What Happens Inside an LLM When You Hit "Send"?

Posted on Fri 04 September 2026 in Beginner Guide • Tagged with GenAI, LLM, deep-learning, tokenization, beginner

Why This Matters

You type a message into ChatGPT or Claude, hit send, and a few seconds later, words start appearing on screen. For most people, that gap in between is a black box. For a beginner learning GenAI, understanding what actually happens in that gap is one of the …


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What is a Token? Why Do LLMs Charge You Per Token?

Posted on Wed 26 August 2026 in Tokens • Tagged with GenAI, LLM, tokens, tokenization, pricing, beginner

Why This Matters

If you've used the OpenAI or Claude API even once, you've seen the word "tokens" everywhere — in the pricing page, in the error messages ("context length exceeded"), in the response object. For a beginner, this is confusing. Why not just charge per word? Or per API call …


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