Update app.py

app.py

@@ -11,13 +11,12 @@ from langchain.prompts import PromptTemplate
 
 # ⚙️ Modelo mais robusto para Spaces com GPU (pode mudar para mistralai/Mistral-7B-Instruct ou zephyr-7b-beta)
 pipe = pipeline(
-    "text2text-generation",
-    model="mistralai/Mistral-7B-Instruct",
-    max_new_tokens=1024,
+      "text2text-generation",
+    model="google/flan-t5-large",
+    max_new_tokens=512,
     do_sample=True,
-    temperature=0.3,
-    repetition_penalty=1.1
-)
+    temperature=0.3
+    )
 llm = HuggingFacePipeline(pipeline=pipe)
 
 # 🧠 Memória de curto prazo para manter conversas coerentes