The AI system used by OpenAI is called GPT-3, which stands for Generative Pre-trained Transformer 3. GPT-3 is a state-of-the-art language processing model that has been trained on a vast amount of internet text data. It is known for its ability to understand and generate human-like text in a wide range of domains and languages.GPT-3 consists of 175 billion parameters, making it one of the largest language models ever created. These parameters are used to generate text based on the context and prompt given to the model. The model has been trained using unsupervised learning, which means it does not require explicit instructions to generate text.GPT-3 has a wide range of applications, including natural language understanding, conversational agents, chatbots, language translation, content generation, and much more. It has been used to develop various tools and products that leverage its advanced text generation capabilities.The development and training of GPT-3 required a significant amount of computational resources and data. OpenAI used a large-scale distributed system to train the model, which involved training over multiple GPU clusters for several weeks. The fine-tuning process involved more specific tasks and data to tailor the model's behavior for different applications.GPT-3 has garnered significant attention and interest due to its impressive language generation capabilities. However, it is worth noting that the model also has limitations. For example, it can sometimes produce incorrect or misleading information, and it may struggle with understanding nuanced or complex prompts. OpenAI continuously works to address these limitations and improve the performance of their language models.