diff --git a/apps/ui/src/components/views/settings-view.tsx b/apps/ui/src/components/views/settings-view.tsx
index b10883dd..eb8e6804 100644
--- a/apps/ui/src/components/views/settings-view.tsx
+++ b/apps/ui/src/components/views/settings-view.tsx
@@ -9,7 +9,6 @@ import { KeyboardMapDialog } from './settings-view/components/keyboard-map-dialo
 import { DeleteProjectDialog } from './settings-view/components/delete-project-dialog';
 import { SettingsNavigation } from './settings-view/components/settings-navigation';
 import { ApiKeysSection } from './settings-view/api-keys/api-keys-section';
-import { AIEnhancementSection } from './settings-view/ai-enhancement';
 import { PhaseModelsSection } from './settings-view/phase-models';
 import { AppearanceSection } from './settings-view/appearance/appearance-section';
 import { TerminalSection } from './settings-view/terminal/terminal-section';
@@ -47,8 +46,6 @@ export function SettingsView() {
     defaultAIProfileId,
     setDefaultAIProfileId,
     aiProfiles,
-    validationModel,
-    setValidationModel,
     autoLoadClaudeMd,
     setAutoLoadClaudeMd,
     enableSandboxMode,
@@ -105,8 +102,6 @@ export function SettingsView() {
             onPromptCustomizationChange={setPromptCustomization}
           />
         );
-      case 'ai-enhancement':
-        return <AIEnhancementSection />;
       case 'phase-models':
         return <PhaseModelsSection />;
       case 'appearance':
@@ -138,7 +133,6 @@ export function SettingsView() {
             defaultRequirePlanApproval={defaultRequirePlanApproval}
             defaultAIProfileId={defaultAIProfileId}
             aiProfiles={aiProfiles}
-            validationModel={validationModel}
             onShowProfilesOnlyChange={setShowProfilesOnly}
             onDefaultSkipTestsChange={setDefaultSkipTests}
             onEnableDependencyBlockingChange={setEnableDependencyBlocking}
@@ -146,7 +140,6 @@ export function SettingsView() {
             onDefaultPlanningModeChange={setDefaultPlanningMode}
             onDefaultRequirePlanApprovalChange={setDefaultRequirePlanApproval}
             onDefaultAIProfileIdChange={setDefaultAIProfileId}
-            onValidationModelChange={setValidationModel}
           />
         );
       case 'danger':
diff --git a/apps/ui/src/components/views/settings-view/ai-enhancement/ai-enhancement-section.tsx b/apps/ui/src/components/views/settings-view/ai-enhancement/ai-enhancement-section.tsx
deleted file mode 100644
index 0f8995c4..00000000
--- a/apps/ui/src/components/views/settings-view/ai-enhancement/ai-enhancement-section.tsx
+++ /dev/null
@@ -1,91 +0,0 @@
-import { Label } from '@/components/ui/label';
-import { Sparkles } from 'lucide-react';
-import { cn } from '@/lib/utils';
-import { useAppStore } from '@/store/app-store';
-import { CLAUDE_MODELS } from '@/components/views/board-view/shared/model-constants';
-
-export function AIEnhancementSection() {
-  const { enhancementModel, setEnhancementModel } = useAppStore();
-
-  return (
-    <div
-      className={cn(
-        'rounded-2xl overflow-hidden',
-        'border border-border/50',
-        'bg-gradient-to-br from-card/90 via-card/70 to-card/80 backdrop-blur-xl',
-        'shadow-sm shadow-black/5'
-      )}
-    >
-      <div className="p-6 border-b border-border/50 bg-gradient-to-r from-transparent via-accent/5 to-transparent">
-        <div className="flex items-center gap-3 mb-2">
-          <div className="w-9 h-9 rounded-xl bg-gradient-to-br from-brand-500/20 to-brand-600/10 flex items-center justify-center border border-brand-500/20">
-            <Sparkles className="w-5 h-5 text-brand-500" />
-          </div>
-          <h2 className="text-lg font-semibold text-foreground tracking-tight">AI Enhancement</h2>
-        </div>
-        <p className="text-sm text-muted-foreground/80 ml-12">
-          Choose the model used when enhancing feature descriptions.
-        </p>
-      </div>
-      <div className="p-6 space-y-4">
-        <div className="space-y-4">
-          <Label className="text-foreground font-medium">Enhancement Model</Label>
-          <div className="grid grid-cols-1 md:grid-cols-3 gap-3">
-            {CLAUDE_MODELS.map(({ id, label, description, badge }) => {
-              const isActive = enhancementModel === id;
-              return (
-                <button
-                  key={id}
-                  onClick={() => setEnhancementModel(id)}
-                  className={cn(
-                    'group flex flex-col items-start gap-2 px-4 py-4 rounded-xl text-left',
-                    'transition-all duration-200 ease-out',
-                    isActive
-                      ? [
-                          'bg-gradient-to-br from-brand-500/15 to-brand-600/10',
-                          'border-2 border-brand-500/40',
-                          'text-foreground',
-                          'shadow-md shadow-brand-500/10',
-                        ]
-                      : [
-                          'bg-accent/30 hover:bg-accent/50',
-                          'border border-border/50 hover:border-border',
-                          'text-muted-foreground hover:text-foreground',
-                          'hover:shadow-sm',
-                        ],
-                    'hover:scale-[1.02] active:scale-[0.98]'
-                  )}
-                  data-testid={`enhancement-model-${id}`}
-                >
-                  <div className="flex items-center gap-2 w-full">
-                    <span
-                      className={cn(
-                        'font-medium text-sm',
-                        isActive ? 'text-foreground' : 'group-hover:text-foreground'
-                      )}
-                    >
-                      {label}
-                    </span>
-                    {badge && (
-                      <span
-                        className={cn(
-                          'ml-auto text-xs px-2 py-0.5 rounded-full',
-                          isActive
-                            ? 'bg-brand-500/20 text-brand-500'
-                            : 'bg-accent text-muted-foreground'
-                        )}
-                      >
-                        {badge}
-                      </span>
-                    )}
-                  </div>
-                  <span className="text-xs text-muted-foreground/80">{description}</span>
-                </button>
-              );
-            })}
-          </div>
-        </div>
-      </div>
-    </div>
-  );
-}
diff --git a/apps/ui/src/components/views/settings-view/ai-enhancement/index.ts b/apps/ui/src/components/views/settings-view/ai-enhancement/index.ts
deleted file mode 100644
index 53c291fa..00000000
--- a/apps/ui/src/components/views/settings-view/ai-enhancement/index.ts
+++ /dev/null
@@ -1 +0,0 @@
-export { AIEnhancementSection } from './ai-enhancement-section';
diff --git a/apps/ui/src/components/views/settings-view/config/navigation.ts b/apps/ui/src/components/views/settings-view/config/navigation.ts
index 1417311b..3d2a79a2 100644
--- a/apps/ui/src/components/views/settings-view/config/navigation.ts
+++ b/apps/ui/src/components/views/settings-view/config/navigation.ts
@@ -8,7 +8,6 @@ import {
   Volume2,
   FlaskConical,
   Trash2,
-  Sparkles,
   Workflow,
   Plug,
   MessageSquareText,
@@ -27,7 +26,6 @@ export const NAV_ITEMS: NavigationItem[] = [
   { id: 'providers', label: 'AI Providers', icon: Bot },
   { id: 'mcp-servers', label: 'MCP Servers', icon: Plug },
   { id: 'prompts', label: 'Prompt Customization', icon: MessageSquareText },
-  { id: 'ai-enhancement', label: 'AI Enhancement', icon: Sparkles },
   { id: 'phase-models', label: 'Phase Models', icon: Workflow },
   { id: 'appearance', label: 'Appearance', icon: Palette },
   { id: 'terminal', label: 'Terminal', icon: SquareTerminal },
diff --git a/apps/ui/src/components/views/settings-view/feature-defaults/feature-defaults-section.tsx b/apps/ui/src/components/views/settings-view/feature-defaults/feature-defaults-section.tsx
index c30b15ae..24ebe15b 100644
--- a/apps/ui/src/components/views/settings-view/feature-defaults/feature-defaults-section.tsx
+++ b/apps/ui/src/components/views/settings-view/feature-defaults/feature-defaults-section.tsx
@@ -12,7 +12,6 @@ import {
   ScrollText,
   ShieldCheck,
   User,
-  Sparkles,
 } from 'lucide-react';
 import { cn } from '@/lib/utils';
 import {
@@ -23,7 +22,6 @@ import {
   SelectValue,
 } from '@/components/ui/select';
 import type { AIProfile } from '@/store/app-store';
-import type { ModelAlias } from '@automaker/types';
 
 type PlanningMode = 'skip' | 'lite' | 'spec' | 'full';
 
@@ -36,7 +34,6 @@ interface FeatureDefaultsSectionProps {
   defaultRequirePlanApproval: boolean;
   defaultAIProfileId: string | null;
   aiProfiles: AIProfile[];
-  validationModel: ModelAlias;
   onShowProfilesOnlyChange: (value: boolean) => void;
   onDefaultSkipTestsChange: (value: boolean) => void;
   onEnableDependencyBlockingChange: (value: boolean) => void;
@@ -44,7 +41,6 @@ interface FeatureDefaultsSectionProps {
   onDefaultPlanningModeChange: (value: PlanningMode) => void;
   onDefaultRequirePlanApprovalChange: (value: boolean) => void;
   onDefaultAIProfileIdChange: (value: string | null) => void;
-  onValidationModelChange: (value: ModelAlias) => void;
 }
 
 export function FeatureDefaultsSection({
@@ -56,7 +52,6 @@ export function FeatureDefaultsSection({
   defaultRequirePlanApproval,
   defaultAIProfileId,
   aiProfiles,
-  validationModel,
   onShowProfilesOnlyChange,
   onDefaultSkipTestsChange,
   onEnableDependencyBlockingChange,
@@ -64,7 +59,6 @@ export function FeatureDefaultsSection({
   onDefaultPlanningModeChange,
   onDefaultRequirePlanApprovalChange,
   onDefaultAIProfileIdChange,
-  onValidationModelChange,
 }: FeatureDefaultsSectionProps) {
   // Find the selected profile name for display
   const selectedProfile = defaultAIProfileId
@@ -233,45 +227,6 @@ export function FeatureDefaultsSection({
         {/* Separator */}
         <div className="border-t border-border/30" />
 
-        {/* Issue Validation Model */}
-        <div className="group flex items-start space-x-3 p-3 rounded-xl hover:bg-accent/30 transition-colors duration-200 -mx-3">
-          <div className="w-10 h-10 mt-0.5 rounded-xl flex items-center justify-center shrink-0 bg-purple-500/10">
-            <Sparkles className="w-5 h-5 text-purple-500" />
-          </div>
-          <div className="flex-1 space-y-2">
-            <div className="flex items-center justify-between">
-              <Label className="text-foreground font-medium">Issue Validation Model</Label>
-              <Select
-                value={validationModel}
-                onValueChange={(v: string) => onValidationModelChange(v as ModelAlias)}
-              >
-                <SelectTrigger className="w-[140px] h-8" data-testid="validation-model-select">
-                  <SelectValue />
-                </SelectTrigger>
-                <SelectContent>
-                  <SelectItem value="opus">
-                    <span>Opus</span>
-                    <span className="text-[10px] text-muted-foreground ml-1">(Default)</span>
-                  </SelectItem>
-                  <SelectItem value="sonnet">
-                    <span>Sonnet</span>
-                  </SelectItem>
-                  <SelectItem value="haiku">
-                    <span>Haiku</span>
-                  </SelectItem>
-                </SelectContent>
-              </Select>
-            </div>
-            <p className="text-xs text-muted-foreground/80 leading-relaxed">
-              Model used for validating GitHub issues. Opus provides the most thorough analysis,
-              while Haiku is faster and more cost-effective.
-            </p>
-          </div>
-        </div>
-
-        {/* Separator */}
-        <div className="border-t border-border/30" />
-
         {/* Profiles Only Setting */}
         <div className="group flex items-start space-x-3 p-3 rounded-xl hover:bg-accent/30 transition-colors duration-200 -mx-3">
           <Checkbox
diff --git a/apps/ui/src/components/views/settings-view/hooks/use-settings-view.ts b/apps/ui/src/components/views/settings-view/hooks/use-settings-view.ts
index 3fe22c5b..e715cfc2 100644
--- a/apps/ui/src/components/views/settings-view/hooks/use-settings-view.ts
+++ b/apps/ui/src/components/views/settings-view/hooks/use-settings-view.ts
@@ -6,7 +6,6 @@ export type SettingsViewId =
   | 'providers'
   | 'mcp-servers'
   | 'prompts'
-  | 'ai-enhancement'
   | 'phase-models'
   | 'appearance'
   | 'terminal'