Update app.py

app.py

@@ -150,7 +150,7 @@ Context Excerpts:
 @handle_errors
 def qa_pdf(_pdf_file_path, query, num_clusters=5):
     embeddings_model = OpenAIEmbeddings(model="text-embedding-3-small", api_key=openai_api_key)
-    llm = ChatOpenAI(model="gpt-4", api_key=openai_api_key, temperature=0.3)
+    llm = ChatOpenAI(model="gpt-3.5-turbo", api_key=openai_api_key, temperature=0.3)
     
     prompt = ChatPromptTemplate.from_template(
         """Answer this question: {question}
@@ -190,7 +190,7 @@ def process_pdf(_pdf_file_path):
     scale_factor = 300 / 50  # High-res to low-res ratio
     
     for page in doc:
-        low_res = page.get_pixmap(dpi=50)
+        low_res = page.get_pixmap(dpi=300)
         low_res_img = np.frombuffer(low_res.samples, dtype=np.uint8).reshape(low_res.height, low_res.width, 3)
         
         results = model.predict(low_res_img)