diff --git a/codex-rs/core/src/config/types.rs b/codex-rs/core/src/config/types.rs
index ef4886c32..98be36742 100644
--- a/codex-rs/core/src/config/types.rs
+++ b/codex-rs/core/src/config/types.rs
@@ -26,7 +26,7 @@ pub const DEFAULT_OTEL_ENVIRONMENT: &str = "dev";
 pub const DEFAULT_MEMORIES_MAX_ROLLOUTS_PER_STARTUP: usize = 16;
 pub const DEFAULT_MEMORIES_MAX_ROLLOUT_AGE_DAYS: i64 = 30;
 pub const DEFAULT_MEMORIES_MIN_ROLLOUT_IDLE_HOURS: i64 = 6;
-pub const DEFAULT_MEMORIES_MAX_RAW_MEMORIES_FOR_GLOBAL: usize = 1_024;
+pub const DEFAULT_MEMORIES_MAX_RAW_MEMORIES_FOR_GLOBAL: usize = 256;
 pub const DEFAULT_MEMORIES_MAX_UNUSED_DAYS: i64 = 30;
 
 #[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq, JsonSchema)]