diff --git a/apps/ai-game-creator-shell/src/features/runtime-config/RuntimeConfigDialog.tsx b/apps/ai-game-creator-shell/src/features/runtime-config/RuntimeConfigDialog.tsx
index da0075a02..289a0cfbb 100644
--- a/apps/ai-game-creator-shell/src/features/runtime-config/RuntimeConfigDialog.tsx
+++ b/apps/ai-game-creator-shell/src/features/runtime-config/RuntimeConfigDialog.tsx
@@ -794,26 +794,8 @@ export function RuntimeConfigDialog({
                   </div>
                   {runtimeConfigDraft.agentMode !== 'codex_cli' ? (
                     <>
-                      <label>
-                        推理档
-                        <select
-                          aria-label="推理档"
-                          value={runtimeConfigDraft.llm.reasoningEffort}
-                          onChange={(event) =>
-                            updateRuntimeLlmConfig(
-                              'reasoningEffort',
-                              event.currentTarget
-                                .value as GameCreatorLlmReasoningEffort,
-                            )
-                          }
-                        >
-                          {gameCreatorLlmReasoningEfforts.map((effort) => (
-                            <option key={effort} value={effort}>
-                              {effort}
-                            </option>
-                          ))}
-                        </select>
-                      </label>
+                      {/* 推理档已下移到对话输入盒的模型选择器旁（按回合生效），
+                          设置里不再重复一份。 */}
                       <label className="settings-checkbox">
                         <input
                           aria-label="流式输出"
diff --git a/apps/ai-game-creator-shell/tests/appSurface/runtime-settings.suite.ts b/apps/ai-game-creator-shell/tests/appSurface/runtime-settings.suite.ts
index 0811cd81b..d78f10a0d 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/runtime-settings.suite.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/runtime-settings.suite.ts
@@ -660,7 +660,7 @@ export function registerRuntimeSettingsTests() {
     expect(
       await screen.findByRole('dialog', { name: '运行时配置' }),
     ).not.toBeNull();
-    fireEvent.keyDown(screen.getByLabelText('推理档'), {
+    fireEvent.keyDown(screen.getByLabelText('联网检索'), {
       key: 'Escape',
     });
     expect(screen.getByRole('dialog', { name: '运行时配置' })).not.toBeNull();
@@ -877,12 +877,8 @@ export function registerPublishedRuntimeSettingsTests() {
     expect(screen.getByText('所有角色使用统一账号服务')).not.toBeNull();
 
     fireEvent.click(screen.getByRole('button', { name: /常用设置/ }));
-    expect(screen.getByLabelText('推理档')).toHaveProperty('value', 'medium');
-    expect(
-      within(screen.getByLabelText('推理档')).getByRole('option', {
-        name: 'max',
-      }),
-    ).not.toBeNull();
+    // 推理档已下移到对话输入盒（模型选择器旁），设置面板里不再有第二个入口。
+    expect(screen.queryByLabelText('推理档')).toBeNull();
     fireEvent.click(screen.getByLabelText('流式输出'));
     fireEvent.click(screen.getByLabelText('联网检索'));
     fireEvent.click(screen.getByRole('button', { name: /高级参数/ }));
@@ -1000,7 +996,7 @@ export function registerPublishedRuntimeSettingsTests() {
     expect(screen.queryByLabelText('LLM API Key')).toBeNull();
     expect(screen.queryByLabelText('LLM Base URL')).toBeNull();
     expect(screen.queryByLabelText('LLM 模型')).toBeNull();
-    expect(screen.getByLabelText('推理档')).toHaveProperty('value', 'high');
+    expect(screen.queryByLabelText('推理档')).toBeNull();
     expect(screen.getByLabelText('联网检索')).toHaveProperty('checked', true);
     fireEvent.click(screen.getByRole('button', { name: /Agent 分工/ }));
     expect(screen.getByText('所有角色使用统一账号服务')).not.toBeNull();