What is the total number of web pages used to train ChatGPT-3.5, and what methods are employed to ensure the veracity of the vast data while filtering out inaccurate information?

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2 Answers 2


What is the total number of web pages used to train ChatGPT-3.5

This information hasn't been released. For comparison, here's the GPT-3 training data size, from https://arxiv.org/pdf/2005.14165.pdf:

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"Number of web pages" isn't really a meaningful measure. The usual measure is "number of tokens", where a token is, on average, about three-quarters of a word. GPT-3 was trained on roughly 430 billion tokens of web content (plus data from other sources); detailed training information for ChatGPT-3.5 has not been released.

The usual method for ensuring veracity in large datasets is to assume that accurate information is repeated, while erroneous information is unique. This results in accurate information being reinforced during training when it's encountered many times. However, in practice, widespread errors and well-known falsehoods also get reinforced. (Alpaca, for example, gives a well-known but incorrect explanation when asked about the origin of the word "posh".)

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