diff --git a/.env.template b/.env.template
index ae2cb1338..376233b1f 100644
--- a/.env.template
+++ b/.env.template
@@ -21,6 +21,7 @@ LLM_PROVIDER="openai"
 LLM_ENDPOINT=""
 LLM_API_VERSION=""
 LLM_MAX_TOKENS="16384"
+LLM_INSTRUCTOR_MODE="json_schema_mode" # this mode is used for gpt-5 models
 
 EMBEDDING_PROVIDER="openai"
 EMBEDDING_MODEL="openai/text-embedding-3-large"