What Claude Code Is and How It Differs from ChatGPT

Claude Code Inside the Terminal

How Claude Code works from the command line and reads your actual files.

Claude Code runs as a CLI tool, a Command Line Interface. That means you launch it from the Terminal like any other command. The big difference: it has access to your file system.

How Claude Code Talks to Your Environment

You

typing in the Terminal

command or question

Claude Code

processes your request

reads / writes

Your Files

reads and edits them

Terminal Commands

git, npm, tests...

Anthropic API

the model itself

Important Point

Claude Code can run commands like npm install, git commit, and even your test suite. That makes it work like a real developer, not just a writing assistant.