The randomised trial behind the 50% and 67% scores, and the ways of using AI that kept learning intact.
How AI assistance impacts the formation of coding skills
Anthropic Jan 2026
Open anthropic.com →Yes, if the AI is your tutor rather than the one writing the code. In an Anthropic trial, 52 mostly junior developers learning a new Python library with an AI assistant scored 50% on a quiz afterwards against 67% for those who coded by hand, with the biggest gap in debugging; those who kept asking why it worked held on to more. Start with a structured course such as Harvard's free CS50x, which lets you use its own CS50 Duck tutor but not other AI on graded work. In Claude Code, switch on the Learning output style so it leaves pieces for you to write. Verified students get GitHub Copilot free. Never keep code you cannot explain line by line.
On the AI map, 29 October 2026 AI assistants Research and search
8 resources.
The randomised trial behind the 50% and 67% scores, and the ways of using AI that kept learning intact.
Anthropic Jan 2026
Open anthropic.com →Harvard's free introduction to programming, built for people who have never coded before.
Harvard University (David J. Malan) Oct 2026
Open cs50.harvard.edu →The course's AI rule: its own CS50 Duck is allowed, other assistants that complete answers are not.
Harvard University Oct 2026
Open cs50.harvard.edu →The CS50 Duck, a tutor built on ChatGPT that guides students rather than handing over solutions.
Harvard CS50 2026
Open cs50.ai →How to turn on the Learning style, which marks a TODO(human) and waits for you to write that part.
Claude Code Docs Oct 2026
Open code.claude.com →How a verified student on GitHub Education gets Copilot's features at no cost.
GitHub Docs Oct 2026
Open docs.github.com →A former data scientist's plan for learning to code now that AI writes much of it.
Tina Huang Mar 2026
Watch on YouTube youtube.com →Why Anthropic built a coding mode that asks beginners to write five to ten lines themselves.
Engadget Aug 2025
Open engadget.com →