Most devs don't understand how LLM tokens work
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Most devs are using LLMs daily but don't have a clue about some of the fundamentals. Understanding tokens is crucial because you need to know how you're being billed, and why billing is different per provider. Join my newsletter on AI Hero: https://www.aihero.dev/s/y-newsletter Code: https://github.com/mattpocock/ai-sdk-tips/tree/main/exercises/03-tokens 00:00 Intro 00:33 Input & Output Tokens 01:11 Monitoring Token Usage 02:16 What are tokens? 02:50 Tiktoken 03:47 Full LLM Process 04:49 Building Token Vocabularies 05:25 Character-Level Tokenizer 06:37 Vocabulary Size 07:20 Subword-Level Tokenizer 08:33 Building Longer Subwords 08:58 Unusual Words 09:45 Summary
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