You’ve probably heard of ChatGPT, the artificial intelligence with which you can speak like a human. This AI is the brainchild of US company OpenAI, and is a variant of the company’s artificial language model known as GPT-3.5, “trained” to generate human-like text by inputting huge amounts of text. But have you ever wondered how it works?
How does ChatGPT work?
ChatGPT is an artificial intelligence that makes use of a neural network architecture (like a brain) and unsupervised learning to generate responses. In this way, and from the requests of the people who use it, it can learn to generate answers without the need to be explicitly told what the correct answer is, greatly expanding the range of conversations you can have with it.

In order to generate responses, ChatGPT uses what is known as a multilayer transformational network: a type of deep learning architecture that has proven its effectiveness in natural language processing (the one we humans use). The AI takes a sentence as input, processes it according to its internal knowledge, and finally generates a response relevant to the input sentence.
Furthermore, one of the main features of OpenAI’s AI is that it is capable of generating coherent responses taking into account the context of the conversation. That is, ChatGPT has the ability to understand the development of a conversation and generate responses that fit naturally with what has been previously said.
But it is not only capable of generating answers. ChatGPT’s capabilities include translating languages, summarizing texts, creating movie scripts or generating political speeches. Its great versatility in creating texts of all kinds has made it a popular tool, and its capabilities could be even greater once it makes use of GPT-4, the latest artificial language model created by OpenAI.
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