Update app.py

app.py

@@ -23,9 +23,9 @@ class PDFQAProcessor:
 
     llm = ChatGroq(
         # model_name="deepseek-r1-distill-llama-70b",
-        model_name="llama3-70b-8192",
+        model_name="llama-3.3-70b-versatile",
         temperature=0.1,
-        max_tokens=3000,
+        max_tokens=8000,
         api_key = os.getenv('GROQ_API_KEY')
     )
 
@@ -46,8 +46,8 @@ class PDFQAProcessor:
     # )
 
     embeddings = GoogleGenerativeAIEmbeddings(model="models/embedding-001")
-    CHUNK_SIZE = 700
-    CHUNK_OVERLAP = 150
+    CHUNK_SIZE = 550
+    CHUNK_OVERLAP = 80
     text_splitter = RecursiveCharacterTextSplitter(chunk_size=CHUNK_SIZE,chunk_overlap = CHUNK_OVERLAP)
     # persist_directory="./chroma_db"
 
@@ -81,7 +81,7 @@ class PDFQAProcessor:
                 splits,
                 self.embeddings
             )
-            self.retriever = self.vectorstore.as_retriever(search_kwargs={"k": 10})
+            self.retriever = self.vectorstore.as_retriever(search_kwargs={"k": 18})
             return "PDFs processed successfully! Ask your questions now."
         
         except Exception as e: