diff --git a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/empty_convo.tsx b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/empty_convo.tsx
index ef2b75e86d64f..50e8cadc199ab 100644
--- a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/empty_convo.tsx
+++ b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/empty_convo.tsx
@@ -5,11 +5,12 @@
  * 2.0.
  */
 
-import React, { Dispatch, SetStateAction } from 'react';
+import React, { Dispatch, SetStateAction, useMemo } from 'react';
 import { EuiFlexGroup, EuiFlexItem, EuiPanel, EuiText } from '@elastic/eui';
 import { css } from '@emotion/react';
 import { PromptResponse } from '@kbn/elastic-assistant-common';
 import { AssistantBeacon } from '@kbn/ai-assistant-icon';
+import { useVerticalBreakpoint } from './use_vertical_breakpoint';
 import { useAssistantContext } from '../../..';
 import { StarterPrompts } from './starter_prompts';
 import { SystemPrompt } from '../prompt_editor/system_prompt';
@@ -39,12 +40,15 @@ export const EmptyConvo: React.FC<Props> = ({
   setUserPrompt,
 }) => {
   const { assistantAvailability } = useAssistantContext();
+  const breakpoint = useVerticalBreakpoint();
+  const compressed = useMemo(() => breakpoint !== 'tall', [breakpoint]);
   return (
     <EuiFlexGroup
       alignItems="center"
       justifyContent="spaceBetween"
       data-test-subj="emptyConvo"
       direction="column"
+      gutterSize={compressed ? 'm' : 'l'}
     >
       <EuiFlexItem grow={false}>
         <EuiPanel
@@ -54,12 +58,17 @@ export const EmptyConvo: React.FC<Props> = ({
             text-align: center;
           `}
         >
-          <EuiFlexGroup alignItems="center" justifyContent="center" direction="column">
+          <EuiFlexGroup
+            alignItems="center"
+            justifyContent="center"
+            direction="column"
+            gutterSize={compressed ? 'm' : 'l'}
+          >
             <EuiFlexItem grow={false}>
-              <AssistantBeacon backgroundColor="emptyShade" size="xl" />
+              <AssistantBeacon backgroundColor="emptyShade" size={compressed ? 'm' : 'xl'} />
             </EuiFlexItem>
             <EuiFlexItem grow={false}>
-              <EuiText>
+              <EuiText size={compressed ? 'xs' : 'relative'}>
                 <h3>{i18n.EMPTY_SCREEN_TITLE}</h3>
                 <p>{i18n.EMPTY_SCREEN_DESCRIPTION}</p>
               </EuiText>
@@ -71,17 +80,22 @@ export const EmptyConvo: React.FC<Props> = ({
                 isSettingsModalVisible={isSettingsModalVisible}
                 onSystemPromptSelectionChange={setCurrentSystemPromptId}
                 setIsSettingsModalVisible={setIsSettingsModalVisible}
+                compressed={compressed}
               />
             </EuiFlexItem>
             <EuiFlexItem grow={false}>
-              <SetupKnowledgeBaseButton />
+              <SetupKnowledgeBaseButton {...(compressed ? { display: 'mini' } : {})} />
             </EuiFlexItem>
           </EuiFlexGroup>
         </EuiPanel>
       </EuiFlexItem>
       {assistantAvailability.isStarterPromptsEnabled && (
         <EuiFlexItem grow={false} css={starterPromptWrapperClassName}>
-          <StarterPrompts connectorId={connectorId} setUserPrompt={setUserPrompt} />
+          <StarterPrompts
+            compressed={compressed}
+            connectorId={connectorId}
+            setUserPrompt={setUserPrompt}
+          />
         </EuiFlexItem>
       )}
     </EuiFlexGroup>
diff --git a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/starter_prompts.tsx b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/starter_prompts.tsx
index d4dafe174afb8..7700683e865f8 100644
--- a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/starter_prompts.tsx
+++ b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/starter_prompts.tsx
@@ -6,21 +6,14 @@
  */
 
 import React, { useMemo, useCallback } from 'react';
-import {
-  EuiFlexGroup,
-  EuiFlexItem,
-  EuiIcon,
-  EuiPanel,
-  EuiSpacer,
-  EuiText,
-  EuiTitle,
-} from '@elastic/eui';
+import { EuiFlexGroup, EuiFlexItem, EuiIcon, EuiPanel, EuiSpacer, EuiText } from '@elastic/eui';
 import { css } from '@emotion/css';
 import { PromptItemArray } from '@kbn/elastic-assistant-common/impl/schemas/security_ai_prompts/common_attributes.gen';
 import { useAssistantContext, useFindPrompts } from '../../..';
 
 interface Props {
   connectorId?: string;
+  compressed?: boolean;
   setUserPrompt: React.Dispatch<React.SetStateAction<string | null>>;
 }
 const starterPromptClassName = css`
@@ -65,7 +58,11 @@ export const promptGroups = [
   },
 ];
 
-export const StarterPrompts: React.FC<Props> = ({ connectorId, setUserPrompt }) => {
+export const StarterPrompts: React.FC<Props> = ({
+  compressed = false,
+  connectorId,
+  setUserPrompt,
+}) => {
   const {
     assistantAvailability: { isAssistantEnabled },
     assistantTelemetry,
@@ -116,7 +113,7 @@ export const StarterPrompts: React.FC<Props> = ({ connectorId, setUserPrompt })
       {fetchedPromptGroups.map(({ description, title, icon, prompt }) => (
         <EuiFlexItem key={prompt} className={starterPromptClassName}>
           <EuiPanel
-            paddingSize="m"
+            paddingSize={compressed ? 's' : 'm'}
             hasShadow={false}
             hasBorder
             data-test-subj={prompt}
@@ -124,12 +121,12 @@ export const StarterPrompts: React.FC<Props> = ({ connectorId, setUserPrompt })
             className={starterPromptInnerClassName}
           >
             <EuiSpacer size="s" />
-            <EuiIcon type={icon} size="xl" />
+            <EuiIcon type={icon} size={compressed ? 'm' : 'xl'} />
             <EuiSpacer size="s" />
-            <EuiTitle size="xs">
-              <h2>{title}</h2>
-            </EuiTitle>
-            <EuiText size="s">{description}</EuiText>
+            <EuiText size={compressed ? 'xs' : 's'}>
+              <h3>{title}</h3>
+              <p>{description}</p>
+            </EuiText>
           </EuiPanel>
         </EuiFlexItem>
       ))}
diff --git a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/use_vertical_breakpoint.test.ts b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/use_vertical_breakpoint.test.ts
new file mode 100644
index 0000000000000..dbbd1391eba5e
--- /dev/null
+++ b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/use_vertical_breakpoint.test.ts
@@ -0,0 +1,58 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { act, renderHook } from '@testing-library/react';
+import { useVerticalBreakpoint } from './use_vertical_breakpoint';
+
+describe('useVerticalBreakpoint', () => {
+  beforeEach(() => {
+    jest.useFakeTimers();
+  });
+
+  afterEach(() => {
+    jest.useRealTimers();
+  });
+
+  function setWindowHeight(height: number) {
+    Object.defineProperty(window, 'innerHeight', {
+      writable: true,
+      configurable: true,
+      value: height,
+    });
+    window.dispatchEvent(new Event('resize'));
+  }
+
+  it('returns "short" for height < 600', () => {
+    setWindowHeight(500);
+    const { result } = renderHook(() => useVerticalBreakpoint());
+    expect(result.current).toBe('short');
+  });
+
+  it('returns "medium" for 600 <= height < 1100', () => {
+    setWindowHeight(800);
+    const { result } = renderHook(() => useVerticalBreakpoint());
+    expect(result.current).toBe('medium');
+  });
+
+  it('returns "tall" for height >= 1100', () => {
+    setWindowHeight(1200);
+    const { result } = renderHook(() => useVerticalBreakpoint());
+    expect(result.current).toBe('tall');
+  });
+
+  it('updates value on window resize once debounced', () => {
+    setWindowHeight(1200);
+    const { result } = renderHook(() => useVerticalBreakpoint());
+    expect(result.current).toBe('tall');
+    setWindowHeight(500);
+    expect(result.current).toBe('tall');
+    act(() => {
+      jest.advanceTimersByTime(100); // debounce
+    });
+    expect(result.current).toBe('short');
+  });
+});
diff --git a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/use_vertical_breakpoint.ts b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/use_vertical_breakpoint.ts
new file mode 100644
index 0000000000000..059966e0ee587
--- /dev/null
+++ b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/assistant_body/use_vertical_breakpoint.ts
@@ -0,0 +1,30 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { useEffect } from 'react';
+import useRafState from 'react-use/lib/useRafState';
+
+export type VerticalBreakpoint = 'short' | 'medium' | 'tall';
+
+export function useVerticalBreakpoint(): VerticalBreakpoint {
+  const [height, setHeight] = useRafState(() => window.innerHeight);
+
+  useEffect(() => {
+    const handleResize = () => {
+      const newHeight = window.innerHeight;
+      setHeight((prev) => (prev !== newHeight ? newHeight : prev));
+    };
+    window.addEventListener('resize', handleResize, { passive: true });
+    return () => {
+      window.removeEventListener('resize', handleResize);
+    };
+  }, [setHeight]);
+
+  if (height < 600) return 'short';
+  if (height < 1100) return 'medium';
+  return 'tall';
+}
diff --git a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/index.tsx b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/index.tsx
index 1cf00944d51de..f951fcdc28984 100644
--- a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/index.tsx
+++ b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/index.tsx
@@ -13,6 +13,7 @@ interface Props {
   allSystemPrompts: PromptResponse[];
   currentSystemPromptId: string | undefined;
   isSettingsModalVisible: boolean;
+  compressed?: boolean;
   onSystemPromptSelectionChange: (systemPromptId: string | undefined) => void;
   setIsSettingsModalVisible: React.Dispatch<React.SetStateAction<boolean>>;
 }
@@ -21,6 +22,7 @@ const SystemPromptComponent: React.FC<Props> = ({
   allSystemPrompts,
   currentSystemPromptId,
   isSettingsModalVisible,
+  compressed = false,
   onSystemPromptSelectionChange,
   setIsSettingsModalVisible,
 }) => {
@@ -43,6 +45,7 @@ const SystemPromptComponent: React.FC<Props> = ({
       data-test-subj="systemPrompt"
       isClearable={true}
       isSettingsModalVisible={isSettingsModalVisible}
+      compressed={compressed}
       onSystemPromptSelectionChange={onSystemPromptSelectionChange}
       selectedPrompt={selectedPrompt}
       setIsSettingsModalVisible={setIsSettingsModalVisible}
diff --git a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/select_system_prompt/index.tsx b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/select_system_prompt/index.tsx
index 884b195fce3d0..736e0f14e5d46 100644
--- a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/select_system_prompt/index.tsx
+++ b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/prompt_editor/system_prompt/select_system_prompt/index.tsx
@@ -144,6 +144,7 @@ const SelectSystemPromptComponent: React.FC<Props> = ({
             prepend={!isSettingsModalVisible ? PROMPT_CONTEXT_SELECTOR_PREFIX : undefined}
             css={css`
               padding-right: 56px !important;
+              ${compressed ? 'font-size: 0.9rem;' : ''}
             `}
           />
         </EuiFormRow>
diff --git a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/translations.ts b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/translations.ts
index c0ebd81550579..f793c37473b53 100644
--- a/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/translations.ts
+++ b/x-pack/platform/packages/shared/kbn-elastic-assistant/impl/assistant/translations.ts
@@ -37,10 +37,10 @@ export const EMPTY_SCREEN_TITLE = i18n.translate(
 );
 
 export const EMPTY_SCREEN_DESCRIPTION = i18n.translate(
-  'xpack.elasticAssistant.assistant.emptyScreen.description',
+  'xpack.elasticAssistant.assistant.emptyScreen.descriptionV2',
   {
     defaultMessage:
-      'Ask me anything from "Summarize this alert" to "Help me build a query" using the following system prompt:',
+      'Ask me anything in the chat box, or choose one of the prompts below to jump right in.',
   }
 );
 
diff --git a/x-pack/platform/plugins/private/translations/translations/fr-FR.json b/x-pack/platform/plugins/private/translations/translations/fr-FR.json
index 0a7fef99d88fd..350712d4837f8 100644
--- a/x-pack/platform/plugins/private/translations/translations/fr-FR.json
+++ b/x-pack/platform/plugins/private/translations/translations/fr-FR.json
@@ -16174,7 +16174,6 @@
     "xpack.elasticAssistant.assistant.deleteConversationModal.deleteButtonText": "Supprimer",
     "xpack.elasticAssistant.assistant.deleteConversationModal.deleteConversationTitle": "Supprimer cette conversation",
     "xpack.elasticAssistant.assistant.disclaimer": "Les réponses des systèmes d'IA ne sont pas toujours tout à fait exactes, même si elles peuvent sembler convaincantes. Pour en savoir plus sur la fonctionnalité d'assistant et son utilisation, consultez la documentation.",
-    "xpack.elasticAssistant.assistant.emptyScreen.description": "Demandez-moi tout ce que vous voulez, de \"Résumez cette alerte\" à \"Aidez-moi à construire une requête\" en utilisant l'invite suivante du système :",
     "xpack.elasticAssistant.assistant.emptyScreen.title": "Comment puis-je vous aider ?",
     "xpack.elasticAssistant.assistant.firstPromptEditor.addNewSystemPrompt": "Ajouter une nouvelle invite système...",
     "xpack.elasticAssistant.assistant.firstPromptEditor.clearSystemPrompt": "Effacer une invite système",
diff --git a/x-pack/platform/plugins/private/translations/translations/ja-JP.json b/x-pack/platform/plugins/private/translations/translations/ja-JP.json
index c3e1a87ae7c51..c7e4ef90eabad 100644
--- a/x-pack/platform/plugins/private/translations/translations/ja-JP.json
+++ b/x-pack/platform/plugins/private/translations/translations/ja-JP.json
@@ -16151,7 +16151,6 @@
     "xpack.elasticAssistant.assistant.deleteConversationModal.deleteButtonText": "削除",
     "xpack.elasticAssistant.assistant.deleteConversationModal.deleteConversationTitle": "この会話を削除",
     "xpack.elasticAssistant.assistant.disclaimer": "AIシステムからの応答は、納得できるように思われる場合であっても、必ずしも完全に正確であるとは限りません。アシスタント機能とその使用方法の詳細については、ドキュメントを参照してください。",
-    "xpack.elasticAssistant.assistant.emptyScreen.description": "次のシステムプロンプトを使用して、「このアラートを要約してください」から「クエリの作成を手伝ってください」まで、何でも依頼してください。",
     "xpack.elasticAssistant.assistant.emptyScreen.title": "お手伝いできることはありますか？",
     "xpack.elasticAssistant.assistant.firstPromptEditor.addNewSystemPrompt": "新しいシステムプロンプトを追加...",
     "xpack.elasticAssistant.assistant.firstPromptEditor.clearSystemPrompt": "システムプロンプトを消去",
diff --git a/x-pack/platform/plugins/private/translations/translations/zh-CN.json b/x-pack/platform/plugins/private/translations/translations/zh-CN.json
index 4d2d2c81cb5a6..bbad3e8344533 100644
--- a/x-pack/platform/plugins/private/translations/translations/zh-CN.json
+++ b/x-pack/platform/plugins/private/translations/translations/zh-CN.json
@@ -16191,7 +16191,6 @@
     "xpack.elasticAssistant.assistant.deleteConversationModal.deleteButtonText": "删除",
     "xpack.elasticAssistant.assistant.deleteConversationModal.deleteConversationTitle": "删除此对话",
     "xpack.elasticAssistant.assistant.disclaimer": "虽然来自 AI 系统的响应不可能始终完全准确，但它们似乎令人信服。有关辅助功能及其用法的详细信息，请参阅文档。",
-    "xpack.elasticAssistant.assistant.emptyScreen.description": "使用以下系统提示向我提出任何要求，从“汇总此告警”到“帮助我构建查询”：",
     "xpack.elasticAssistant.assistant.emptyScreen.title": "我如何帮助您？",
     "xpack.elasticAssistant.assistant.firstPromptEditor.addNewSystemPrompt": "添加新系统提示……",
     "xpack.elasticAssistant.assistant.firstPromptEditor.clearSystemPrompt": "清除系统提示",