Copilotfree, in-browser
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
Ask me anything about your lessons or your code.
“What is a port?” · “Why is my code erroring?”
A large language model does one thing: guess the next token. Everything a chatbot appears to do is built on that single trick.
How Language Models Work
A large language model does one thing: guess the next token. Everything a chatbot appears to do is built on that single trick.
Prompt Engineering
The model doesn't change between a useless answer and a great one. The prompt does, and shaping it on purpose is a real skill.
Building on the API
A prompt stops being a chat message and becomes a function call: the API, the messages list, and the one parameter that decides how wild the answer gets.
RAG and Embeddings
Give a model knowledge it was never trained on by finding the right passages and handing them to it at answer time.
AI Agents and Tools
A model that can only talk becomes software that acts once it gets tools and a loop: how tool calls actually work, and where agents break.