diff --git a/codex-rs/core/src/memories/mod.rs b/codex-rs/core/src/memories/mod.rs
index d796063d2d..9d9f40323d 100644
--- a/codex-rs/core/src/memories/mod.rs
+++ b/codex-rs/core/src/memories/mod.rs
@@ -67,7 +67,7 @@ mod phase_one {
 /// Phase 2 (aka `Consolidation`).
 mod phase_two {
     /// Default model used for phase 2.
-    pub(super) const MODEL: &str = "gpt-5.4";
+    pub(super) const MODEL: &str = "gpt-5.5";
     /// Default reasoning effort used for phase 2.
     pub(super) const REASONING_EFFORT: super::ReasoningEffort = super::ReasoningEffort::Medium;
     /// Lease duration (seconds) for phase-2 consolidation job ownership.