Update app.py

app.py

@@ -4,11 +4,10 @@ import os
 from transformers import AutoModelForCausalLM, AutoTokenizer, pipeline
 
 # ---- Hugging Face model: use a public chat/instruct model ----
-model_id = "google/flan-t5-base"
-from transformers import pipeline
-llm = pipeline("text2text-generation", model=model_id)
-# (Update llm call in your code accordingly)
-
+model_id = "TinyLlama/TinyLlama-1.1B-Chat-v1.0"
+tokenizer = AutoTokenizer.from_pretrained(model_id)
+model = AutoModelForCausalLM.from_pretrained(model_id)
+llm = pipeline("text-generation", model=model, tokenizer=tokenizer)
 
 # --- SAP Sales Order Header tool ---
 def fetch_sales_order_headers():