Update app.py

app.py

@@ -7,7 +7,7 @@ BaseApi = "https://api.openai.com/v1"
 
 # Rate limits for each model
 RateLimitPerModel = {
-    "gpt-3.5-turbo": 3500,
+    "gpt-3.5-turbo": 2000, # New pay-as-go keys start with 2k for 48 hours
     "gpt-4": 200,
     "gpt-4-32k": 1000
 }