pip install openai

llm = OpenAI(temperature=0.7)

response = llm(“What is Generative AI?”)

print(response)

from langchain.chains import LLMChain

prompt = PromptTemplate(

input_variables=[“topic”],

template=”Explain {topic} like I’m 5 years old.”

)

chain = LLMChain(llm=llm, prompt=prompt)

print(chain.run(“machine learning”))

from langchain.chains import ConversationChain

memory = ConversationBufferMemory()

chat = ConversationChain(llm=llm, memory=memory)

chat.run(“Hi, my name is Tania.”)

chat.run(“What is my name?”)

from langchain.vectorstores import FAISS

from langchain.embeddings import OpenAIEmbeddings

from langchain.chains import RetrievalQA

loader = PyPDFLoader(“report.pdf”)

docs = loader.load()

db = FAISS.from_documents(docs, OpenAIEmbeddings())

retriever = db.as_retriever()

qa = RetrievalQA.from_chain_type(llm=llm, retriever=retriever)

qa.run(“What is the summary of the report?”)