diff --git a/services/llm.ts b/services/llm.ts
index 483b6fe..80c439a 100644
--- a/services/llm.ts
+++ b/services/llm.ts
@@ -115,7 +115,6 @@ You are a professional podcaster. Create a detailed podcast script based on the
 - The podcast name must be "自動生成ポッドキャスト"
 
 **Format Requirements:**
-- Length: 1000-5000 characters (Japanese)
 - Use natural, conversational Japanese language suitable for audio
 - Write in a engaging podcast style with smooth transitions between topics
 - There is only **one speaker** in the podcast, so use first-person perspective
@@ -153,7 +152,6 @@ ${articleDetails}
         { role: "user", content: sendContent.trim() },
       ],
       temperature: 0.4,
-      max_completion_tokens: 2500,
       reasoning_effort: "high",
     });