1.1 Introduction

• Language models are artificial intelligence (AI) systems that are trained to generate and understand human language.
• ChatGPT is a state-of-the-art language model developed by OpenAI, a leading AI research institute.

1.2 The Evolution of Language Models

• Language models have a long history, with early examples dating back to the 1950s.
• Over the years, advances in computing power and data storage have enabled the development of larger and more sophisticated language models.

1.3 OpenAI and its Mission

• OpenAI is a non-profit research institute founded in 2015 with the goal of promoting and developing friendly AI.
• OpenAI has been at the forefront of AI research and development, with a focus on language models.

1.4 The Purpose of this Book

• This book aims to provide a comprehensive overview of ChatGPT, from its development to its capabilities and future potential.
• It covers the technical details of ChatGPT and its place in the field of NLP and language models, as well as its practical applications and ethical considerations.

In this chapter, we have introduced the concept of language models, provided a brief history of their evolution, and introduced OpenAI and its mission. We have also outlined the purpose of this book and what it aims to cover.