Free resources

The different levels of how Claude thinks

Anthropic walks through the layers of Claude's internal reasoning in plain terms.

A global workspace in language models (Anthropic Research)

The research page behind the video, on the J-space workspace that emerged inside Claude.

But what is a neural network? (Deep learning chapter 1) by 3Blue1Brown

The famous visual first lesson that makes neurons and weights click for beginners.

Neural networks series (full playlist) by 3Blue1Brown

The whole chapter by chapter series, from a single neuron up to how networks learn.

Introduction to Generative AI (Google Cloud Tech)

A short reputable explainer of what generative AI is and how it differs from older ML.

What are AI Agents? (IBM Technology)

IBM breaks down agents that plan, use tools, and act on your behalf.

[1hr Talk] Intro to Large Language Models by Andrej Karpathy

A one hour, no-maths tour of LLMs from a leading AI researcher.

Deep Dive into LLMs like ChatGPT by Andrej Karpathy

The longer 3.5 hour follow up covering the full training stack, still general audience.

Learn Python, Full Course for Beginners (freeCodeCamp)

A complete beginner Python course, no prior coding needed, free on YouTube.

Prompt engineering overview (Anthropic docs)

Anthropic's own guide to writing better prompts, with an interactive tutorial linked.

Gemini for Google Workspace Prompt Guide

Google's practical prompting handbook built around persona, task, context, and format.

Why Large Language Models Hallucinate (IBM Technology)

Explains why chatbots confidently make things up and how to stay sceptical.

Context windows (Anthropic docs)

Clear explanation of the context window as a model's working memory, and why bigger is not always better.

What is Cloud Computing? (Google Cloud Tech)

A plain intro to what the cloud actually is, from Google's core infrastructure series.

Data Analysis with Python, Full Course for Beginners (freeCodeCamp)

A free 4 hour intro to analysing data with NumPy, Pandas, Matplotlib, and Seaborn.

ChatGPT (official homepage)

OpenAI's ChatGPT, the official product to sign up and experiment with.

Claude (official homepage)

Anthropic's Claude, the official product homepage.

Gemini (official homepage)

Google's Gemini assistant, official landing page.

Llama by Meta (official homepage)

Meta's open Llama models, official homepage.