Upload 3 files

agent.py

@@ -15,6 +15,9 @@ from langchain_core.messages import SystemMessage, HumanMessage
 from langchain_core.tools import tool
 from langchain.tools.retriever import create_retriever_tool
 from supabase.client import Client, create_client
+from langchain_openai import ChatOpenAI
+from langchain_anthropic import ChatAnthropic
+
 
 load_dotenv()
 
@@ -171,10 +174,8 @@ def build_graph(provider: str = "openai"):
     """Build the graph"""
     # Load environment variables from .env file
     if provider == "openai":
-        from langchain.chat_models import ChatOpenAI
         llm = ChatOpenAI(model_name="gpt-4", temperature=0)
     elif provider == "anthropic":
-        from langchain.chat_models import ChatAnthropic
         llm = ChatAnthropic(model="claude-v1", temperature=0)
     elif provider == "google":
         # Google Gemini

requirements.txt

@@ -1,7 +1,6 @@
 gradio
 requests
 langchain
-langchain-community
 langchain-core
 langchain-google-genai
 langchain-huggingface
@@ -17,6 +16,7 @@ wikipedia
 pgvector
 python-dotenv
 sentence-transformers
-langchain 
-openai 
+openai
 anthropic
+langchain-openai
+langchain-anthropic