diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6c96c5b649..872d271cffa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -59,6 +59,7 @@ Docs: https://docs.openclaw.ai
 
 ### Fixes
 
+- Control UI/Talk: make failed Talk startup errors dismissable and clear the stale Talk error state when dismissed, so missing realtime voice provider configuration does not leave a permanent chat banner. Fixes #77071. Thanks @ijoshdavis.
 - Web fetch: late-bind `web_fetch` config and provider fallback metadata from the active runtime snapshot, matching `web_search` so long-lived tools do not use stale fetch provider settings. Thanks @vincentkoc.
 - Discord: clear stale startup probe bot/application status when the async bot probe throws, not just when it returns a degraded probe result. Thanks @vincentkoc.
 - Web search: scope explicit bundled `web_search` provider runtime loading through manifest ownership, so selecting DuckDuckGo/Gemini/etc. does not import unrelated bundled providers or log their optional dependency failures. Thanks @vincentkoc.
diff --git a/ui/src/styles/components.css b/ui/src/styles/components.css
index 651f3e29865..3a0233a499a 100644
--- a/ui/src/styles/components.css
+++ b/ui/src/styles/components.css
@@ -1543,6 +1543,40 @@
   position: relative;
 }
 
+.callout--dismissible {
+  display: flex;
+  align-items: flex-start;
+  gap: 10px;
+}
+
+.callout__content {
+  min-width: 0;
+  flex: 1;
+}
+
+.callout__dismiss {
+  width: 28px;
+  height: 28px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  flex: 0 0 auto;
+  border: 0;
+  border-radius: var(--radius-sm);
+  background: transparent;
+  color: currentColor;
+  cursor: pointer;
+}
+
+.callout__dismiss:hover {
+  background: rgba(255, 255, 255, 0.08);
+}
+
+.callout__dismiss svg {
+  width: 16px;
+  height: 16px;
+}
+
 .callout.danger {
   border-color: rgba(239, 68, 68, 0.25);
   background: linear-gradient(135deg, rgba(239, 68, 68, 0.08) 0%, rgba(239, 68, 68, 0.04) 100%);
diff --git a/ui/src/ui/app-render.helpers.node.test.ts b/ui/src/ui/app-render.helpers.node.test.ts
index 6e19369080a..f0682191ef4 100644
--- a/ui/src/ui/app-render.helpers.node.test.ts
+++ b/ui/src/ui/app-render.helpers.node.test.ts
@@ -36,6 +36,7 @@ vi.mock("./controllers/sessions.ts", () => ({
 
 import {
   createChatSession,
+  dismissChatError,
   isCronSessionKey,
   parseSessionKey,
   resolveAssistantAttachmentAuthToken,
@@ -771,6 +772,7 @@ describe("switchChatSession", () => {
       chatRunId: "run-1",
       chatSideResultTerminalRuns: new Set(["btw-run-1"]),
       chatStreamStartedAt: 1,
+      sessionsShowArchived: false,
       settings,
       applySettings(next: typeof settings) {
         state.settings = next;
@@ -904,3 +906,25 @@ describe("switchChatSession", () => {
     });
   });
 });
+
+describe("dismissChatError", () => {
+  it("clears persistent Talk error state", () => {
+    const state = {
+      lastError: 'Realtime voice provider "openai" is not configured',
+      lastErrorCode: "UNAVAILABLE",
+      realtimeTalkActive: false,
+      realtimeTalkStatus: "error",
+      realtimeTalkDetail: 'Realtime voice provider "openai" is not configured',
+      realtimeTalkTranscript: "partial transcript",
+    } as AppViewState;
+
+    dismissChatError(state);
+
+    expect(state.lastError).toBeNull();
+    expect(state.lastErrorCode).toBeNull();
+    expect(state.realtimeTalkActive).toBe(false);
+    expect(state.realtimeTalkStatus).toBe("idle");
+    expect(state.realtimeTalkDetail).toBeNull();
+    expect(state.realtimeTalkTranscript).toBeNull();
+  });
+});
diff --git a/ui/src/ui/app-render.helpers.ts b/ui/src/ui/app-render.helpers.ts
index a1c897b26f0..ca377befc81 100644
--- a/ui/src/ui/app-render.helpers.ts
+++ b/ui/src/ui/app-render.helpers.ts
@@ -619,6 +619,17 @@ export function switchChatSession(state: AppViewState, nextSessionKey: string) {
   void refreshSessionOptions(state);
 }
 
+export function dismissChatError(state: AppViewState) {
+  state.lastError = null;
+  state.lastErrorCode = null;
+  if (state.realtimeTalkStatus === "error") {
+    state.realtimeTalkActive = false;
+    state.realtimeTalkStatus = "idle";
+    state.realtimeTalkDetail = null;
+    state.realtimeTalkTranscript = null;
+  }
+}
+
 export async function createChatSession(state: AppViewState) {
   if (!state.client || !state.connected) {
     return;
@@ -650,7 +661,7 @@ export async function createChatSession(state: AppViewState) {
       limit: 0,
       includeGlobal: true,
       includeUnknown: true,
-      showArchived: Boolean(state.sessionsShowArchived),
+      showArchived: state.sessionsShowArchived,
     },
   );
   if (
@@ -681,7 +692,7 @@ async function refreshSessionOptions(state: AppViewState) {
     limit: 0,
     includeGlobal: true,
     includeUnknown: true,
-    showArchived: Boolean(state.sessionsShowArchived),
+    showArchived: state.sessionsShowArchived,
   });
 }
 
diff --git a/ui/src/ui/app-render.ts b/ui/src/ui/app-render.ts
index 98869e14edf..1e37f2b6ecd 100644
--- a/ui/src/ui/app-render.ts
+++ b/ui/src/ui/app-render.ts
@@ -15,6 +15,7 @@ import {
   renderSidebarConnectionStatus,
   renderTopbarThemeModeToggle,
   createChatSession,
+  dismissChatError,
   switchChatSession,
 } from "./app-render.helpers.ts";
 import { warnQueryToken } from "./app-settings.ts";
@@ -2364,6 +2365,7 @@ export function renderApp(state: AppViewState) {
               canSend: state.connected,
               disabledReason: chatDisabledReason,
               error: state.lastError,
+              onDismissError: () => dismissChatError(state),
               sessions: state.sessionsResult,
               focusMode: chatFocus,
               autoExpandToolCalls: false,
diff --git a/ui/src/ui/chat/session-controls.ts b/ui/src/ui/chat/session-controls.ts
index 199bf4d0c77..fa098a19aaa 100644
--- a/ui/src/ui/chat/session-controls.ts
+++ b/ui/src/ui/chat/session-controls.ts
@@ -77,7 +77,7 @@ async function refreshSessionOptions(state: AppViewState) {
     limit: 0,
     includeGlobal: true,
     includeUnknown: true,
-    showArchived: Boolean(state.sessionsShowArchived),
+    showArchived: state.sessionsShowArchived,
   });
 }
 
diff --git a/ui/src/ui/views/chat.test.ts b/ui/src/ui/views/chat.test.ts
index 2fefb4b8e3b..0daad37b70e 100644
--- a/ui/src/ui/views/chat.test.ts
+++ b/ui/src/ui/views/chat.test.ts
@@ -389,6 +389,7 @@ function renderChatView(overrides: Partial<Parameters<typeof renderChat>[0]> = {
       onSend: () => undefined,
       onCompact: () => undefined,
       onToggleRealtimeTalk: () => undefined,
+      onDismissError: () => undefined,
       onAbort: () => undefined,
       onQueueRemove: () => undefined,
       onQueueSteer: () => undefined,
@@ -494,6 +495,24 @@ describe("chat voice controls", () => {
     expect(container.querySelector('[aria-label="Start Talk"]')).not.toBeNull();
     expect(container.querySelector('[aria-label="Voice input"]')).toBeNull();
   });
+
+  it("lets users dismiss Talk start errors", () => {
+    const onDismissError = vi.fn();
+    const container = renderChatView({
+      error: 'Realtime voice provider "openai" is not configured',
+      realtimeTalkStatus: "error",
+      realtimeTalkDetail: 'Realtime voice provider "openai" is not configured',
+      onDismissError,
+    });
+
+    expect(container.querySelector('[role="alert"]')?.textContent).toContain(
+      'Realtime voice provider "openai" is not configured',
+    );
+
+    container.querySelector<HTMLButtonElement>('[aria-label="Dismiss error"]')?.click();
+
+    expect(onDismissError).toHaveBeenCalledTimes(1);
+  });
 });
 
 describe("chat slash menu accessibility", () => {
diff --git a/ui/src/ui/views/chat.ts b/ui/src/ui/views/chat.ts
index d492c37e5bc..f13f199ec97 100644
--- a/ui/src/ui/views/chat.ts
+++ b/ui/src/ui/views/chat.ts
@@ -111,6 +111,7 @@ export type ChatProps = {
   onCompact?: () => void | Promise<void>;
   onOpenSessionCheckpoints?: () => void | Promise<void>;
   onToggleRealtimeTalk?: () => void;
+  onDismissError?: () => void;
   onAbort?: () => void;
   onQueueRemove: (id: string) => void;
   onQueueSteer?: (id: string) => void;
@@ -1136,7 +1137,26 @@ export function renderChat(props: ChatProps) {
       @dragover=${(e: DragEvent) => e.preventDefault()}
     >
       ${props.disabledReason ? html`<div class="callout">${props.disabledReason}</div>` : nothing}
-      ${props.error ? html`<div class="callout danger">${props.error}</div>` : nothing}
+      ${props.error
+        ? html`
+            <div class="callout danger callout--dismissible" role="alert">
+              <span class="callout__content">${props.error}</span>
+              ${props.onDismissError
+                ? html`
+                    <button
+                      class="callout__dismiss"
+                      type="button"
+                      @click=${props.onDismissError}
+                      aria-label="Dismiss error"
+                      title="Dismiss error"
+                    >
+                      ${icons.x}
+                    </button>
+                  `
+                : nothing}
+            </div>
+          `
+        : nothing}
       ${props.focusMode
         ? html`
             <button