diff --git a/scripts/agents/ai_prompt.sh b/scripts/agents/ai_prompt.sh
index 9e305ab..16449e9 100644
--- a/scripts/agents/ai_prompt.sh
+++ b/scripts/agents/ai_prompt.sh
@@ -11,8 +11,7 @@ for bin in curl jq; do
   fi
 done
 
-MODEL_DEFAULT="gpt-4o-mini"
-MODEL="${OPENAI_MODEL:-$MODEL_DEFAULT}"
+MODEL="${OPENAI_MODEL}"
 API_BASE="${OPENAI_API_BASE:-https://api.openai.com/v1}"
 TEMPERATURE="${OPENAI_TEMPERATURE:-0.2}"