This is a system that creates sentences as a response to sentences inputted by others, based on the guess of "what kind of words would make a good response". The system creates sentences based on the results of learning the relationship between words using a large amount of sentence data and calculating "this word is likely to come next to this word". The "learning" here is to grasp features and trends at a level of detail that is no longer recognizable by humans.
This is one of the results of the development of attempts to make AI understand human words and sentences. The sentences produced by the chat GPT, which uses a learning model called "Transformer," surprised the world by being much easier to understand than expected. Specifically, in response to human input, it not only answers questions, but also shortens the points of sentences, writes business proposals, and so on.

In addition to text generation AIs such as Chat GPT, there are image generation AIs that can create photos and illustrations, and voice generation AIs that can create human-readable voice. They all work in basically the same way. Image generation AI learns the relationship between words and images, and speech generation AI learns the relationship between words and speech from a great deal of data. As a result, it creates images and sounds by calculating the most appropriate one for the input text.

There has been a lot of talk on social networking sites and elsewhere about the fact that the answers given by generative AI are wrong or that the content does not actually exist. Many people think that generative AI "tells you the answer to a question," but this is not really the case. Sentence generation AI produces sentences based on the criteria of which word has the highest probability of coming next and is the most natural. It does not place the highest priority on whether the content of the sentence is true or not. Sentence generation AIs are only intended to create sentences, so it would be strange to make it a matter of whether the content is "false" or "true" in the first place. If you want to look up an "answer" somewhere on the Internet, you would use a "search" tool, not a sentence generation AI.

Search is a word search, where you type in a word and it brings up sites and pages with content and images similar to it. Search only guides you to what already exists, but it does not create anything.
The difference is that generative AI creates something new by drawing illustrations or converting them to voice based on the characteristics and trends it has learned from a large amount of data. In the case of sentence generation, every sentence is a different rearrangement or combination of existing words, so it can be said that the AI is coming up with new combinations, in other words, creating new sentences. None of this is the same as borrowing another sentence, image, or sound from somewhere on the Internet.

When many people think of AI, they think of Doraemon, the cat-shaped robot character from a national cartoon. Today's generative AI is like Doraemon, who can give very good advice and teach you how to study. But the really amazing thing about Doraemon is that he has a 4-dimensional pocket and can provide secret tools to Nobita according to his situation. In fact, the AI that everyone is really looking for is "Doraemon + secret tools. And I foresee a future in which it will be connected to various applications and software as a secret tool. When that happens, we will see more use of generative AI in our daily lives.
AI is superior to humans in terms of calculation speed, accuracy, and the amount of information it learns. It is often said that "AI will take over our jobs in the future," as it has already been entrusted with driving cars and trains. I hope that as many people as possible will be able to get along with Doraemon, build a proper relationship with Doraemon, and be able to use the generated AI. I hope that as many people as possible will be able to get along with Doraemon, build a proper relationship with Doraemon, and become proficient in using AI.