Chatbot GPT is an artificial intelligence system developed by OpenAI, specialized in solving questions and handling language-related tasks. Built on top of the GPT (Generative Pre-trained Transformer) neural network model, this chatbot is capable of predicting and generating answers based on the data and knowledge it has been trained on.

How to register for free GPT Chat:
Step 1: Access the link to register for an OpenAI account
Click “sign up” to register
Step 2: Enter your account registration email.
Enter your email address
Step 3: Go to the mailbox of the email you just entered to activate your ChatGPT account.
Click “verify email address”
Note: If you don't see OpenAI's mail sent, please check your spam mailbox, spam ...
Step 4: Return to the OpenAI page to log in to your account.
Login to ChatGPT
Step 5: Verify phone number.
Enter verification phone number
Step 6: Enter the confirmation code sent to the phone number you just entered.

After successfully entering the confirmation code, you have completed the ChatGPT account registration. From now on you can access GPT Chat to use at any time.

Note that using GPT Chat through OpenAI's API may charge a fee and you will be charged based on the number of API requests you send. Specific rates can be found on the OpenAI website.