diff --git a/backend/src/ai/LocalAIApi.js b/backend/src/ai/LocalAIApi.js
index fd571ae..c499d83 100644
--- a/backend/src/ai/LocalAIApi.js
+++ b/backend/src/ai/LocalAIApi.js
@@ -283,7 +283,7 @@ function config() {
     projectId,
     projectUuid: process.env.PROJECT_UUID || null,
     projectHeader: process.env.AI_PROJECT_HEADER || "project-uuid",
-    defaultModel: process.env.AI_DEFAULT_MODEL || "gpt-5-mini",
+    defaultModel: process.env.AI_DEFAULT_MODEL || "gpt-5.2-codex",
     timeout,
     verifyTls,
   };