Windsurf vs Cursor (2026): Which to Use

The rebrand, quickly

If you went looking for Windsurf recently and landed on a Devin page, you weren’t lost. After the 2025 split — where Google took part of the Windsurf team in a reverse-acquihire and Cognition took the assets and brand — Cognition folded Windsurf into its Devin product line. On 2 June 2026 the IDE was rebranded “Devin Desktop,” and windsurf.com began redirecting to devin.ai.

Two practical consequences matter for this comparison. First, the Cascade agent is on a deprecation path — scheduled for 1 July 2026 — replaced by Devin Local. Second, the rules directory is migrating: builds still read .windsurf/rules/ as a fallback, but current ones prefer .devin/rules/. We’ll keep using “Windsurf” as the noun, because that’s the search term and the configuration most existing projects still carry.

Paradigm: two agentic IDEs, two architectures

Both Windsurf and Cursor are agentic IDEs— full editors with an autonomous agent woven through them, not chat bolted onto a sidebar. That shared category is why people compare them directly. Under the hood, though, the bets diverge.

Cursor is a fork of VS Code. You get the familiar editor, the extension ecosystem, and an AI layer on top. Its agent is branded Composer, and it proposes changes as diffs you review and approve. The completion engine traces back to the Supermaven acquisition, and it indexes the full repository so suggestions stay grounded in your actual code.

Windsurf is its own agentic IDE with the Cascade agent — now transitioning to Devin Local— and, distinctively, its own in-house models, SWE-1.5 and SWE-1.6. Those models are tuned for speed and agentic flow rather than topping accuracy leaderboards. The headline architectural advantage is reach: Windsurf is the only one of the major agentic IDEs that supports full JetBrains, so IntelliJ, PyCharm, GoLand, and the rest are first-class homes for it.

How do Windsurf and Cursor prices compare?

At the entry tier the two land in similar territory, but the structure differs. Windsurf keeps a genuine Free tier; Cursor leans on a subscription with usage-based credits layered on top. Here are the published tiers as of June 2026:

Models: in-house speed vs multi-model flexibility

This is the cleanest philosophical split between the two.

Windsurf builds its own models.SWE-1.5 and SWE-1.6 are in-house, optimized for fast, fluid agentic editing. The trade is candor: they’re fast but generally less accurate than the top frontier models on hard tasks. You can still reach for other models in Windsurf, but the in-house ones are the default flavor and the reason the agentic loop feels quick.

Cursor is multi-model and supports BYOK. You can route to different frontier models depending on the task, use its own Composermodel, and plug in your own API keys. If you want the dial — pick the best model for this job, swap when a better one ships next quarter — Cursor gives you that. Windsurf’s bet is the opposite: a tightly integrated, in-house model stack tuned for its own agent.

IDE coverage: where each one lives

This is the most concrete, decision-shaping difference, so it deserves its own section.

Cursor is a VS Code fork.That’s its whole home — you get the VS Code editing experience and extension ecosystem, because Cursor isa customized VS Code. If your team is happy in VS Code, the transition is nearly seamless. If your team lives in JetBrains, Cursor isn’t where you’ll be.

Windsurf is the only major agentic IDE with full JetBrains support.That single fact decides the matchup for a lot of teams. Backend, Android, and enterprise shops that standardize on IntelliJ, PyCharm, GoLand, or RubyMine can get a genuine agentic IDE without leaving their editor. If you’re weighing the broader field — including GitHub Copilot, which plugs into VS Code, Visual Studio, JetBrains, and Neovim — the best AI coding tools comparison lays out coverage across all of them.

Rules & configuration: not interchangeable

Here’s the part that quietly costs teams time: Windsurf and Cursor configure your coding conventions through entirely different, non-interchangeable formats.

Cursor uses .cursor/rules/*.mdc— Markdown-with-metadata files carrying frontmatter (description, globs, alwaysApply) that control when each rule activates — plus the legacy root .cursorrules file. The full mechanics are in the Cursor rules guide.

Windsurf uses .windsurf/rules/*.md with a trigger frontmatter field for activation (Always On, Manual, Model Decision, or Glob), plus the legacy .windsurfrules file — and after the rebrand, current builds prefer .devin/rules/. Workspace rule files cap at 12,000 characters each. The full mechanics are in the Windsurf rules guide.

They do not share these formats. A Cursor .mdc rule means nothing to Windsurf, and a Windsurf .md rule with a triggerfield means nothing to Cursor. So the same convention — “mirror our service template,” “never use any” — has to be written once for each tool, then kept in sync forever. We’ll come back to that.

Which should you choose?

Forget “better” — match the tool to the work. Here’s a decision guide by use case:

Notice the last row. In practice the choice often isn’t binary. If you’re also weighing terminal-first agents like Claude Code, the Cursor vs Claude Code comparison covers the IDE-versus-CLI axis that sits next to this one.

The hidden cost of switching (or running both)

Because Windsurf and Cursor read different rules formats, the moment you switchfrom one to the other — or run both across a team — your conventions stop being a single source of truth. The rule that says “use our internal RPC pattern” lives in a .cursor/rules/*.mdc file for Cursor and again in a .windsurf/rules/*.md (now .devin/rules/) file for Windsurf. Fix a standard in one, and the other silently drifts. Add a third tool — Copilot’s .github/copilot-instructions.md, say — and the maintenance burden compounds.

The fix is to stop treating either IDE as the home of your rules. Keep one canonical libraryof your coding standards and compile it to each tool’s native format — .cursor/rules for Cursor, .windsurf/rules for Windsurf, and onward to SKILL.md for Claude Code and Copilot instructions for GitHub Copilot. Skillwrightis built for exactly this: author once, compile to every IDE format. The rebrand from Windsurf to Devin Desktop is a perfect example of why — the directory moved from .windsurf/rules to .devin/rules, and a single canonical library absorbs that change for you instead of forcing a hand-migration across every repo.

If you’re evaluating either tool, start your rules in the format you need and grab a ready-made rule templateto seed your library. The IDEs you use — and their names — will keep changing; your standards shouldn’t have to.

Frequently asked questions