),
+      ])
+      if (requiresInitialModelSetup(channels)) {
+        setInitialModelSetupCreatesWelcome(true)
+        setShowInitialModelSetup(true)
+        setShowOnboarding(false)
+        return
+      }
+    } catch (error) {
+      // 无法读取渠道时不阻止用户进入应用，避免临时 IPC 错误造成无法启动。
+      console.error('[App] 检查首次模型配置失败:', error)
+    }
+
+    setShowOnboarding(false)
+    await enterProma(openTutorial)
+  }
+
+  const handleInitialModelSetupComplete = async (): Promise<void> => {
+    setShowInitialModelSetup(false)
+    if (!initialModelSetupCreatesWelcome) return
+    setInitialModelSetupCreatesWelcome(false)
+    await enterProma()
+  }
+
   // 加载中状态
   if (isLoading) {
     return <StartupLoadingScreen />
@@ -140,6 +177,7 @@ export default function App(): React.ReactElement {
       <FaqDialog />
       <TutorialBanner />
       <GlobalEnvironmentCheckDialog />
+      {showInitialModelSetup && <InitialModelSetupView onComplete={handleInitialModelSetupComplete} />}
     </TooltipProvider>
   )
 }
diff --git a/apps/electron/src/renderer/assets/models/official/claude.png b/apps/electron/src/renderer/assets/models/official/claude.png
new file mode 100644
index 000000000..560598ed1
Binary files /dev/null and b/apps/electron/src/renderer/assets/models/official/claude.png differ
diff --git a/apps/electron/src/renderer/assets/models/official/deepseek.png b/apps/electron/src/renderer/assets/models/official/deepseek.png
new file mode 100644
index 000000000..04b181f2a
Binary files /dev/null and b/apps/electron/src/renderer/assets/models/official/deepseek.png differ
diff --git a/apps/electron/src/renderer/assets/models/official/moonshot.png b/apps/electron/src/renderer/assets/models/official/moonshot.png
new file mode 100644
index 000000000..c77e05726
Binary files /dev/null and b/apps/electron/src/renderer/assets/models/official/moonshot.png differ
diff --git a/apps/electron/src/renderer/assets/models/official/openai.png b/apps/electron/src/renderer/assets/models/official/openai.png
new file mode 100644
index 000000000..394ebc75b
Binary files /dev/null and b/apps/electron/src/renderer/assets/models/official/openai.png differ
diff --git a/apps/electron/src/renderer/assets/models/official/zhipu.png b/apps/electron/src/renderer/assets/models/official/zhipu.png
new file mode 100644
index 000000000..1cbf1682d
Binary files /dev/null and b/apps/electron/src/renderer/assets/models/official/zhipu.png differ
diff --git a/apps/electron/src/renderer/components/onboarding/InitialModelSetupView.tsx b/apps/electron/src/renderer/components/onboarding/InitialModelSetupView.tsx
new file mode 100644
index 000000000..731f1d27d
--- /dev/null
+++ b/apps/electron/src/renderer/components/onboarding/InitialModelSetupView.tsx
@@ -0,0 +1,55 @@
+import type { Channel } from '@proma/shared'
+import { CheckCircle2 } from 'lucide-react'
+import { ChannelForm } from '@/components/settings/ChannelForm'
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+} from '@/components/ui/dialog'
+
+interface InitialModelSetupViewProps {
+  onComplete: () => void
+}
+
+/**
+ * 首次使用时在已加载的主界面上覆盖渠道创建 Dialog。
+ * 这让用户能看到 Proma 已经可用，同时要求先保存一个渠道配置再开始交互。
+ */
+export function InitialModelSetupView({ onComplete }: InitialModelSetupViewProps): React.ReactElement {
+  const handleSaved = (channel?: Channel): void => {
+    if (channel) onComplete()
+  }
+
+  return (
+    <Dialog open onOpenChange={() => undefined}>
+      <DialogContent
+        hideClose
+        className="max-h-[calc(100vh-3rem)] max-w-5xl gap-0 overflow-y-auto p-0 sm:rounded-2xl"
+        onEscapeKeyDown={(event) => event.preventDefault()}
+        onPointerDownOutside={(event) => event.preventDefault()}
+      >
+        <div className="px-6 py-7 sm:px-8 sm:py-8">
+          <DialogHeader className="mb-7 max-w-2xl text-left">
+            <div className="mb-3 flex items-center gap-2 text-sm font-medium text-primary">
+              <CheckCircle2 className="h-4 w-4" aria-hidden="true" />
+              <span>已进入 Proma</span>
+            </div>
+            <DialogTitle className="text-2xl font-semibold">添加模型渠道</DialogTitle>
+            <DialogDescription className="mt-2 leading-6">
+              完成这一步后即可开始使用 Proma；模型可稍后再添加。
+            </DialogDescription>
+          </DialogHeader>
+
+          <ChannelForm
+            channel={null}
+            initialSetup
+            onSaved={handleSaved}
+            onCancel={() => undefined}
+          />
+        </div>
+      </DialogContent>
+    </Dialog>
+  )
+}
diff --git a/apps/electron/src/renderer/components/settings/ChannelForm.tsx b/apps/electron/src/renderer/components/settings/ChannelForm.tsx
index 5cfab4075..439794936 100644
--- a/apps/electron/src/renderer/components/settings/ChannelForm.tsx
+++ b/apps/electron/src/renderer/components/settings/ChannelForm.tsx
@@ -53,6 +53,11 @@ import {
   resolveOpenAIResponsesUrl,
 } from '@proma/core'
 import { getProviderLogo } from '@/lib/model-logo'
+import openaiModelLogo from '@/assets/models/official/openai.png'
+import claudeModelLogo from '@/assets/models/official/claude.png'
+import deepseekModelLogo from '@/assets/models/official/deepseek.png'
+import moonshotModelLogo from '@/assets/models/official/moonshot.png'
+import zhipuModelLogo from '@/assets/models/official/zhipu.png'
 import { ScrollArea } from '@/components/ui/scroll-area'
 import {
   AlertDialog,
@@ -75,6 +80,8 @@ import {
 interface ChannelFormProps {
   /** 编辑模式下传入已有渠道，创建模式传 null */
   channel: Channel | null
+  /** 首次配置时隐藏返回操作，完成创建后才进入主工作区。 */
+  initialSetup?: boolean
   onSaved: (channel?: Channel) => void
   onCancel: () => void
 }
@@ -198,7 +205,65 @@ function buildZhipuTeamSecret(secret: ZhipuTeamSecretForm): string {
 /** auto-save 防抖延迟 */
 const AUTO_SAVE_DELAY = 600
 
-export function ChannelForm({ channel, onSaved, onCancel }: ChannelFormProps): React.ReactElement {
+const OFFICIAL_MODEL_CHANNELS = [
+  { provider: 'OpenAI', model: 'GPT 5.6 最新模型', logo: openaiModelLogo },
+  { provider: 'Anthropic', model: 'Claude 最新模型', logo: claudeModelLogo },
+  { provider: 'DeepSeek', model: 'DeepSeek V4', logo: deepseekModelLogo },
+  { provider: 'Moonshot', model: 'Kimi K3', logo: moonshotModelLogo },
+  { provider: '智谱', model: 'GLM-5.2', logo: zhipuModelLogo },
+] as const
+
+function openPromaCommercialDownload(): void {
+  void window.electronAPI.openExternal('https://proma.cool/download')
+}
+
+function OfficialCloudChannelNotice(): React.ReactElement {
+  return (
+    <SettingsSection
+      title="没有可用渠道？"
+      description="当前为 Proma 开源版，下载并于 Proma 商业版登录即可使用以下官方内置模型渠道，也保留第三方渠道配置。"
+    >
+      <div className="relative mt-5 border-2 border-foreground bg-card px-5 pb-5 pt-8 shadow-xl sm:px-6 sm:pb-6">
+        <div className="absolute -left-0.5 -top-3 bg-foreground px-3 py-1 text-[11px] font-semibold tracking-[0.16em] text-background">
+          Proma 商业版
+        </div>
+
+        <div>
+          <p className="text-sm font-semibold text-foreground">当前 Proma 官方 Agent 渠道</p>
+          <ul className="mt-5 grid grid-cols-1 gap-x-10 gap-y-4 text-sm text-muted-foreground sm:grid-cols-2 xl:grid-cols-3">
+            {OFFICIAL_MODEL_CHANNELS.map(({ provider, model, logo }) => (
+              <li key={provider} className="flex min-w-0 items-center gap-2.5">
+                <img src={logo} alt="" aria-hidden="true" className="h-5 w-5 shrink-0 rounded-md" />
+                <span className="whitespace-nowrap">{provider} · {model}</span>
+              </li>
+            ))}
+          </ul>
+        </div>
+
+        <div className="mt-7 border-t border-foreground/20 pt-5">
+          <p className="text-sm leading-6 text-muted-foreground">
+            官方托管链路提供 Agent 协议兼容与模型健康监控；精选模型享受 Proma Cloud 优惠，并包含 WebSearch、GPT Image 2 等内嵌能力。
+          </p>
+          <Button
+            type="button"
+            variant="outline"
+            className="mt-4 gap-1.5 border-foreground bg-foreground text-background hover:bg-foreground/90 hover:text-background"
+            onClick={openPromaCommercialDownload}
+          >
+            <Download size={15} />
+            <span>下载 Proma 商业版</span>
+          </Button>
+        </div>
+
+        <p className="mt-5 border-t border-foreground/20 pt-3 text-xs text-muted-foreground">
+          可用模型、价格和权益会随时间调整，以商业版应用内当期展示为准。
+        </p>
+      </div>
+    </SettingsSection>
+  )
+}
+
+export function ChannelForm({ channel, initialSetup = false, onSaved, onCancel }: ChannelFormProps): React.ReactElement {
   const isEdit = channel !== null
 
   // 表单状态
@@ -783,9 +848,9 @@ export function ChannelForm({ channel, onSaved, onCancel }: ChannelFormProps): R
     }
   }
 
-  /** 创建渠道（仅新建模式） */
+  /** 创建渠道（仅新建模式）。首次 onboarding 可先保存空模型渠道，后续再补充模型。 */
   const handleCreate = async (): Promise<void> => {
-    if (models.length === 0) {
+    if (!initialSetup && models.length === 0) {
       toast.warning('尚未配置模型，建议先从供应商获取或手动添加', { id: 'no-models-warn' })
       return
     }
@@ -863,16 +928,22 @@ export function ChannelForm({ channel, onSaved, onCancel }: ChannelFormProps): R
 
   return (
     <div className="space-y-6">
+      {!isEdit && <OfficialCloudChannelNotice />}
+
       {/* 标题栏 */}
       <div className="flex items-center gap-3">
-        <Button
-          variant="ghost"
-          size="icon"
-          className="h-8 w-8"
-          onClick={handleBack}
-        >
-          <ArrowLeft size={18} />
-        </Button>
+        {!initialSetup && (
+          <Button
+            variant="ghost"
+            size="icon"
+            className="h-8 w-8"
+            onClick={handleBack}
+            title="返回模型配置列表"
+            aria-label="返回模型配置列表"
+          >
+            <ArrowLeft size={18} />
+          </Button>
+        )}
         <h3 className="text-lg font-medium text-foreground flex-1">
           {isEdit ? '编辑模型配置' : '添加模型配置'}
         </h3>
diff --git a/apps/electron/src/renderer/lib/model-setup.ts b/apps/electron/src/renderer/lib/model-setup.ts
new file mode 100644
index 000000000..83ccc9abb
--- /dev/null
+++ b/apps/electron/src/renderer/lib/model-setup.ts
@@ -0,0 +1,9 @@
+import type { Channel } from '@proma/shared'
+
+/**
+ * 首次进入 Proma 前只要求用户至少保存过一个渠道。
+ * 已有用户即使暂时停用渠道，也不应因为升级被重新拦截。
+ */
+export function requiresInitialModelSetup(channels: readonly Channel[]): boolean {
+  return channels.length === 0
+}