diff --git a/modules/features/ai.nix b/modules/features/ai.nix
index 21c5886..0e7bec1 100644
--- a/modules/features/ai.nix
+++ b/modules/features/ai.nix
@@ -1,12 +1,6 @@
 { inputs, ... }:
 let
-  sharedContext = ''
-    # AI Global Context
-
-    This shared Codex and Gemini context is intentionally minimal for now.
-
-    TODO: add persistent global AI instructions.
-  '';
+  sharedContext = "";
 in
 {
   flake.modules.nixos.ai = {
@@ -51,7 +45,7 @@ in
         package = pkgs.llm-agents.codex;
         context = sharedContext;
         settings = {
-          model = "gpt-5.4";
+          model = "gpt-5.5";
           model_reasoning_effort = "high";
           plan_mode_reasoning_effort = "high";
           tui.status_line = [