ChatGPT is part of a broader family of models known as GPT, with its current version, GPT-4, being the latest and most advanced. The journey began with the release of GPT-1 in 2018, which demonstrated the potential of transformers in natural language processing (NLP). GPT-2, released in 2019, significantly improved upon its predecessor, showcasing an unprecedented ability to generate coherent and contextually relevant text. The trend continued with GPT-3 in 2020, which further refined these capabilities and expanded the model's size to 175 billion parameters. GPT-4, the foundation of ChatGPT, has pushed the boundaries even further, making AI-generated text almost indistinguishable from that written by humans.
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