eli5: Why does ChatpGPT give responses word-by-word, instead of the whole answer straight away?

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This goes for almost all AI language models that I’ve used.

I ask it a question, and instead of giving me a paragraph instantly, it generates a response word by word, sometimes sticking on a word for a second or two. Why can’t it just paste the entire answer straight away?

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28 Answers

Anonymous 0 Comments

This is a pretty simple answer. LLMs like ChatGPT do not have fully formed thoughts, they generate what you read word for word based on it’s training data.

It literally has no idea what word will come next until the previous word has been output.

Now they could, if they wanted, program in a delay, where the server buffers up all the words and prints them all at once. But that is extra complexity and server overhead that nobody wants to pay for.

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