diff --git a/README.md b/README.md
index 5ae6cd711..4e566c532 100644
--- a/README.md
+++ b/README.md
@@ -682,6 +682,9 @@ Unsent Web UI composer drafts survive page reloads and switching between convers
 
 The Web UI composer also supports browser-based voice dictation when the browser exposes the Web Speech API. The microphone button transcribes speech into the local draft only; DeerFlow receives only the transcribed text, while audio handling is delegated to the browser or operating system speech-recognition service according to that environment's policy. Users can review or edit the text before sending.
 
+The Web UI displays a localized AI-generated-content disclaimer below the composer in both standard and custom-agent conversations, reminding users to verify important
+information.
+
 Interrupted first-turn runs still persist a fallback conversation title, so stopping a streaming response does not leave the thread as "Untitled" after refresh.
 
 Streaming Markdown responses animate only newly arrived words; text that is already visible is not faded out and replayed when the next chunk extends the same block.
diff --git a/frontend/src/components/workspace/input-box.tsx b/frontend/src/components/workspace/input-box.tsx
index f8dec2bd9..4f8f438b1 100644
--- a/frontend/src/components/workspace/input-box.tsx
+++ b/frontend/src/components/workspace/input-box.tsx
@@ -2689,6 +2689,15 @@ export function InputBox({
           </div>
         )}
 
+      <p
+        className={cn(
+          "text-muted-foreground/67 z-10 px-4 text-center text-xs leading-4",
+          !isWelcomeMode && "absolute top-full right-0 left-0",
+        )}
+      >
+        {t.inputBox.disclaimer}
+      </p>
+
       <Dialog open={confirmOpen} onOpenChange={setConfirmOpen}>
         <DialogContent>
           <DialogHeader>
diff --git a/frontend/src/core/i18n/locales/en-US.ts b/frontend/src/core/i18n/locales/en-US.ts
index b18c5ac5f..c9fa25538 100644
--- a/frontend/src/core/i18n/locales/en-US.ts
+++ b/frontend/src/core/i18n/locales/en-US.ts
@@ -116,6 +116,7 @@ export const enUS: Translations = {
   // Input Box
   inputBox: {
     placeholder: "How can I assist you today?",
+    disclaimer: "Deerflow is AI and can make mistakes",
     createSkillPrompt:
       "We're going to build a new skill step by step with `skill-creator`. To start, what do you want this skill to do?",
     addAttachments: "Add attachments",
diff --git a/frontend/src/core/i18n/locales/types.ts b/frontend/src/core/i18n/locales/types.ts
index 8e0248a65..0931cd54e 100644
--- a/frontend/src/core/i18n/locales/types.ts
+++ b/frontend/src/core/i18n/locales/types.ts
@@ -99,6 +99,7 @@ export interface Translations {
   // Input Box
   inputBox: {
     placeholder: string;
+    disclaimer: string;
     createSkillPrompt: string;
     addAttachments: string;
     inputPolish: string;
diff --git a/frontend/src/core/i18n/locales/zh-CN.ts b/frontend/src/core/i18n/locales/zh-CN.ts
index 3f20c1062..16f653aef 100644
--- a/frontend/src/core/i18n/locales/zh-CN.ts
+++ b/frontend/src/core/i18n/locales/zh-CN.ts
@@ -115,6 +115,7 @@ export const zhCN: Translations = {
   // Input Box
   inputBox: {
     placeholder: "今天我能为你做些什么？",
+    disclaimer: "内容由AI生成，重要信息请务必核查",
     createSkillPrompt:
       "我们一起用 skill-creator 技能来创建一个技能吧。先问问我希望这个技能能做什么。",
     addAttachments: "添加附件",
diff --git a/frontend/tests/e2e/agent-chat.spec.ts b/frontend/tests/e2e/agent-chat.spec.ts
index 7d44d7518..07351ce91 100644
--- a/frontend/tests/e2e/agent-chat.spec.ts
+++ b/frontend/tests/e2e/agent-chat.spec.ts
@@ -31,7 +31,9 @@ test.describe("Agent chat", () => {
     });
   });
 
-  test("agent chat page loads with input box", async ({ page }) => {
+  test("agent chat page loads with input box and AI disclaimer", async ({
+    page,
+  }) => {
     mockLangGraphAPI(page, { agents: MOCK_AGENTS });
 
     await page.goto("/workspace/agents/test-agent/chats/new");
@@ -39,6 +41,9 @@ test.describe("Agent chat", () => {
     // The prompt input textarea should be visible
     const textarea = page.getByPlaceholder(/how can i assist you/i);
     await expect(textarea).toBeVisible({ timeout: 15_000 });
+    await expect(
+      page.getByText("Deerflow is AI and can make mistakes", { exact: true }),
+    ).toBeVisible();
   });
 
   test("keeps new-chat drafts isolated between agents", async ({ page }) => {
diff --git a/frontend/tests/e2e/chat.spec.ts b/frontend/tests/e2e/chat.spec.ts
index cde58cb11..f27366b83 100644
--- a/frontend/tests/e2e/chat.spec.ts
+++ b/frontend/tests/e2e/chat.spec.ts
@@ -34,6 +34,18 @@ test.describe("Chat workspace", () => {
     await expect(page.getByRole("button", { name: /load more/i })).toBeHidden();
   });
 
+  test("shows the localized AI disclaimer", async ({ page }) => {
+    await page.goto("/workspace/chats/new");
+    await page.evaluate(() => {
+      document.cookie = "locale=zh-CN; path=/; SameSite=Lax";
+    });
+    await page.reload();
+
+    await expect(
+      page.getByText("内容由AI生成，重要信息请务必核查", { exact: true }),
+    ).toBeVisible({ timeout: 15_000 });
+  });
+
   test("can type a message in the input box", async ({ page }) => {
     await page.goto("/workspace/chats/new");
 
diff --git a/frontend/tests/unit/core/i18n/translations.test.ts b/frontend/tests/unit/core/i18n/translations.test.ts
new file mode 100644
index 000000000..7757d87eb
--- /dev/null
+++ b/frontend/tests/unit/core/i18n/translations.test.ts
@@ -0,0 +1,14 @@
+import { describe, expect, it } from "@rstest/core";
+
+import { translations } from "@/core/i18n/translations";
+
+describe("AI disclaimer translations", () => {
+  it("provides the requested overseas and domestic copy", () => {
+    expect(translations["en-US"].inputBox.disclaimer).toBe(
+      "Deerflow is AI and can make mistakes",
+    );
+    expect(translations["zh-CN"].inputBox.disclaimer).toBe(
+      "内容由AI生成，重要信息请务必核查",
+    );
+  });
+});