Update app.py

app.py

@@ -51,7 +51,7 @@ async def lifespan(app: FastAPI):
         cross_encoder_model = HuggingFaceCrossEncoder(model_name="BAAI/bge-reranker-base")
         # cross_encoder_model = HuggingFaceCrossEncoder(model_name="BAAI/bge-reranker-large")
         ml_models["reranker_compressor"] = CrossEncoderReranker(model=cross_encoder_model, top_n=5)
-        ml_models["llm"] = ChatGoogleGenerativeAI(model="gemini-1.5-flash", api_key=GOOGLE_API_KEY)
+        ml_models["llm"] = ChatGoogleGenerativeAI(model="gemini-2.0-flash", api_key=GOOGLE_API_KEY)
         ml_models["prompt_template"] = PromptTemplate.from_template(
          """
         You are an expert decision maker Assistant in the domain such as insurance, legal compliance, human resources, and contract management.