diff --git a/packages/module/patternfly-docs/content/extensions/chatbot/examples/Messages/MessageWithDeepThinking.tsx b/packages/module/patternfly-docs/content/extensions/chatbot/examples/Messages/MessageWithDeepThinking.tsx
new file mode 100644
index 000000000..2131b7f55
--- /dev/null
+++ b/packages/module/patternfly-docs/content/extensions/chatbot/examples/Messages/MessageWithDeepThinking.tsx
@@ -0,0 +1,17 @@
+import { FunctionComponent } from 'react';
+import Message from '@patternfly/chatbot/dist/dynamic/Message';
+import patternflyAvatar from './patternfly_avatar.jpg';
+
+export const MessageWithDeepThinkingExample: FunctionComponent = () => (
+  <Message
+    name="Bot"
+    role="bot"
+    avatar={patternflyAvatar}
+    content="This example has a body description that's within the recommended limit of 2 lines."
+    deepThinking={{
+      toggleContent: 'Show thinking',
+      subheading: 'Thought for 3 seconds',
+      body: "Here's why I said this."
+    }}
+  />
+);
diff --git a/packages/module/patternfly-docs/content/extensions/chatbot/examples/Messages/Messages.md b/packages/module/patternfly-docs/content/extensions/chatbot/examples/Messages/Messages.md
index caef87e76..b5a741073 100644
--- a/packages/module/patternfly-docs/content/extensions/chatbot/examples/Messages/Messages.md
+++ b/packages/module/patternfly-docs/content/extensions/chatbot/examples/Messages/Messages.md
@@ -186,6 +186,16 @@ If you are using [model context protocol (MCP)](https://www.redhat.com/en/blog/m
 
 ```
 
+### Messages with deep thinking
+
+You can share details about the "thought process" behind an LLM's response, also known as deep thinking. To display a customizable, expandable card with these details, pass `deepThinking` to `<Message>` and provide a subheading (optional) and content body. 
+
+Because this is an evolving area, this card content is currently fully customizable.
+
+```js file="./MessageWithDeepThinking.tsx"
+
+```
+
 ### Messages with quick start tiles
 
 [Quick start](/extensions/quick-starts/) tiles can be added to messages via the `quickStarts` prop. Users can initiate the quick start from a link within the message tile.
diff --git a/packages/module/src/DeepThinking/DeepThinking.scss b/packages/module/src/DeepThinking/DeepThinking.scss
new file mode 100644
index 000000000..7a5f49f71
--- /dev/null
+++ b/packages/module/src/DeepThinking/DeepThinking.scss
@@ -0,0 +1,24 @@
+.pf-chatbot__deep-thinking {
+  --pf-v6-c-card--BorderColor: var(--pf-t--global--border--color--control--read-only);
+  overflow: unset;
+}
+
+.pf-chatbot__deep-thinking-expandable-section {
+  --pf-v6-c-expandable-section--Gap: var(--pf-t--global--spacer--xs);
+}
+
+.pf-chatbot__deep-thinking-section {
+  display: flex;
+  flex-direction: column;
+  gap: var(--pf-t--global--spacer--xs);
+}
+
+.pf-chatbot__deep-thinking-subheading {
+  font-size: var(--pf-t--global--font--size--body--sm);
+  font-weight: var(--pf-t--global--font--weight--body--default);
+  color: var(--pf-t--global--text--color--subtle);
+}
+
+.pf-chatbot__deep-thinking-body {
+  color: var(--pf-t--global--text--color--subtle);
+}
diff --git a/packages/module/src/DeepThinking/DeepThinking.test.tsx b/packages/module/src/DeepThinking/DeepThinking.test.tsx
new file mode 100644
index 000000000..03f333385
--- /dev/null
+++ b/packages/module/src/DeepThinking/DeepThinking.test.tsx
@@ -0,0 +1,61 @@
+import { render, screen } from '@testing-library/react';
+import '@testing-library/jest-dom';
+import DeepThinking from './DeepThinking';
+
+describe('DeepThinking', () => {
+  const defaultProps = {
+    toggleContent: 'Show thinking'
+  };
+
+  it('should render with required props only', () => {
+    render(<DeepThinking {...defaultProps} />);
+    expect(screen.getByText('Show thinking')).toBeTruthy();
+  });
+
+  it('should render subheading when provided', () => {
+    const subheading = 'Thought for 3 seconds';
+    render(<DeepThinking {...defaultProps} subheading={subheading} />);
+    expect(screen.getByText(subheading)).toBeTruthy();
+  });
+
+  it('should render body content when provided', () => {
+    const body = "Here's why I think that";
+    render(<DeepThinking {...defaultProps} body={body} />);
+    expect(screen.getByText(body)).toBeTruthy();
+  });
+
+  it('should render with complex content including React elements', () => {
+    const body = (
+      <div>
+        <p>Complex body content</p>
+        <ul>
+          <li>Item 1</li>
+          <li>Item 2</li>
+        </ul>
+      </div>
+    );
+
+    render(<DeepThinking {...defaultProps} body={body} />);
+    expect(screen.getByText('Complex body content')).toBeTruthy();
+    expect(screen.getByText('Item 1')).toBeTruthy();
+    expect(screen.getByText('Item 2')).toBeTruthy();
+  });
+
+  it('should apply custom className from cardProps', () => {
+    const { container } = render(
+      <DeepThinking {...defaultProps} cardProps={{ className: 'custom-tool-response-class' }} />
+    );
+    expect(container.querySelector('.custom-tool-response-class')).toBeTruthy();
+  });
+
+  it('should pass through expandableSectionProps', () => {
+    render(<DeepThinking {...defaultProps} expandableSectionProps={{ className: 'custom-expandable-class' }} />);
+    expect(document.querySelector('.custom-expandable-class')).toBeTruthy();
+  });
+
+  it('should not render subheading span when subheading is not provided', () => {
+    const { container } = render(<DeepThinking {...defaultProps} />);
+    const subheadingContainer = container.querySelector('.pf-chatbot__tool-response-subheading');
+    expect(subheadingContainer).toBeFalsy();
+  });
+});
diff --git a/packages/module/src/DeepThinking/DeepThinking.tsx b/packages/module/src/DeepThinking/DeepThinking.tsx
new file mode 100644
index 000000000..9b485cb6b
--- /dev/null
+++ b/packages/module/src/DeepThinking/DeepThinking.tsx
@@ -0,0 +1,68 @@
+// ============================================================================
+// Deep Thinking
+// ============================================================================
+import {
+  Card,
+  CardBody,
+  CardBodyProps,
+  CardProps,
+  ExpandableSection,
+  ExpandableSectionProps
+} from '@patternfly/react-core';
+import { useState, type FunctionComponent } from 'react';
+
+export interface DeepThinkingProps {
+  /** Toggle content shown for expandable section  */
+  toggleContent: React.ReactNode;
+  /** Additional props passed to expandable section */
+  expandableSectionProps?: Omit<ExpandableSectionProps, 'ref'>;
+  /** Subheading rendered inside expandable section */
+  subheading?: string;
+  /** Body text rendered inside expandable section */
+  body?: React.ReactNode | string;
+  /** Additional props passed to main card */
+  cardProps?: CardProps;
+  /** Additional props passed to main card body */
+  cardBodyProps?: CardBodyProps;
+}
+
+export const DeepThinking: FunctionComponent<DeepThinkingProps> = ({
+  body,
+  cardProps,
+  expandableSectionProps,
+  subheading,
+  toggleContent,
+  cardBodyProps
+}: DeepThinkingProps) => {
+  const [isExpanded, setIsExpanded] = useState(true);
+
+  const onToggle = (_event: React.MouseEvent, isExpanded: boolean) => {
+    setIsExpanded(isExpanded);
+  };
+
+  return (
+    <Card isCompact className="pf-chatbot__deep-thinking" {...cardProps}>
+      <CardBody {...cardBodyProps}>
+        <ExpandableSection
+          toggleContent={toggleContent}
+          onToggle={onToggle}
+          isExpanded={isExpanded}
+          isIndented
+          className="pf-chatbot__deep-thinking-expandable-section"
+          {...expandableSectionProps}
+        >
+          <div className="pf-chatbot__deep-thinking-section">
+            {subheading && (
+              <div className="pf-chatbot__deep-thinking-subheading">
+                <span>{subheading}</span>
+              </div>
+            )}
+            {body && <div className="pf-chatbot__deep-thinking-body">{body}</div>}
+          </div>
+        </ExpandableSection>
+      </CardBody>
+    </Card>
+  );
+};
+
+export default DeepThinking;
diff --git a/packages/module/src/DeepThinking/index.ts b/packages/module/src/DeepThinking/index.ts
new file mode 100644
index 000000000..5b072f993
--- /dev/null
+++ b/packages/module/src/DeepThinking/index.ts
@@ -0,0 +1,3 @@
+export { default } from './DeepThinking';
+
+export * from './DeepThinking';
diff --git a/packages/module/src/Message/Message.test.tsx b/packages/module/src/Message/Message.test.tsx
index c64c191f3..c05753475 100644
--- a/packages/module/src/Message/Message.test.tsx
+++ b/packages/module/src/Message/Message.test.tsx
@@ -7,6 +7,7 @@ import { monitorSampleAppQuickStart } from './QuickStarts/monitor-sampleapp-quic
 import { monitorSampleAppQuickStartWithImage } from './QuickStarts/monitor-sampleapp-quickstart-with-image';
 import rehypeExternalLinks from '../__mocks__/rehype-external-links';
 import { AlertActionLink } from '@patternfly/react-core';
+import { DeepThinkingProps } from '../DeepThinking';
 
 const ALL_ACTIONS = [
   { label: /Good response/i },
@@ -145,6 +146,12 @@ const IMAGE = `![Multi-colored wavy lines on a black background](https://cdn.dri
 
 const INLINE_IMAGE = `inline text ![Multi-colored wavy lines on a black background](https://cdn.dribbble.com/userupload/10651749/file/original-8a07b8e39d9e8bf002358c66fce1223e.gif)`;
 
+const DEEP_THINKING: DeepThinkingProps = {
+  toggleContent: 'Show thinking',
+  subheading: 'Thought for 3 seconds',
+  body: "Here's why I said this."
+};
+
 const ERROR = {
   title: 'Could not load chat',
   children: 'Wait a few minutes and check your network settings. If the issue persists: ',
@@ -1003,4 +1010,10 @@ describe('Message', () => {
     // code block isn't rendering
     expect(screen.queryByRole('button', { name: 'Copy code' })).toBeFalsy();
   });
+  it('should render deep thinking section correctly', () => {
+    render(<Message avatar="./img" role="user" name="User" content="" deepThinking={DEEP_THINKING} />);
+    expect(screen.getByRole('button', { name: /Show thinking/i })).toBeTruthy();
+    expect(screen.getByText('Thought for 3 seconds')).toBeTruthy();
+    expect(screen.getByText("Here's why I said this.")).toBeTruthy();
+  });
 });
diff --git a/packages/module/src/Message/Message.tsx b/packages/module/src/Message/Message.tsx
index 9e28d4f1e..067c04475 100644
--- a/packages/module/src/Message/Message.tsx
+++ b/packages/module/src/Message/Message.tsx
@@ -50,6 +50,7 @@ import ErrorMessage from './ErrorMessage/ErrorMessage';
 import MessageInput from './MessageInput';
 import { rehypeMoveImagesOutOfParagraphs } from './Plugins/rehypeMoveImagesOutOfParagraphs';
 import ToolResponse, { ToolResponseProps } from '../ToolResponse';
+import DeepThinking, { DeepThinkingProps } from '../DeepThinking';
 
 export interface MessageAttachment {
   /** Name of file attached to the message */
@@ -192,6 +193,8 @@ export interface MessageProps extends Omit<HTMLProps<HTMLDivElement>, 'role'> {
   reactMarkdownProps?: Options;
   /** Props for tool response card */
   toolResponse?: ToolResponseProps;
+  /** Props for deep thinking card */
+  deepThinking?: DeepThinkingProps;
 }
 
 export const MessageBase: FunctionComponent<MessageProps> = ({
@@ -234,6 +237,7 @@ export const MessageBase: FunctionComponent<MessageProps> = ({
   isMarkdownDisabled,
   reactMarkdownProps,
   toolResponse,
+  deepThinking,
   ...props
 }: MessageProps) => {
   const [messageText, setMessageText] = useState(content);
@@ -381,6 +385,7 @@ export const MessageBase: FunctionComponent<MessageProps> = ({
             {renderMessage()}
             {afterMainContent && <>{afterMainContent}</>}
             {toolResponse && <ToolResponse {...toolResponse} />}
+            {deepThinking && <DeepThinking {...deepThinking} />}
             {!isLoading && sources && <SourcesCard {...sources} isCompact={isCompact} />}
             {quickStarts && quickStarts.quickStart && (
               <QuickStartTile
diff --git a/packages/module/src/index.ts b/packages/module/src/index.ts
index b80359696..3633c9b0d 100644
--- a/packages/module/src/index.ts
+++ b/packages/module/src/index.ts
@@ -42,6 +42,9 @@ export * from './CodeModal';
 export { default as Compare } from './Compare';
 export * from './Compare';
 
+export { default as DeepThinking } from './DeepThinking';
+export * from './DeepThinking';
+
 export { default as FileDetails } from './FileDetails';
 export * from './FileDetails';
 
diff --git a/packages/module/src/main.scss b/packages/module/src/main.scss
index 8be2f9622..5fc150b6d 100644
--- a/packages/module/src/main.scss
+++ b/packages/module/src/main.scss
@@ -11,6 +11,7 @@
 @import './ChatbotWelcomePrompt/ChatbotWelcomePrompt';
 @import './CodeModal/CodeModal';
 @import './Compare/Compare';
+@import './DeepThinking/DeepThinking';
 @import './FileDetails/FileDetails';
 @import './FileDetailsLabel/FileDetailsLabel';
 @import './FileDropZone/FileDropZone';