AI Coding Assistant Comparison: GitHub Copilot vs Cursor vs Codeium (3 Months of Real Use)
With AI coding tools popping up left and right these days, I figured a lot of people are confused about which one to actually use. So I've put together my experience from the past three months of alternating between them on real projects.
To cut to the chase, each tool has clearly distinct strengths, so it's important to choose the one that fits your development style.
GitHub Copilot - The strongest at good old-fashioned autocomplete, and it works seamlessly without lag in familiar editors (especially VS Code). It often predicts the next line perfectly, but it lacks the ability to understand the bigger context, so it hit a wall when it came to refactoring beyond a single function.
Cursor - An editor built specifically around AI. Refactoring instructions that span entire files or multiple files work really well, and it was genuinely convenient to explore the codebase through conversation. However, it didn't perfectly support the shortcuts and extensions I was used to, so it took some adjustment time at the start.
Codeium - The biggest selling point is that it's free. For junior-level tab autocomplete use, it's more than enough, and for personal projects, the free tier is totally sufficient. The accuracy feels slightly lower than Copilot, but in terms of satisfaction per dollar, it was by far the best.
Overall:
- Personal projects / light work: Codeium
- Already have a primary IDE and need fast autocomplete: Copilot
- Lots of large-scale refactoring or multi-file edits: Cursor
- If you're like me and constantly switch between multiple tools, you eventually realize that your code's structure matters more than the AI tool itself
Which tool is your main one right now? If you have any other recommendations or tips, feel free to share them in the comments.
4 answers
Agreed. Cursor is a real machine when it comes to multi-file refactoring, lol.
I've also tried something similar for about 3 months, and when it comes to team-level use, Copilot is indeed the most reliable. Cursor is fine for individuals exploring the codebase, but it tends to stumble when reading other people's code. That said, Codeium is quite usable for being free, so I think it's a good option for juniors to get started with.
Well, I'm not sure Cursor is all that great. The familiar shortcuts don't even work anyway, and if you follow team settings, Copilot is the standard. Does just switching tools really boost productivity that much? Don't you think the article glosses over personal adaptation issues too lightly?
Codeium's free tier is seriously powerful. It's more than enough for writing junior-level code, lol.