diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4fcb3aee0..86a9e1b52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ SPDX-License-Identifier: MIT-0
 
 - **Configurable Lambda architecture** — New `LambdaArchitecture` parameter (`arm64` or `x86_64`) for all unified pattern Lambda container images. Defaults to `arm64` (Graviton) for best price-performance. Use `x86_64` when deploying with custom base images that only support AMD64. The parameter flows through to CodeBuild (`--platform` flag) and Dockerfile (`FROM` image suffix).
 
+### Removed
+
+- **Global split panel ("documents selected")** — Removed the persistent bottom split panel from the global Web UI layout and deleted the related split-panel components and `use-split-panel` hook. The split-panel was noisy on non-document-list pages and only provided full details for single-document selection; reintroduce as an opt-in, per-page component if needed (recommendation: enable only on `DocumentList`).
+
 ## [0.5.15]
 
 ### Added
diff --git a/src/ui/src/components/document-list/DocumentListSplitPanel.tsx b/src/ui/src/components/document-list/DocumentListSplitPanel.tsx
deleted file mode 100644
index 65ee636b7..000000000
--- a/src/ui/src/components/document-list/DocumentListSplitPanel.tsx
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0
-import React from 'react';
-import { SplitPanel } from '@cloudscape-design/components';
-
-import useDocumentsContext from '../../contexts/documents';
-
-import { getPanelContent, SPLIT_PANEL_I18NSTRINGS } from './documents-split-panel-config';
-import type { MappedDocument } from './documents-table-config';
-
-import '@cloudscape-design/global-styles/index.css';
-
-const DocumentListSplitPanel = (): React.JSX.Element => {
-  const { selectedItems, setToolsOpen, getDocumentDetailsFromIds } = useDocumentsContext();
-
-  const { header: panelHeader, body: panelBody } = getPanelContent(
-    selectedItems as unknown as MappedDocument[],
-    'multiple',
-    setToolsOpen,
-    getDocumentDetailsFromIds,
-  );
-
-  return (
-    <SplitPanel header={panelHeader} i18nStrings={SPLIT_PANEL_I18NSTRINGS}>
-      {panelBody}
-    </SplitPanel>
-  );
-};
-
-export default DocumentListSplitPanel;
diff --git a/src/ui/src/components/document-list/documents-split-panel-config.tsx b/src/ui/src/components/document-list/documents-split-panel-config.tsx
deleted file mode 100644
index cebe9c007..000000000
--- a/src/ui/src/components/document-list/documents-split-panel-config.tsx
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0
-import React from 'react';
-import { Table, ColumnLayout, Box, Link } from '@cloudscape-design/components';
-import type { TableProps } from '@cloudscape-design/components';
-import { SELECTION_LABELS } from './documents-table-config';
-import { DOCUMENTS_PATH } from '../../routes/constants';
-
-import DocumentPanel from '../document-panel';
-
-interface MappedDocument {
-  objectKey: string;
-  id?: string;
-  initiationTimeStamp?: string;
-  [key: string]: unknown;
-}
-
-interface PanelContentParams {
-  items: MappedDocument[];
-  setToolsOpen?: (open: boolean) => void;
-  getDocumentDetailsFromIds?: (ids: string[]) => Promise<unknown>;
-}
-
-interface PanelContent {
-  header: string;
-  body: React.ReactNode;
-}
-
-export const SPLIT_PANEL_I18NSTRINGS = {
-  preferencesTitle: 'Split panel preferences',
-  preferencesPositionLabel: 'Split panel position',
-  preferencesPositionDescription: 'Choose the default split panel position for the service.',
-  preferencesPositionSide: 'Side',
-  preferencesPositionBottom: 'Bottom',
-  preferencesConfirm: 'Confirm',
-  preferencesCancel: 'Cancel',
-  closeButtonAriaLabel: 'Close panel',
-  openButtonAriaLabel: 'Open panel',
-  resizeHandleAriaLabel: 'Resize split panel',
-};
-
-const EMPTY_PANEL_CONTENT: PanelContent = {
-  header: '0 documents selected',
-  body: 'Select a document to see its details.',
-};
-
-const getPanelContentSingle = ({ items, setToolsOpen, getDocumentDetailsFromIds }: PanelContentParams): PanelContent => {
-  if (!items.length) {
-    return EMPTY_PANEL_CONTENT;
-  }
-
-  const item = items[0];
-
-  return {
-    header: 'Document Details',
-    body: (
-      <DocumentPanel
-        item={item as MappedDocument & { objectStatus: string }}
-        setToolsOpen={setToolsOpen}
-        getDocumentDetailsFromIds={getDocumentDetailsFromIds}
-      />
-    ),
-  };
-};
-
-const getPanelContentMultiple = ({ items, setToolsOpen, getDocumentDetailsFromIds }: PanelContentParams): PanelContent => {
-  if (!items.length) {
-    return EMPTY_PANEL_CONTENT;
-  }
-
-  if (items.length === 1) {
-    return getPanelContentSingle({ items, setToolsOpen, getDocumentDetailsFromIds });
-  }
-
-  return {
-    header: `${items.length} documents selected`,
-    body: (
-      <ColumnLayout columns={4} variant="text-grid">
-        <div>
-          <Box margin={{ bottom: 'xxxs' }} color="text-label">
-            Documents
-          </Box>
-          <Link fontSize="display-l" href={`#${DOCUMENTS_PATH}`} />
-        </div>
-      </ColumnLayout>
-    ),
-  };
-};
-
-// XXX to be implemented - not sure if needed
-const getPanelContentComparison = ({ items, getDocumentDetailsFromIds }: PanelContentParams): PanelContent => {
-  if (!items.length) {
-    return {
-      header: '0 documents selected',
-      body: 'Select a document to see its details. Select multiple documents to compare.',
-    };
-  }
-
-  if (items.length === 1) {
-    return getPanelContentSingle({ items, getDocumentDetailsFromIds });
-  }
-  const keyHeaderMap: Record<string, string> = {
-    objectKey: 'Document ID',
-    initiationTimeStamp: 'Submission Timestramp',
-  };
-  const transformedData = ['objectKey', 'initiationTimeStamp'].map((key) => {
-    const data: Record<string, unknown> = { comparisonType: keyHeaderMap[key] };
-
-    items.forEach((item) => {
-      const itemId = item.id ?? item.objectKey;
-      data[itemId] = item[key];
-    });
-
-    return data;
-  });
-
-  const columnDefinitions = [
-    {
-      id: 'comparisonType',
-      header: '',
-      cell: ({ comparisonType }: Record<string, unknown>) => <b>{comparisonType as string}</b>,
-    },
-    ...items.map(({ id, objectKey }) => {
-      const columnId = id ?? objectKey;
-      return {
-        id: columnId,
-        header: columnId,
-        cell: (item: Record<string, unknown>) =>
-          Array.isArray(item[columnId]) ? (item[columnId] as string[]).join(', ') : String(item[columnId] ?? ''),
-      };
-    }),
-  ];
-
-  return {
-    header: `${items.length} documents selected`,
-    body: (
-      <Box padding={{ bottom: 'l' }}>
-        <Table<Record<string, unknown>>
-          ariaLabels={SELECTION_LABELS as unknown as TableProps.AriaLabels<Record<string, unknown>>}
-          header={<h2>Compare details</h2>}
-          items={transformedData}
-          columnDefinitions={columnDefinitions}
-        />
-      </Box>
-    ),
-  };
-};
-
-export const getPanelContent = (
-  items: MappedDocument[],
-  type: string,
-  setToolsOpen: (open: boolean) => void,
-  getDocumentDetailsFromIds: (ids: string[]) => Promise<unknown>,
-): PanelContent => {
-  if (type === 'single') {
-    return getPanelContentSingle({ items, setToolsOpen, getDocumentDetailsFromIds });
-  }
-  if (type === 'multiple') {
-    return getPanelContentMultiple({ items, setToolsOpen, getDocumentDetailsFromIds });
-  }
-  return getPanelContentComparison({ items, getDocumentDetailsFromIds });
-};
diff --git a/src/ui/src/components/genaiidp-layout/GenAIIDPLayout.tsx b/src/ui/src/components/genaiidp-layout/GenAIIDPLayout.tsx
index e30f6cf34..a8e3a1850 100644
--- a/src/ui/src/components/genaiidp-layout/GenAIIDPLayout.tsx
+++ b/src/ui/src/components/genaiidp-layout/GenAIIDPLayout.tsx
@@ -10,7 +10,6 @@ import { DocumentsContext } from '../../contexts/documents';
 import { Document } from '../../types/documents';
 
 import useNotifications from '../../hooks/use-notifications';
-import useSplitPanel from '../../hooks/use-split-panel';
 import useGraphQlApi from '../../hooks/use-graphql-api';
 import useAppContext from '../../contexts/app';
 
@@ -27,7 +26,6 @@ import { appLayoutLabels } from '../common/labels';
 import Navigation from './navigation';
 import Breadcrumbs from './breadcrumbs';
 import ToolsPanel from './tools-panel';
-import SplitPanel from './documents-split-panel';
 import ConfigurationLayout from '../configuration-layout';
 import PricingLayout from '../pricing-layout';
 import CapacityPlanningLayout from '../capacity-planning/CapacityPlanningLayout';
@@ -90,8 +88,6 @@ const GenAIIDPLayout = ({ children, tools }: GenAIIDPLayoutProps): React.JSX.Ele
     abortWorkflows,
   } = useGraphQlApi({ initialPeriodsToLoad });
 
-  const { splitPanelOpen, onSplitPanelToggle, splitPanelSize, onSplitPanelResize } = useSplitPanel(selectedItems);
-
   const documentsContextValue = {
     documents,
     getDocumentDetailsFromIds,
@@ -123,11 +119,6 @@ const GenAIIDPLayout = ({ children, tools }: GenAIIDPLayoutProps): React.JSX.Ele
         tools={tools ?? <ToolsPanel />}
         toolsOpen={toolsOpen}
         onToolsChange={({ detail }) => setToolsOpen(detail.open)}
-        splitPanelOpen={splitPanelOpen}
-        onSplitPanelToggle={onSplitPanelToggle}
-        splitPanelSize={splitPanelSize}
-        onSplitPanelResize={onSplitPanelResize}
-        splitPanel={<SplitPanel />}
         content={
           children || (
             <Routes>
diff --git a/src/ui/src/components/genaiidp-layout/documents-split-panel.tsx b/src/ui/src/components/genaiidp-layout/documents-split-panel.tsx
deleted file mode 100644
index 282c94750..000000000
--- a/src/ui/src/components/genaiidp-layout/documents-split-panel.tsx
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0
-import React from 'react';
-import { Route, Routes } from 'react-router-dom';
-
-import DocumentListSplitPanel from '../document-list/DocumentListSplitPanel';
-
-const CallsSplitPanel = (): React.JSX.Element => {
-  return (
-    <Routes>
-      <Route index element={<DocumentListSplitPanel />} />
-    </Routes>
-  );
-};
-
-export default CallsSplitPanel;
diff --git a/src/ui/src/hooks/use-split-panel.ts b/src/ui/src/hooks/use-split-panel.ts
deleted file mode 100644
index a46774c2f..000000000
--- a/src/ui/src/hooks/use-split-panel.ts
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0
-import { useEffect, useState } from 'react';
-
-interface SplitPanelReturn {
-  splitPanelOpen: boolean;
-  onSplitPanelToggle: (event: { detail: { open: boolean } }) => void;
-  splitPanelSize: number;
-  onSplitPanelResize: (event: { detail: { size: number } }) => void;
-}
-
-const useSplitPanel = (selectedItems: unknown[]): SplitPanelReturn => {
-  const [splitPanelSize, setSplitPanelSize] = useState(300);
-  const [splitPanelOpen, setSplitPanelOpen] = useState(false);
-  const [hasManuallyClosedOnce, setHasManuallyClosedOnce] = useState(false);
-
-  const onSplitPanelResize = ({ detail: { size } }: { detail: { size: number } }) => {
-    setSplitPanelSize(size);
-  };
-
-  const onSplitPanelToggle = ({ detail: { open } }: { detail: { open: boolean } }) => {
-    setSplitPanelOpen(open);
-
-    if (!open) {
-      setHasManuallyClosedOnce(true);
-    }
-  };
-
-  useEffect(() => {
-    if (selectedItems.length && !hasManuallyClosedOnce) {
-      setSplitPanelOpen(true);
-    }
-  }, [selectedItems.length, hasManuallyClosedOnce]);
-
-  return {
-    splitPanelOpen,
-    onSplitPanelToggle,
-    splitPanelSize,
-    onSplitPanelResize,
-  };
-};
-
-export default useSplitPanel;