Windsurf vs Cursor v3.1 after three months of daily use: what made me switch back

Three months ago I moved my primary development environment from Cursor to Windsurf. The reasoning was simple: Windsurf's Cascade agent was producing noticeably better multi-file edits on a large TypeScript monorepo I maintain, and the pricing was identical at $20/month for the Pro tier. Two months later I switched back to Cursor v3.1. The reason was not code quality.

This is not a feature comparison chart. Both editors support Claude Sonnet 4.6, GPT-5.4, and Gemini 3 Pro. Both have agent modes that can edit multiple files, run terminal commands, and iterate on errors. Both handle TypeScript, Python, and most mainstream languages well. The meaningful differences are in how they handle your working context, how fast they respond, and where they break.

The context window problem

The monorepo I work on has 340 TypeScript files across 12 packages. When I ask either tool to refactor a shared utility, it needs to understand where that utility is imported, what types flow through it, and which tests cover it.

Cursor v3.1 indexes the full codebase on open and maintains a local embedding index. When you tag files with @file or let the agent search, it pulls from this index. The searches are fast and usually find the right files. The failure mode is that it sometimes misses files in deeply nested packages because the search ranking favours recently edited files.

Windsurf's Cascade takes a different approach. It reads files on demand during the conversation, building context as it goes. This means the first turn of a conversation is slower because Cascade is actively reading your codebase. The advantage is that it reads the actual current state of files rather than a stale index. The disadvantage is that on a 340-file repo, the first meaningful response takes 8-12 seconds versus Cursor's 3-5 seconds.

For quick edits, that latency difference is barely noticeable. For a 20-turn conversation where you are iterating on a refactor, it compounds. I found myself waiting noticeably more with Windsurf and eventually started batching my requests into fewer, larger prompts to reduce the round trips.

Where Windsurf's Cascade genuinely wins

Cascade is better at multi-step tasks where the agent needs to make a plan, execute it across several files, and verify the result. When I asked both tools to migrate a set of Express route handlers from callbacks to async/await, Cascade produced a working result on the first try in 7 of 10 test cases. Cursor's agent mode produced a working result on the first try in 4 of 10 cases, usually failing on error handling paths where it forgot to convert a .catch() chain.

Cascade also handles file creation better. When generating a new feature that needs a component, a test file, a type definition, and a route handler, Cascade creates all four files with consistent imports between them. Cursor v3.1 sometimes creates the files but gets the relative import paths wrong between packages in a monorepo, which means you spend the next two minutes fixing path resolution errors.

Where Cursor v3.1 wins

Tab completion. This sounds minor but it is the feature you use 200 times a day. Cursor's inline completions are faster to appear (sub-200ms versus Windsurf's 300-500ms in my testing) and more contextually aware of the line you are currently writing. Over a full day of coding, this adds up to a smoother experience that is hard to quantify but easy to feel.

Cursor's new Bugbot feature is also useful for code review. It runs automatically on pull requests if you connect your GitHub account and catches issues that the agent missed during generation. Windsurf has no equivalent.

The model switching experience is also better in Cursor. You can change models mid-conversation and Cursor handles the context handoff cleanly. In Windsurf, switching models mid-conversation occasionally loses context from earlier turns.

Why I switched back

The deciding factor was not a single feature but an accumulation of small frictions. Windsurf's slower first-response time, the occasional context loss on model switches, and the less responsive tab completion made my daily experience feel heavier. Cascade writes marginally better multi-file code, but I spend 80% of my time on single-file edits where Cursor's speed advantage matters more.

If your work involves primarily large refactors and greenfield feature generation, Windsurf's Cascade is the better agent. If your work is a mix of small edits, code review, and occasional larger tasks, Cursor's speed and polish make the day more pleasant.

The honest gap in both

Neither tool handles monorepo package boundaries well. Both assume a flat project structure and struggle when types are defined in one package, used in another, and tested in a third. The workaround in both cases is to explicitly tag the relevant files from each package before starting the conversation. Until both editors build proper monorepo-aware context, this will remain a manual step.

Both tools are also oddly bad at writing database migrations. They generate the up migration confidently and then either forget the down migration entirely or write one that does not actually reverse the up. Always review generated migrations by hand.