Cursor vs Copilot vs Windsurf: 30-Day Honest Verdict

· Insights

30-day comparison of Cursor, GitHub Copilot, and Windsurf across real projects. Pricing, features, and where each one genuinely falls short.

Last updated: July 11, 2026 \u00b7 6-minute read

I spent 30 days using Cursor, GitHub Copilot, and Windsurf as my primary editors \u2014 ten days each, across three real projects: a React dashboard, a REST API in Express, and a CLI tool in TypeScript. I did not cherry-pick examples. I used each editor for every coding task during its ten-day window, including debugging, refactoring, and writing tests.

How I Tested

Each editor got the same three projects. I tracked completion time for identical tasks, measured how many AI suggestions I accepted versus rejected, and noted where each tool hallucinated or produced broken code. A Reddit thread on r/cursor last month compared just the autocomplete features \u2014 I wanted to test the full experience, including the chat interfaces and multi-file editing capabilities that each editor markets as their differentiator.

I used Claude 3.5 Sonnet as the model in Cursor and Windsurf, and GPT-4o in Copilot, since those are the default or most popular options in each tool.

Cursor \u2014 The Composer Is Genuinely Good

Cursor\u2019s Composer feature lets you describe a change across multiple files and it applies edits atomically. For the React dashboard, I asked Composer to \u201cadd a dark mode toggle that persists to localStorage and updates all chart colors.\u201d It modified five files correctly: the theme context, the toggle component, the chart wrapper, and two utility files. That would have taken me 15 minutes manually. It took 90 seconds.

The inline autocomplete in Cursor is fast \u2014 faster than Copilot\u2019s in my testing. Suggestions appear within 200ms on my M2 MacBook. The context awareness is solid too; it picks up on types from imported files without explicit hints.

Where Cursor falls short: the Composer sometimes overwrites files you did not expect it to touch. I had it rename a component and it also modified an unrelated test file, breaking the import path. The undo worked, but it was unsettling. Someone on r/ChatGPTCoding reported the same issue last week \u2014 it seems like a known problem with Composer\u2019s scope detection.

GitHub Copilot \u2014 Best Inline Suggestions, Weak Chat

Copilot\u2019s inline suggestions are the most contextually accurate of the three. It rarely suggests code that does not compile, and its type inference is excellent \u2014 it picked up on my custom TypeScript generics without any configuration. For the Express API project, Copilot\u2019s autocomplete wrote better error handling middleware than what I had drafted manually.

The chat experience, however, is noticeably behind Cursor and Windsurf. Copilot Chat in VS Code feels like an afterthought \u2014 it opens in a side panel, does not have multi-file editing, and sometimes loses context after 10-15 messages. A thread on r/webdev from June compared the chat features and most commenters agreed: Copilot is a great autocomplete, not a great AI pair programmer.

Pricing is Copilot\u2019s biggest advantage at $10/month for individuals. Cursor is $20/month. Windsurf is also $15/month with a free tier.

Windsurf \u2014 The Cascade Feature Has Potential

Windsurf\u2019s Cascade is similar to Cursor\u2019s Composer but with a key difference: it maintains a running conversation about your codebase that persists across sessions. I found this useful for the CLI tool project \u2014 I could reference earlier decisions about the argument parsing strategy without re-explaining them.

The inline autocomplete is decent but not as fast as Cursor\u2019s. There is a noticeable 300-400ms delay on longer suggestions. The editor itself is based on VS Code, so the extension ecosystem works out of the box, which is a real advantage over Cursor\u2019s fork.

Where Windsurf struggles: stability. I had three crashes in ten days, two of which lost unsaved work. The Cascade feature also occasionally gets stuck in a loop, generating the same edit repeatedly until you manually cancel it. It is clearly the least mature of the three.

Pricing Comparison

TL;DR

  • Best for single-file work and autocomplete: GitHub Copilot. Cheapest, most stable, best inline suggestions.
  • Best for multi-file refactors and medium projects: Cursor. Composer is genuinely useful, fast autocomplete, but $20/month.
  • Best for long-running projects with persistent context: Windsurf. Cascade is promising, but stability issues make it hard to recommend for production work right now.

I use Cursor for my daily work. The Composer feature saves me enough time to justify the $20/month. But if you are budget-conscious or working in a large team that already has GitHub Enterprise, Copilot is the safer bet.

Check out the projects section to see what I have built with these tools, or visit the lab for experiments that pushed these editors to their limits. The full blog archive has more tool comparisons and technical deep dives.

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Not affiliated with Cursor, GitHub, or Codeium (Windsurf). All testing done on personal projects. Prices as of July 2026.