Let’s Build It: A Complete Guide to Tokenization in LLMs by Building the GPT Tokenizer
Let’s Build It: A Complete Guide to Tokenization in LLMs by Building the GPT Tokenizer – Ever asked ChatGPT to count the letters in a word and gotten the wrong answer? Or noticed it struggles with simple spelling tasks? You’re not imagining things. The culprit isn’t the neural network itself…it’s something far more fundamental happening before the AI even “sees” your text.
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