diff --git a/src/features/authFiles/components/AuthFileDetailsSheet.tsx b/src/features/authFiles/components/AuthFileDetailsSheet.tsx
index 5ca106ca..b162d3ca 100644
--- a/src/features/authFiles/components/AuthFileDetailsSheet.tsx
+++ b/src/features/authFiles/components/AuthFileDetailsSheet.tsx
@@ -208,6 +208,16 @@ export function AuthFileDetailsSheet(props: AuthFileDetailsSheetProps) {
                     disabled={disableControls || editor.saving || !editor.json}
                     onChange={(e) => onChange('weight', e.target.value)}
                   />
+                  <div className="form-group">
+                    <label>{t('auth_files.disable_cooling_label')}</label>
+                    <ToggleSwitch
+                      checked={editor.disableCooling}
+                      onChange={(value) => onChange('disableCooling', value)}
+                      disabled={disableControls || editor.saving || !editor.json}
+                      ariaLabel={t('auth_files.disable_cooling_label')}
+                    />
+                    <div className="hint">{t('auth_files.disable_cooling_hint')}</div>
+                  </div>
                   {supportsAuthFileWebsockets(editor.providerKey) && (
                     <div className="form-group">
                       <label>{t('auth_files.websockets_label')}</label>
diff --git a/src/features/authFiles/constants.ts b/src/features/authFiles/constants.ts
index be1db86c..8d72494a 100644
--- a/src/features/authFiles/constants.ts
+++ b/src/features/authFiles/constants.ts
@@ -194,6 +194,12 @@ export const parseDisableCoolingValue = (value: unknown): boolean | undefined =>
   return undefined;
 };
 
+export const readAuthFileDisableCooling = (value: Record<string, unknown>): boolean => {
+  const canonical = parseDisableCoolingValue(value.disable_cooling);
+  if (canonical !== undefined) return canonical;
+  return parseDisableCoolingValue(value['disable-cooling']) ?? false;
+};
+
 export const supportsAuthFileWebsockets = (providerKey: string): boolean =>
   AUTH_FILE_WEBSOCKET_PROVIDERS.has(normalizeProviderKey(providerKey));
 
diff --git a/src/features/authFiles/hooks/useAuthFilesPrefixProxyEditor.ts b/src/features/authFiles/hooks/useAuthFilesPrefixProxyEditor.ts
index 8a25244b..d6f286f2 100644
--- a/src/features/authFiles/hooks/useAuthFilesPrefixProxyEditor.ts
+++ b/src/features/authFiles/hooks/useAuthFilesPrefixProxyEditor.ts
@@ -8,6 +8,7 @@ import {
   applyAuthFileUsingApi,
   normalizeProviderKey,
   parsePriorityValue,
+  readAuthFileDisableCooling,
   readAuthFileWebsockets,
   readAuthFileUsingApi,
   supportsAuthFileWebsockets,
@@ -35,6 +36,7 @@ export type PrefixProxyEditorField =
   | 'proxyUrl'
   | 'priority'
   | 'weight'
+  | 'disableCooling'
   | 'websockets'
   | 'usingApi'
   | 'note'
@@ -59,6 +61,8 @@ export type PrefixProxyEditorState = {
   priority: string;
   weight: string;
   weightError: string | null;
+  disableCooling: boolean;
+  disableCoolingTouched: boolean;
   websockets: boolean;
   websocketsTouched: boolean;
   usingApi: boolean;
@@ -313,6 +317,18 @@ export const buildAuthFileFieldsPatch = (
     patch.weight = nextWeight;
   }
 
+  if (editor.disableCoolingTouched) {
+    const originalDisableCooling = readAuthFileDisableCooling(original);
+    const nextDisableCooling = Boolean(editor.disableCooling);
+    if (nextDisableCooling !== originalDisableCooling) {
+      const field =
+        original.disable_cooling === undefined && original['disable-cooling'] !== undefined
+          ? 'disable-cooling'
+          : 'disable_cooling';
+      patch[field] = nextDisableCooling;
+    }
+  }
+
   if (editor.noteTouched) {
     const originalNote = normalizeTextField(original.note);
     const nextNote = editor.note.trim();
@@ -400,6 +416,13 @@ const buildPrefixProxyUpdatedText = (
     }
   }
 
+  if (patch.disable_cooling !== undefined) {
+    next.disable_cooling = patch.disable_cooling;
+  }
+  if (patch['disable-cooling'] !== undefined) {
+    next['disable-cooling'] = patch['disable-cooling'];
+  }
+
   if (patch.note !== undefined) {
     if (patch.note) {
       next.note = patch.note;
@@ -483,6 +506,8 @@ export function useAuthFilesPrefixProxyEditor(
       priority: '',
       weight: '',
       weightError: null,
+      disableCooling: false,
+      disableCoolingTouched: false,
       websockets: false,
       websocketsTouched: false,
       usingApi: false,
@@ -534,6 +559,7 @@ export function useAuthFilesPrefixProxyEditor(
       const proxyUrl = typeof json.proxy_url === 'string' ? json.proxy_url : '';
       const priority = parsePriorityValue(json.priority);
       const weight = readCredentialWeight(json.weight);
+      const disableCooling = readAuthFileDisableCooling(json);
       const websockets = supportsAuthFileWebsockets(providerKey)
         ? readAuthFileWebsockets(json)
         : false;
@@ -564,6 +590,8 @@ export function useAuthFilesPrefixProxyEditor(
           priority: priority !== undefined ? String(priority) : '',
           weight: weight !== undefined ? String(weight) : '',
           weightError: null,
+          disableCooling,
+          disableCoolingTouched: false,
           websockets,
           websocketsTouched: false,
           usingApi,
@@ -606,6 +634,13 @@ export function useAuthFilesPrefixProxyEditor(
           weightError: error ? t(credentialWeightErrorKey(error)) : null,
         };
       }
+      if (field === 'disableCooling') {
+        return {
+          ...prev,
+          disableCooling: Boolean(value),
+          disableCoolingTouched: true,
+        };
+      }
       if (field === 'websockets') {
         return { ...prev, websockets: Boolean(value), websocketsTouched: true };
       }
diff --git a/src/i18n/locales/en.json b/src/i18n/locales/en.json
index 03755f8e..a0cf1d78 100644
--- a/src/i18n/locales/en.json
+++ b/src/i18n/locales/en.json
@@ -343,6 +343,8 @@
     "weight_hint": "Defaults to 1. Values at or below 0 exclude this credential from weighted scheduling; maximum 1,000,000.",
     "weight_invalid_integer": "Weight must be an integer.",
     "weight_invalid_max": "Weight cannot exceed 1,000,000.",
+    "disable_cooling_label": "Disable exponential cooldown (disable_cooling)",
+    "disable_cooling_hint": "Skip failure cooldown and exponential backoff only for this credential; other credentials are unaffected.",
     "websockets_label": "WebSockets (websockets)",
     "websockets_hint": "Enable Responses API websocket transport for this credential.",
     "using_api_label": "Use official API (using_api)",
diff --git a/src/i18n/locales/ru.json b/src/i18n/locales/ru.json
index f3c9fe71..5389368e 100644
--- a/src/i18n/locales/ru.json
+++ b/src/i18n/locales/ru.json
@@ -342,6 +342,8 @@
     "weight_hint": "По умолчанию 1. Значения ≤ 0 исключают эти учётные данные из взвешенного планирования; максимум 1 000 000.",
     "weight_invalid_integer": "Вес должен быть целым числом.",
     "weight_invalid_max": "Вес не может превышать 1 000 000.",
+    "disable_cooling_label": "Отключить экспоненциальный cooldown (disable_cooling)",
+    "disable_cooling_hint": "Отключает cooldown после ошибок и экспоненциальную задержку только для этих учётных данных; остальные не затрагиваются.",
     "websockets_label": "WebSockets (websockets)",
     "websockets_hint": "Включает websocket-транспорт Responses API для этих учётных данных.",
     "using_api_label": "Использовать официальный API (using_api)",
diff --git a/src/i18n/locales/zh-CN.json b/src/i18n/locales/zh-CN.json
index f68998ae..859ec319 100644
--- a/src/i18n/locales/zh-CN.json
+++ b/src/i18n/locales/zh-CN.json
@@ -343,6 +343,8 @@
     "weight_hint": "默认值为 1；小于或等于 0 时不参与加权调度；最大值为 1,000,000。",
     "weight_invalid_integer": "权重必须是整数。",
     "weight_invalid_max": "权重不能超过 1,000,000。",
+    "disable_cooling_label": "禁用指数冷却（disable_cooling）",
+    "disable_cooling_hint": "开启后，仅当前凭证跳过失败后的冷却与指数退避；其他凭证不受影响。",
     "websockets_label": "WebSockets（websockets）",
     "websockets_hint": "为该凭证开启 Responses API 的 websocket 传输。",
     "using_api_label": "使用官方 API（using_api）",
diff --git a/src/i18n/locales/zh-TW.json b/src/i18n/locales/zh-TW.json
index f17318c2..d7c90561 100644
--- a/src/i18n/locales/zh-TW.json
+++ b/src/i18n/locales/zh-TW.json
@@ -343,6 +343,8 @@
     "weight_hint": "預設值為 1；小於或等於 0 時不參與加權調度；最大值為 1,000,000。",
     "weight_invalid_integer": "權重必須是整數。",
     "weight_invalid_max": "權重不能超過 1,000,000。",
+    "disable_cooling_label": "停用指數冷卻（disable_cooling）",
+    "disable_cooling_hint": "開啟後，僅目前憑證會略過失敗後的冷卻與指數退避；其他憑證不受影響。",
     "websockets_label": "WebSockets（websockets）",
     "websockets_hint": "為該憑證開啟 Responses API 的 websocket 傳輸。",
     "using_api_label": "使用官方 API（using_api）",
diff --git a/src/services/api/authFiles.ts b/src/services/api/authFiles.ts
index 8a0121a8..74f67c2c 100644
--- a/src/services/api/authFiles.ts
+++ b/src/services/api/authFiles.ts
@@ -22,6 +22,8 @@ export type AuthFileFieldsPatch = {
   headers?: Record<string, string>;
   priority?: number;
   weight?: number | null;
+  disable_cooling?: boolean;
+  'disable-cooling'?: boolean;
   websockets?: boolean;
   using_api?: boolean;
   note?: string;
diff --git a/tests/authFileWeight.test.ts b/tests/authFileWeight.test.ts
index 79f2cdc5..3ef49064 100644
--- a/tests/authFileWeight.test.ts
+++ b/tests/authFileWeight.test.ts
@@ -3,6 +3,7 @@ import {
   buildAuthFileFieldsPatch,
   type PrefixProxyEditorState,
 } from '../src/features/authFiles/hooks/useAuthFilesPrefixProxyEditor';
+import { readAuthFileDisableCooling } from '../src/features/authFiles/constants';
 
 const makeEditor = (json: Record<string, unknown>, weight: string): PrefixProxyEditorState => ({
   fileName: 'credential.json',
@@ -20,6 +21,8 @@ const makeEditor = (json: Record<string, unknown>, weight: string): PrefixProxyE
   priority: '',
   weight,
   weightError: null,
+  disableCooling: false,
+  disableCoolingTouched: false,
   websockets: false,
   websocketsTouched: false,
   usingApi: false,
@@ -60,6 +63,55 @@ describe('auth-file credential weight patch', () => {
   });
 });
 
+describe('auth-file disable cooling patch', () => {
+  test('reads canonical and legacy boolean-compatible metadata', () => {
+    expect(readAuthFileDisableCooling({ disable_cooling: 'true' })).toBe(true);
+    expect(readAuthFileDisableCooling({ 'disable-cooling': 1 })).toBe(true);
+    expect(
+      readAuthFileDisableCooling({ disable_cooling: 'invalid', 'disable-cooling': true })
+    ).toBe(true);
+    expect(readAuthFileDisableCooling({ disable_cooling: false, 'disable-cooling': true })).toBe(
+      false
+    );
+  });
+
+  test('writes the canonical field when enabling the per-credential override', () => {
+    const editor = {
+      ...makeEditor({}, ''),
+      disableCooling: true,
+      disableCoolingTouched: true,
+    };
+
+    expect(buildAuthFileFieldsPatch(editor, resolveError)).toEqual({ disable_cooling: true });
+  });
+
+  test('preserves the legacy field name and writes false when disabling it', () => {
+    const editor = {
+      ...makeEditor({ 'disable-cooling': true }, ''),
+      disableCooling: false,
+      disableCoolingTouched: true,
+    };
+
+    expect(buildAuthFileFieldsPatch(editor, resolveError)).toEqual({ 'disable-cooling': false });
+  });
+
+  test('does not patch an untouched or unchanged override', () => {
+    expect(buildAuthFileFieldsPatch(makeEditor({ disable_cooling: true }, ''), resolveError)).toEqual(
+      {}
+    );
+    expect(
+      buildAuthFileFieldsPatch(
+        {
+          ...makeEditor({ disable_cooling: 'true' }, ''),
+          disableCooling: true,
+          disableCoolingTouched: true,
+        },
+        resolveError
+      )
+    ).toEqual({});
+  });
+});
+
 describe('auth-file excluded models patch', () => {
   test('writes normalized model patterns to the canonical field', () => {
     const editor = {