Cursor: VS Code But Smart
Cursor is basically VS Code with AI built right in. Instead of switching between your editor and ChatGPT, you just highlight code and press Cmd+K to ask questions or request changes.
I started with Cursor because Twitter wouldn't shut up about it. Took maybe a week to stop accidentally hitting Cmd+K every time I wanted to search. But once you get used to it, the autocomplete is genuinely fast. Like, suggestions appear before you finish typing fast.
Agent mode is where it gets weird - you can tell it "refactor this entire component to use Zustand instead of Redux" and it'll actually attempt it across multiple files. When it works, you feel like a wizard. When it doesn't, you spend two hours untangling import hell because it moved three things and forgot to update the fourth. The Cursor community on Reddit is basically people going "did this work for anyone else?" constantly.
The official Cursor documentation covers the basics well, though their Agent Mode guide glosses over how often it breaks things. You can configure it with .cursorrules files to avoid some common mistakes, and the VS Code migration guide makes switching pretty painless.
Windsurf: The Pretty One That Tries Too Hard
Windsurf looks nice. Really nice. If Cursor is VS Code's practical older brother, Windsurf is the design-obsessed cousin who cares about fonts and spacing. Codeium built this as their flagship AI IDE after years of making VS Code extensions.
The big selling point is this Cascade feature where it automatically figures out what files are relevant to your request. Sounds cool in theory, but in practice it's like having a well-meaning intern who keeps bringing you files you didn't ask for. The Windsurf documentation explains how it works, though their getting started guide doesn't mention how overwhelming it can be for large projects.
It writes changes directly to disk without asking, which freaked me out at first but actually works pretty well if you're good about using git commits. The UI is definitely the cleanest of the three. Check out their feature comparison for their take on how they stack up against Cursor, though take it with a grain of salt since they wrote it.
Claude Code: For Terminal People
Claude Code lives in your terminal. If you're one of those developers who does everything from the command line, this is probably your jam. Instead of copying and pasting error messages into ChatGPT, you can just pipe them directly to Claude.
It's Claude 3.5 Sonnet but designed for code. The context window is huge and actually works - no bullshit 200K claims that turn into 15K reality like some other tools. The official Claude Code docs walk you through setup, and their CLI reference covers all the commands you'll actually use.
But it costs whatever Anthropic charges, and that shit adds up fast. I hit $83.47 one month because I got lazy and started piping everything to it. Commit messages, deployment scripts, even "explain this error" for stuff I could've just checked the docs for. Their quickstart guide shows you the basics, though it doesn't warn you how expensive it gets when you use it for everything.
Why I Even Bothered Testing All Three
I was perfectly happy with Copilot until everyone on Twitter started claiming these were "game-changers." Spent a weekend trying all three on some side project - Next.js frontend with Stripe, Python FastAPI backend, the usual stuff.
Each one has weird personality quirks. Cursor feels like VS Code's smarter cousin. Windsurf thinks it knows better than you do. Claude Code is like having a really expensive senior dev who only talks through the terminal.
Couldn't figure out which one to actually pay for without testing them on real work, not toy examples.
Anyway, here's what happened when I actually used them day-to-day for a few months.