diff --git a/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts b/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts
index 63f42e73b0..faba297b37 100644
--- a/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts
+++ b/packages/frontend/core/src/blocksuite/ai/chat-panel/index.ts
@@ -137,6 +137,9 @@ export class ChatPanel extends SignalWatcher(
   @property({ attribute: false })
   accessor aiModelService!: AIModelService;
 
+  @property({ attribute: false })
+  accessor onAISubscribe!: () => Promise<void>;
+
   @state()
   accessor session: CopilotChatHistoryFragment | null | undefined;
 
@@ -462,6 +465,7 @@ export class ChatPanel extends SignalWatcher(
           .peekViewService=${this.peekViewService}
           .subscriptionService=${this.subscriptionService}
           .aiModelService=${this.aiModelService}
+          .onAISubscribe=${this.onAISubscribe}
           .onEmbeddingProgressChange=${this.onEmbeddingProgressChange}
           .onContextChange=${this.onContextChange}
           .width=${this.sidebarWidth}
diff --git a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-composer/ai-chat-composer.ts b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-composer/ai-chat-composer.ts
index c40825251d..e8ba8c8dbe 100644
--- a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-composer/ai-chat-composer.ts
+++ b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-composer/ai-chat-composer.ts
@@ -149,6 +149,9 @@ export class AIChatComposer extends SignalWatcher(
   @property({ attribute: false })
   accessor aiModelService!: AIModelService;
 
+  @property({ attribute: false })
+  accessor onAISubscribe!: () => Promise<void>;
+
   @state()
   accessor chips: ChatChip[] = [];
 
@@ -200,6 +203,7 @@ export class AIChatComposer extends SignalWatcher(
         .notificationService=${this.notificationService}
         .subscriptionService=${this.subscriptionService}
         .aiModelService=${this.aiModelService}
+        .onAISubscribe=${this.onAISubscribe}
         .portalContainer=${this.portalContainer}
         .onChatSuccess=${this.onChatSuccess}
         .trackOptions=${this.trackOptions}
diff --git a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-content/ai-chat-content.ts b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-content/ai-chat-content.ts
index bf7e40e562..b90ae1f2ac 100644
--- a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-content/ai-chat-content.ts
+++ b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-content/ai-chat-content.ts
@@ -192,6 +192,9 @@ export class AIChatContent extends SignalWatcher(
   @property({ attribute: false })
   accessor subscriptionService!: SubscriptionService;
 
+  @property({ attribute: false })
+  accessor onAISubscribe!: () => Promise<void>;
+
   @state()
   accessor chatContextValue: ChatContextValue = DEFAULT_CHAT_CONTEXT_VALUE;
 
@@ -381,6 +384,9 @@ export class AIChatContent extends SignalWatcher(
         .catch(console.error);
     }
 
+    // revalidate subscription to get the latest status
+    this.subscriptionService.subscription.revalidate();
+
     this._disposables.add(
       AIProvider.slots.actions.subscribe(({ event }) => {
         const { status } = this.chatContextValue;
@@ -472,6 +478,7 @@ export class AIChatContent extends SignalWatcher(
         .aiToolsConfigService=${this.aiToolsConfigService}
         .subscriptionService=${this.subscriptionService}
         .aiModelService=${this.aiModelService}
+        .onAISubscribe=${this.onAISubscribe}
         .trackOptions=${{
           where: 'chat-panel',
           control: 'chat-send',
diff --git a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/ai-chat-input.ts b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/ai-chat-input.ts
index 51e546d427..2876438dff 100644
--- a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/ai-chat-input.ts
+++ b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/ai-chat-input.ts
@@ -377,6 +377,9 @@ export class AIChatInput extends SignalWatcher(
   @property({ attribute: false })
   accessor aiModelService!: AIModelService;
 
+  @property({ attribute: false })
+  accessor onAISubscribe!: () => Promise<void>;
+
   @property({ attribute: false })
   accessor isRootSession: boolean = true;
 
@@ -534,6 +537,7 @@ export class AIChatInput extends SignalWatcher(
           .notificationService=${this.notificationService}
           .subscriptionService=${this.subscriptionService}
           .aiModelService=${this.aiModelService}
+          .onAISubscribe=${this.onAISubscribe}
         ></chat-input-preference>
         ${status === 'transmitting' || status === 'loading'
           ? html`<button
diff --git a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/preference-popup.ts b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/preference-popup.ts
index 9c20beb1dc..2f613fdcc2 100644
--- a/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/preference-popup.ts
+++ b/packages/frontend/core/src/blocksuite/ai/components/ai-chat-input/preference-popup.ts
@@ -72,6 +72,9 @@ export class ChatInputPreference extends SignalWatcher(
     .ai-model-prefix svg {
       color: ${unsafeCSSVarV2('icon/activated')};
     }
+    .ai-model-postfix svg:hover {
+      color: ${unsafeCSSVarV2('icon/activated')};
+    }
     .ai-model-version {
       font-size: 12px;
       color: ${unsafeCSSVarV2('text/tertiary')};
@@ -119,6 +122,9 @@ export class ChatInputPreference extends SignalWatcher(
   @property({ attribute: false })
   accessor aiModelService!: AIModelService;
 
+  @property({ attribute: false })
+  accessor onAISubscribe!: () => Promise<void>;
+
   model = computed(() => {
     const modelId = this.aiModelService.modelId.value;
     const activeModel = this.aiModelService.models.value.find(
@@ -161,7 +167,7 @@ export class ChatInputPreference extends SignalWatcher(
                 </div>
               `,
               postfix: html`
-                <div>
+                <div class="ai-model-postfix" @click=${this.onAISubscribe}>
                   ${model.isPro && !isSubscribed ? LockIcon() : undefined}
                 </div>
               `,
diff --git a/packages/frontend/core/src/blocksuite/ai/components/playground/chat.ts b/packages/frontend/core/src/blocksuite/ai/components/playground/chat.ts
index b229cc9575..2b9c69da93 100644
--- a/packages/frontend/core/src/blocksuite/ai/components/playground/chat.ts
+++ b/packages/frontend/core/src/blocksuite/ai/components/playground/chat.ts
@@ -182,6 +182,9 @@ export class PlaygroundChat extends SignalWatcher(
   @property({ attribute: false })
   accessor aiToolsConfigService!: AIToolsConfigService;
 
+  @property({ attribute: false })
+  accessor onAISubscribe: (() => Promise<void>) | undefined;
+
   @property({ attribute: false })
   accessor addChat!: () => Promise<void>;
 
@@ -374,6 +377,7 @@ export class PlaygroundChat extends SignalWatcher(
         .aiToolsConfigService=${this.aiToolsConfigService}
         .affineWorkspaceDialogService=${this.affineWorkspaceDialogService}
         .affineFeatureFlagService=${this.affineFeatureFlagService}
+        .onAISubscribe=${this.onAISubscribe}
       ></ai-chat-composer>
     </div>`;
   }
diff --git a/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts b/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts
index a089fc4679..7e2c1f74a0 100644
--- a/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts
+++ b/packages/frontend/core/src/blocksuite/ai/peek-view/chat-block-peek-view.ts
@@ -2,6 +2,8 @@ import type {
   AIDraftService,
   AIToolsConfigService,
 } from '@affine/core/modules/ai-button';
+import type { AIModelService } from '@affine/core/modules/ai-button/services/models';
+import type { SubscriptionService } from '@affine/core/modules/cloud';
 import type { WorkspaceDialogService } from '@affine/core/modules/dialogs';
 import type { FeatureFlagService } from '@affine/core/modules/feature-flag';
 import type {
@@ -622,6 +624,9 @@ export class AIChatBlockPeekView extends LitElement {
         }}
         .portalContainer=${this.parentElement}
         .reasoningConfig=${this.reasoningConfig}
+        .subscriptionService=${this.subscriptionService}
+        .aiModelService=${this.aiModelService}
+        .onAISubscribe=${this.onAISubscribe}
       ></ai-chat-composer>
     </div> `;
   }
@@ -659,6 +664,15 @@ export class AIChatBlockPeekView extends LitElement {
   @property({ attribute: false })
   accessor aiToolsConfigService!: AIToolsConfigService;
 
+  @property({ attribute: false })
+  accessor aiModelService!: AIModelService;
+
+  @property({ attribute: false })
+  accessor subscriptionService!: SubscriptionService;
+
+  @property({ attribute: false })
+  accessor onAISubscribe!: () => Promise<void>;
+
   @state()
   accessor _historyMessages: ChatMessage[] = [];
 
@@ -697,7 +711,10 @@ export const AIChatBlockPeekViewTemplate = (
   affineFeatureFlagService: FeatureFlagService,
   affineWorkspaceDialogService: WorkspaceDialogService,
   aiDraftService: AIDraftService,
-  aiToolsConfigService: AIToolsConfigService
+  aiToolsConfigService: AIToolsConfigService,
+  subscriptionService: SubscriptionService,
+  aiModelService: AIModelService,
+  onAISubscribe: (() => Promise<void>) | undefined
 ) => {
   return html`<ai-chat-block-peek-view
     .blockModel=${blockModel}
@@ -710,5 +727,8 @@ export const AIChatBlockPeekViewTemplate = (
     .affineWorkspaceDialogService=${affineWorkspaceDialogService}
     .aiDraftService=${aiDraftService}
     .aiToolsConfigService=${aiToolsConfigService}
+    .subscriptionService=${subscriptionService}
+    .aiModelService=${aiModelService}
+    .onAISubscribe=${onAISubscribe}
   ></ai-chat-block-peek-view>`;
 };
diff --git a/packages/frontend/core/src/components/hooks/affine/use-ai-subscribe.ts b/packages/frontend/core/src/components/hooks/affine/use-ai-subscribe.ts
new file mode 100644
index 0000000000..e8bfc70436
--- /dev/null
+++ b/packages/frontend/core/src/components/hooks/affine/use-ai-subscribe.ts
@@ -0,0 +1,52 @@
+import { generateSubscriptionCallbackLink } from '@affine/core/components/hooks/affine/use-subscription-notify';
+import { AuthService, SubscriptionService } from '@affine/core/modules/cloud';
+import { UrlService } from '@affine/core/modules/url';
+import { SubscriptionPlan, SubscriptionRecurring } from '@affine/graphql';
+import { useFramework } from '@toeverything/infra';
+import { nanoid } from 'nanoid';
+import { useCallback } from 'react';
+
+/**
+ * Hook to handle AI subscription checkout
+ * @returns A function that initiates the AI subscription checkout process
+ */
+export const useAISubscribe = () => {
+  const framework = useFramework();
+
+  const handleAISubscribe = useCallback(async () => {
+    try {
+      const authService = framework.get(AuthService);
+      const subscriptionService = framework.get(SubscriptionService);
+      const urlService = framework.get(UrlService);
+
+      const account = authService.session.account$.value;
+      if (!account) {
+        return;
+      }
+
+      const idempotencyKey = nanoid();
+      const checkoutOptions = {
+        recurring: SubscriptionRecurring.Yearly,
+        plan: SubscriptionPlan.AI,
+        variant: null,
+        coupon: null,
+        successCallbackLink: generateSubscriptionCallbackLink(
+          account,
+          SubscriptionPlan.AI,
+          SubscriptionRecurring.Yearly
+        ),
+      };
+
+      const session = await subscriptionService.createCheckoutSession({
+        idempotencyKey,
+        ...checkoutOptions,
+      });
+
+      urlService.openExternal(session);
+    } catch (error) {
+      console.error(error);
+    }
+  }, [framework]);
+
+  return handleAISubscribe;
+};
diff --git a/packages/frontend/core/src/desktop/pages/workspace/chat/index.tsx b/packages/frontend/core/src/desktop/pages/workspace/chat/index.tsx
index fa293f69ff..7001dd2971 100644
--- a/packages/frontend/core/src/desktop/pages/workspace/chat/index.tsx
+++ b/packages/frontend/core/src/desktop/pages/workspace/chat/index.tsx
@@ -11,6 +11,7 @@ import { getViewManager } from '@affine/core/blocksuite/manager/view';
 import { NotificationServiceImpl } from '@affine/core/blocksuite/view-extensions/editor-view/notification-service';
 import { useAIChatConfig } from '@affine/core/components/hooks/affine/use-ai-chat-config';
 import { useAISpecs } from '@affine/core/components/hooks/affine/use-ai-specs';
+import { useAISubscribe } from '@affine/core/components/hooks/affine/use-ai-subscribe';
 import {
   AIDraftService,
   AIToolsConfigService,
@@ -197,6 +198,7 @@ export const Component = () => {
   const confirmModal = useConfirmModal();
   const specs = useAISpecs();
   const mockStd = useMockStd();
+  const handleAISubscribe = useAISubscribe();
 
   // init or update ai-chat-content
   useEffect(() => {
@@ -233,6 +235,8 @@ export const Component = () => {
     content.aiToolsConfigService = framework.get(AIToolsConfigService);
     content.subscriptionService = framework.get(SubscriptionService);
     content.aiModelService = framework.get(AIModelService);
+    content.onAISubscribe = handleAISubscribe;
+
     content.createSession = createSession;
     content.onOpenDoc = onOpenDoc;
 
@@ -260,6 +264,7 @@ export const Component = () => {
     onContextChange,
     specs,
     onOpenDoc,
+    handleAISubscribe,
   ]);
 
   // init or update header ai-chat-toolbar
diff --git a/packages/frontend/core/src/desktop/pages/workspace/detail-page/tabs/chat.tsx b/packages/frontend/core/src/desktop/pages/workspace/detail-page/tabs/chat.tsx
index 0f28f04ed6..654f2acc85 100644
--- a/packages/frontend/core/src/desktop/pages/workspace/detail-page/tabs/chat.tsx
+++ b/packages/frontend/core/src/desktop/pages/workspace/detail-page/tabs/chat.tsx
@@ -4,6 +4,7 @@ import type { AffineEditorContainer } from '@affine/core/blocksuite/block-suite-
 import { NotificationServiceImpl } from '@affine/core/blocksuite/view-extensions/editor-view/notification-service';
 import { useAIChatConfig } from '@affine/core/components/hooks/affine/use-ai-chat-config';
 import { useAISpecs } from '@affine/core/components/hooks/affine/use-ai-specs';
+import { useAISubscribe } from '@affine/core/components/hooks/affine/use-ai-subscribe';
 import {
   AIDraftService,
   AIToolsConfigService,
@@ -63,6 +64,7 @@ export const EditorChatPanel = forwardRef(function EditorChatPanel(
   } = useAIChatConfig();
   const confirmModal = useConfirmModal();
   const specs = useAISpecs();
+  const handleAISubscribe = useAISubscribe();
 
   useEffect(() => {
     if (!editor || !editor.host) return;
@@ -109,6 +111,7 @@ export const EditorChatPanel = forwardRef(function EditorChatPanel(
       chatPanelRef.current.subscriptionService =
         framework.get(SubscriptionService);
       chatPanelRef.current.aiModelService = framework.get(AIModelService);
+      chatPanelRef.current.onAISubscribe = handleAISubscribe;
 
       containerRef.current?.append(chatPanelRef.current);
     } else {
@@ -141,6 +144,7 @@ export const EditorChatPanel = forwardRef(function EditorChatPanel(
     playgroundConfig,
     confirmModal,
     specs,
+    handleAISubscribe,
   ]);
 
   const [autoResized, setAutoResized] = useState(false);
diff --git a/packages/frontend/core/src/modules/peek-view/view/ai-chat-block-peek-view/index.tsx b/packages/frontend/core/src/modules/peek-view/view/ai-chat-block-peek-view/index.tsx
index e1350164e2..6a731e37b6 100644
--- a/packages/frontend/core/src/modules/peek-view/view/ai-chat-block-peek-view/index.tsx
+++ b/packages/frontend/core/src/modules/peek-view/view/ai-chat-block-peek-view/index.tsx
@@ -2,10 +2,13 @@ import { toReactNode } from '@affine/component';
 import { AIChatBlockPeekViewTemplate } from '@affine/core/blocksuite/ai';
 import type { AIChatBlockModel } from '@affine/core/blocksuite/ai/blocks/ai-chat-block/model/ai-chat-model';
 import { useAIChatConfig } from '@affine/core/components/hooks/affine/use-ai-chat-config';
+import { useAISubscribe } from '@affine/core/components/hooks/affine/use-ai-subscribe';
 import {
   AIDraftService,
   AIToolsConfigService,
 } from '@affine/core/modules/ai-button';
+import { AIModelService } from '@affine/core/modules/ai-button/services/models';
+import { SubscriptionService } from '@affine/core/modules/cloud';
 import { WorkspaceDialogService } from '@affine/core/modules/dialogs';
 import { FeatureFlagService } from '@affine/core/modules/feature-flag';
 import type { EditorHost } from '@blocksuite/affine/std';
@@ -33,6 +36,9 @@ export const AIChatBlockPeekView = ({
   const affineWorkspaceDialogService = framework.get(WorkspaceDialogService);
   const aiDraftService = framework.get(AIDraftService);
   const aiToolsConfigService = framework.get(AIToolsConfigService);
+  const subscriptionService = framework.get(SubscriptionService);
+  const aiModelService = framework.get(AIModelService);
+  const handleAISubscribe = useAISubscribe();
 
   return useMemo(() => {
     const template = AIChatBlockPeekViewTemplate(
@@ -45,7 +51,10 @@ export const AIChatBlockPeekView = ({
       affineFeatureFlagService,
       affineWorkspaceDialogService,
       aiDraftService,
-      aiToolsConfigService
+      aiToolsConfigService,
+      subscriptionService,
+      aiModelService,
+      handleAISubscribe
     );
     return toReactNode(template);
   }, [
@@ -59,5 +68,8 @@ export const AIChatBlockPeekView = ({
     affineWorkspaceDialogService,
     aiDraftService,
     aiToolsConfigService,
+    subscriptionService,
+    aiModelService,
+    handleAISubscribe,
   ]);
 };