diff --git a/src/main.py b/src/main.py
index 294bbb1..3fd9bbd 100644
--- a/src/main.py
+++ b/src/main.py
@@ -44,6 +44,16 @@ async def generate(
             ephemeral=True
         )
         return
+    
+    MAX_PROMPT_LENGTH = 500
+
+    if len(prompt) > MAX_PROMPT_LENGTH:
+        await interaction.followup.send(f"Prompt too long! Maximum {MAX_PROMPT_LENGTH} chars allowed.")
+        return
+
+    if len(negative) > MAX_PROMPT_LENGTH:
+        await interaction.followup.send(f"Negative Prompt too long! Maximum {MAX_PROMPT_LENGTH} chars allowed.")
+        return
 
     await interaction.response.defer(thinking=True)