diff --git a/e2e/tests/generation-live.spec.ts b/e2e/tests/generation-live.spec.ts
index aad5b48..69a9bbf 100644
--- a/e2e/tests/generation-live.spec.ts
+++ b/e2e/tests/generation-live.spec.ts
@@ -145,6 +145,7 @@ test.describe('Live generation with OpenAI', () => {
       use_brave_search: false,
       article_history_days: 90,
       batch_size: 5,
+      summary_length: 3,
     });
     expect(settingsResp.status).toBe(200);
 
diff --git a/frontend/src/i18n/fr.ts b/frontend/src/i18n/fr.ts
index 65a0854..f345afc 100644
--- a/frontend/src/i18n/fr.ts
+++ b/frontend/src/i18n/fr.ts
@@ -161,6 +161,11 @@ const fr = {
   'settings.articleHistoryDays': 'Historique des articles (jours)',
   'settings.batchSize': 'Taille du lot de traitement',
   'settings.batchSizeHelp': 'Nombre d\'articles traites en parallele lors de la generation (defaut: 5).',
+  'settings.summaryLength': 'Niveau de detail des resumes',
+  'settings.summaryLengthHelp': 'Controle la longueur des resumes generes pour chaque article.',
+  'settings.summaryShort': 'Court',
+  'settings.summaryMedium': 'Moyen',
+  'settings.summaryDetailed': 'Detaille',
   'settings.export': 'Exporter',
   'settings.import': 'Importer',
   'settings.exportIncludeKeys': 'Inclure les cles API',
diff --git a/frontend/src/pages/Settings.tsx b/frontend/src/pages/Settings.tsx
index 3d54d33..8eb57de 100644
--- a/frontend/src/pages/Settings.tsx
+++ b/frontend/src/pages/Settings.tsx
@@ -433,6 +433,40 @@ const Settings: Component = () => {
 
           </div>
 
+          {/* Summary length slider */}
+          <div>
+            <label for="summaryLength" class="block text-sm font-medium text-gray-700">
+              {t('settings.summaryLength')}
+            </label>
+            <p class="text-xs text-gray-500 mb-2">{t('settings.summaryLengthHelp')}</p>
+            <div class="flex items-center gap-4">
+              <span class="text-xs text-gray-500">{t('settings.summaryShort')}</span>
+              <input
+                type="range"
+                id="summaryLength"
+                min="1"
+                max="3"
+                step="1"
+                class="flex-1 h-2 bg-gray-200 rounded-lg appearance-none cursor-pointer accent-indigo-600"
+                value={settings().summary_length}
+                onInput={(e) =>
+                  setSettings((prev) => ({
+                    ...prev,
+                    summary_length: parseInt(e.currentTarget.value) || 3,
+                  }))
+                }
+              />
+              <span class="text-xs text-gray-500">{t('settings.summaryDetailed')}</span>
+            </div>
+            <div class="text-center text-xs text-gray-500 mt-1">
+              {settings().summary_length === 1
+                ? t('settings.summaryShort')
+                : settings().summary_length === 2
+                  ? t('settings.summaryMedium')
+                  : t('settings.summaryDetailed')}
+            </div>
+          </div>
+
           <SettingsAdvanced settings={settings} setSettings={setSettings} />
 
           <SettingsBraveSearch settings={settings} setSettings={setSettings} />
diff --git a/frontend/src/types.ts b/frontend/src/types.ts
index 34509e7..659cbba 100644
--- a/frontend/src/types.ts
+++ b/frontend/src/types.ts
@@ -48,6 +48,7 @@ export interface UserSettings {
   use_brave_search: boolean;
   article_history_days: number;
   batch_size: number;
+  summary_length: number;
   search_agent_behavior: string;
   ai_model: string;
   ai_model_websearch: string;
@@ -66,6 +67,7 @@ export const DEFAULT_SETTINGS: UserSettings = {
   use_brave_search: false,
   article_history_days: 90,
   batch_size: 5,
+  summary_length: 3,
   search_agent_behavior: '',
   ai_model: '',
   ai_model_websearch: '',