I am writing on how CHATGPT operates and works and thought of converting it into a book. Have also included some programming code, the book contains lot of content for present and for making future AI models. I left coding long back but hope the coding provided in this book it helps everyone to design their own AI models. The book has been kept finite as always there is no end to what one can write on this huge topic. I only know all the programming languages and technologies in brief, and I am not an expert in them. Here is a brief 'Decoding ChatGPT and artificial intelligence involves unraveling the intricacies of an advanced language model like ChatGPT, developed by OpenAI. Operating on the GPT-3.5 architecture, ChatGPT is a powerful tool designed for natural language understanding and generation. Its capabilities stem from extensive training on diverse datasets, enabling it to comprehend and generate coherent responses across a wide array of topics. However, the underlying challenge lies in understanding the model's limitations, potential biases, and the ethical considerations associated with its deployment. As artificial intelligence continues to evolve, decoding ChatGPT requires a nuanced examination of its training data, the algorithms governing its responses, and the ongoing efforts to strike a balance between technological advancement and responsible usage, emphasizing the critical role of ethical frameworks in guiding the development and deployment of AI systems.'