diff --git a/README.md b/README.md
index 0db3ec6..99d2a34 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,52 @@ api.clear_conversations()  # clear all conversations
 api.refresh_chat_page()  # refresh the chat page
 ```
 
+
+#### Summarization using ChatGPT
+
+```python
+from pyChatGPT import ChatGPT
+
+session_token = 'abc123'  # `__Secure-next-auth.session-token` cookie from https://chat.openai.com/chat
+api = ChatGPT(session_token)  # auth with session token
+api = ChatGPT(session_token, conversation_id='some-random-uuid')  # specify conversation id
+api = ChatGPT(session_token, proxy='https://proxy.example.com:8080')  # specify proxy
+api = ChatGPT(session_token, chrome_args=['--window-size=1920,768'])  # specify chrome args
+api = ChatGPT(session_token, moderation=False)  # disable moderation
+api = ChatGPT(session_token, verbose=True)  # verbose mode (print debug messages)
+
+# auth with google login
+api = ChatGPT(auth_type='google', email='example@gmail.com', password='password')
+# auth with microsoft login
+api = ChatGPT(auth_type='microsoft', email='example@gmail.com', password='password')
+# auth with openai login (captcha solving using speech-to-text engine)
+api = ChatGPT(auth_type='openai', email='example@gmail.com', password='password')
+# auth with openai login (manual captcha solving)
+api = ChatGPT(
+    auth_type='openai', captcha_solver=None,
+    email='example@gmail.com', password='password'
+)
+# auth with openai login (2captcha for captcha solving)
+api = ChatGPT(
+    auth_type='openai', captcha_solver='2captcha', solver_apikey='abc',
+    email='example@gmail.com', password='password'
+)
+# reuse cookies generated by successful login before login,
+# if `login_cookies_path` does not exist, it will process logining  with `auth_type`, and save cookies to `login_cookies_path`
+# only works when `auth_type` is `openai` or `google`
+api = ChatGPT(auth_type='openai', email='example@xxx.com', password='password',
+    login_cookies_path='your_cookies_path',
+)
+
+resp = api.send_message("summarize text into 50 words: Alzheimer's disease (AD) is a neurodegenerative disease that usually starts slowly and progressively worsens.[2] It is the cause of 60–70% of cases of dementia.[2][11] The most common early symptom is difficulty in remembering recent events.[1] As the disease advances, symptoms can include problems with language, disorientation (including easily getting lost), mood swings, loss of motivation, self-neglect, and behavioral issues.[2] As a person's condition declines, they often withdraw from family and society.[12] Gradually, bodily functions are lost, ultimately leading to death.[13] Although the speed of progression can vary, the typical life expectancy following diagnosis is three to nine years.")
+
+print(resp['message'])
+
+api.reset_conversation()  # reset the conversation
+api.clear_conversations()  # clear all conversations
+api.refresh_chat_page()  # refresh the chat page
+```
+
 ## Frequently Asked Questions
 
 ### How do I get it to work on headless linux server?