Notes by Prashant

Coding concepts explained simply — the long-form companion to @prashant.code.

Oct 15, 2026

LLM Parameters: Model Weights vs Generation Settings

Teach the six building blocks — tokens, tokenization, context window, parameters, pre-training, inference — then use them to understand temperature, top_p, and max_tokens.

Oct 5, 2026

LLM Is Not an Agent

An LLM predicts the next token. An agent observes, decides, acts, and loops. Here's why confusing the two leads to broken demos and overbuilt systems.

Sep 30, 2026

How Large Language Models Work: A Visual Guide

Tokens, API calls, message roles, generation settings, tool calling, streaming, and limitations — a practical reference for building with LLMs.

Sep 26, 2026

Architecture of LangChain & LangGraph

Follow one request from the API call through state, tool calling, conditional routing, and evaluation — the path the 31 phases are actually describing.

Sep 25, 2026

31 Phases to Learn LangChain & LangGraph

The complete roadmap from my latest Instagram reel — every phase from LLM fundamentals to advanced agentic systems, explained.

Follow @prashant.code

© 2026 Notes by Prashant. Written for people learning to code.