It's not really "its" achievement. There are many open source repositories of Flappy Bird that it was trained on and there are many brilliant engineers at Google and OpenAI who have worked on LLM technology. It is their achievement if anything. It is a product. A product of others' achievement. You don't say Excel had an achievement when it calculates a good formula for you? Do you say a neural network that produces great speech to text had an achievement? Or do say the people who developed it did.