OpenAIâ\euro™s continuous efforts to push our knowledge and build on it for natural language processing have led to the development of GPT-4, the highly acclaimed successor of GPT-3. Built upon the Generative Pretrained Transformer architecture (GPT), it showcases significant advancements in natural language processing, as it now incorporates image handling capabilities alongside its vast data and computational resources. This article delves into a comprehensive comparison between GPT-3 and GPT-4 exploring their similarities, differences, cost of implementation etc. Through a comprehensive analysis of their conversational abilities, accuracy, creativity, and reliability, this article offers valuable insights into the distinctive features and performance enhancements of GPT-4 over its predecessor. As the latest iteration of OpenAIâ\euro™s language models, GPT-4 promises to redefine the landscape of natural language processing and unlock new possibilities in various domains.Â