Update app.py

app.py

@@ -9,6 +9,7 @@ from langchain.chains import RetrievalQA
 from langchain.chat_models import ChatOpenAI
 from typing import List
 from together import Together
+from langchain.embeddings import HuggingFaceEmbeddings
 
 st.set_page_config(page_title="چت‌ بات ارتش", page_icon="🪖", layout="wide")
 
@@ -88,7 +89,7 @@ def get_pdf_index():
         texts = text_splitter.split_documents(documents)
 
         embeddings = HuggingFaceEmbeddings(
-            model_name="sentence-transformers/all-MiniLM-L6-v2"  
+            model_name="deepseek-ai/DeepSeek-R1" 
         )
 
         index = FAISS.from_documents(texts, embeddings)
@@ -97,9 +98,8 @@ def get_pdf_index():
 index = get_pdf_index()
 
 llm = HuggingFaceHub(
-    repo_id="HuggingFaceH4/zephyr-7b-alpha",  # یا مدل دلخواهت مثل llama یا mistral
-    model_kwargs={"temperature": 0.7, "max_new_tokens": 512},
-    huggingfacehub_api_token="توکن شما"
+    repo_id="deepseek-ai/DeepSeek-R1",  
+    model_kwargs={"temperature": 0.7, "max_new_tokens": 512}
 )
 
 chain = RetrievalQA.from_chain_type(