And this

Author: roblourens

src/platform/configuration/common/configurationService.ts

@@ -740,7 +740,7 @@ export namespace ConfigKey {
 	/** Configure reasoning effort sent to Responses API */
 	export const ResponsesApiReasoningEffort = defineExpSetting<'low' | 'medium' | 'high' | 'default'>('chat.responsesApiReasoningEffort', 'default');
 	/** Configure reasoning summary style sent to Responses API */
-	export const ResponsesApiReasoningSummary = defineExpSetting<'off' | 'detailed'>('chat.responsesApiReasoningSummary', 'off');
+	export const ResponsesApiReasoningSummary = defineExpSetting<'off' | 'detailed'>('chat.responsesApiReasoningSummary', 'detailed');
 
 	/** Add context from recently used files */
 	export const TemporalContextInlineChatEnabled = defineExpSetting<boolean>('chat.editor.temporalContext.enabled', false);