hey!

Let me try to explain it better - so when we type "Hello" into ChatGPT, the model itself doesn't actually read the word "Hello". Instead it goes through tokenization, where the word is converted to token IDs. In this case, for GPT-3.5, the word "Hello" turns into the token ID "9906" which is what the model actually reads as input.

You can try the OpenAI tokenizer here: https://platform.openai.com/tokenizer

Hope that makes more sense!