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Quoting myself from the previous thread: https://news.ycombinator.com/item?id=38675055

> As usual, LLMs will hallucinate if you ask it about itself.

> /r/ChatGPT is getting worse about that somehow.

Nothing strange about it, /r/chatgpt was all people closely following developments from GPT-3 when it started. Since then:

https://subredditstats.com/r/chatgpt

The employee described it as "very weird and oddly consistent" though.

It could be something as mundane as making a portmanteau of "gpt-4" and "gpt-3.5-turbo" to get "gpt-4.5-turbo".

Tokeninazation make this kind of “dyslexia” very unlikely

Sometimes yes, but in this case you can verify that in the phrase "gpt-3.5-turbo", the only doubled up characters are "gpt-3.5-turbo", so the number can still be wrong by swapping a single token.

https://platform.openai.com/tokenizer

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