diff --git a/packages/ai/CHANGELOG.md b/packages/ai/CHANGELOG.md
index 0e7a09d5..9417c0f4 100644
--- a/packages/ai/CHANGELOG.md
+++ b/packages/ai/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Fixed
+
+- Set OpenAI Responses API requests to `store: false` by default to avoid server-side history logging ([#1308](https://github.com/badlogic/pi-mono/issues/1308))
+
 ## [0.52.6] - 2026-02-05
 
 ## [0.52.5] - 2026-02-05
diff --git a/packages/ai/src/providers/openai-responses.ts b/packages/ai/src/providers/openai-responses.ts
index f96215a1..2d4b114d 100644
--- a/packages/ai/src/providers/openai-responses.ts
+++ b/packages/ai/src/providers/openai-responses.ts
@@ -206,6 +206,7 @@ function buildParams(model: Model<"openai-responses">, context: Context, options
 		stream: true,
 		prompt_cache_key: cacheRetention === "none" ? undefined : options?.sessionId,
 		prompt_cache_retention: getPromptCacheRetention(model.baseUrl, cacheRetention),
+		store: false,
 	};
 
 	if (options?.maxTokens) {