diff --git a/shared/modelConstants.js b/shared/modelConstants.js
index d7aaac4c..776060f7 100644
--- a/shared/modelConstants.js
+++ b/shared/modelConstants.js
@@ -59,6 +59,7 @@ export const CURSOR_MODELS = {
  */
 export const CODEX_MODELS = {
   OPTIONS: [
+    { value: "gpt-5.5", label: "GPT-5.5" },
     { value: "gpt-5.4", label: "GPT-5.4" },
     { value: "gpt-5.4-mini", label: "GPT-5.4 mini" },
     { value: "gpt-5.3-codex", label: "GPT-5.3 Codex" },