Cursor vs Windsurf: Same $20/mo. Same 77% SWE-bench. Only ONE Worth Paying For.

Both cost $20 a month. Both hit 77% on SWE-bench. Both have agentic modes that write code autonomously. And yet, after three weeks of using both on production codebases, the gap between Cursor and Windsurf is enormous. Just not where you expect it.

Windsurf shipped SWE-1.5 on March 19, 2026. It processes 950 tokens per second on Cerebras hardware with sub-100ms time-to-first-token. That is 13x faster than Claude Sonnet 4.5. Cursor responded with Background Agents: up to 8 autonomous AI workers running in parallel cloud VMs, cloning your repo and pushing branches while you keep coding locally.

Two radically different bets on the future of AI coding. One prioritizes raw speed. The other prioritizes parallelism. Here is which one actually matters for your workflow.

The Speed War: SWE-1.5 vs Supermaven

Windsurf's SWE-1.5 is the fastest proprietary coding model available in any IDE. The numbers: 950 tokens per second on Cerebras inference, sub-100ms TTFT. For context, Claude Sonnet 4.5 runs at roughly 70 tokens per second. GPT-5.4 is around 90. SWE-1.5 is an order of magnitude faster than both.

But speed in an agentic model is not the same as speed in autocomplete. SWE-1.5 powers Windsurf's Cascade agent, the system that handles multi-step autonomous coding tasks. When Cascade rewrites a function, adds tests, and updates imports, you feel the speed difference. A task that takes Claude 45 seconds finishes in 8.

Cursor's speed advantage lives in a different layer: autocomplete. Supermaven, which Cursor acquired and integrated, delivers a 72% acceptance rate on inline completions. That is the highest of any AI IDE measured. Supermaven predicts your next edit before you type it. Not just the next line, but multi-line changes across files. The prediction model runs locally, so latency is near zero.

The distinction matters. Windsurf is faster when the AI works alone. Cursor is faster when you and the AI work together. If you spend most of your time writing code with AI suggestions, Cursor's autocomplete wins your day. If you delegate entire tasks and review the output, Windsurf's Cascade finishes faster.

Agentic Modes: Background Agents vs Cascade

Cursor's Background Agents launched with a simple promise: fire and forget. You describe a task, the agent spins up a cloud VM, clones your repo from GitHub, creates a branch, and starts coding. You can run up to 8 agents simultaneously. Each operates independently. When one finishes, it pushes a branch for your review.

The workflow looks like this. You are fixing a bug in the auth module. You notice the test coverage for the payment module is thin. Instead of context-switching, you launch a Background Agent: "Write integration tests for the payment webhook handler." It works in its own VM, its own branch, its own world. You keep fixing the auth bug. Twenty minutes later, a PR appears.

Windsurf's Cascade takes a different approach. It is an inline agent that works in your editor session, reading your current context automatically. Cascade does not need you to describe the full context because it already has it. It reads your open files, your terminal output, your recent changes, and the broader repository structure through SWE-grep, a retrieval system that is 10x faster than traditional code search.

Cascade is better for in-context work. When you want the AI to understand exactly what you are looking at and extend it, Cascade's automatic context awareness saves time. Background Agents are better for out-of-context work. When you want a completely separate task handled without disrupting your flow, the parallel VM approach wins.

Model Access: Everything vs Proprietary

Cursor gives you the entire frontier model lineup. Claude Sonnet 4.6, GPT-5.4, Gemini 3.1 Pro, and more. You pick the model per task. Writing a complex algorithm? Use Claude. Quick refactor? Switch to a faster model. The flexibility means you are never stuck with one model's weaknesses.

Windsurf bets on its own models. SWE-1, SWE-1.5, SWE-1-mini, and swe-grep are all proprietary. They cost zero against your quota. Third-party models like Claude and GPT are available but consume quota faster. The economic incentive pushes you toward Windsurf's own stack.

On SWE-Bench Pro, Cursor Composer scores 52.1%. SWE-1.5 scores 40.08%. That 12-point gap is significant on a benchmark designed to measure real-world software engineering competence. But SWE-1.5 is 13x faster, which means you can iterate more. Speed versus accuracy is the eternal tradeoff, and Windsurf chose speed.

IDE Flexibility: 40+ Plugins vs VS Code Fork

This is where Windsurf opens a gap Cursor cannot close. Windsurf supports 40+ IDE plugins. JetBrains (IntelliJ, PyCharm, WebStorm), Vim, NeoVim, XCode, and the Windsurf native editor. If you are a JetBrains developer, Windsurf is your only real option for frontier AI coding assistance.

Cursor is a fork of VS Code. Period. If you use VS Code, the transition is seamless. Your extensions, keybindings, and themes carry over. But if you use IntelliJ or PyCharm, Cursor is not an option without switching editors entirely. For the estimated 10+ million JetBrains users, that is a dealbreaker.

Windsurf's plugin architecture means the AI layer sits on top of your existing editor. You keep your muscle memory, your workflow, your tooling. The AI becomes an addition, not a replacement. Cursor asks you to move into its house. Windsurf moves into yours.

Pricing After the March 2026 Overhaul

Windsurf replaced its confusing credit system on March 19, 2026 with quota-based tiers. Here is how the pricing stacks up now:

At the Pro tier, both are identical on price. But the free tiers diverge. Windsurf gives you unlimited Tab completions (autocomplete) on every plan, including free. Cursor caps free completions at 2,000. If you are testing before committing, Windsurf's free tier is more generous.

Windsurf also added a Max tier at $200/month for power users who burn through the standard quota. Cursor has no equivalent. If you are a heavy user running multiple agents daily, Cursor's unlimited Auto mode at $20 may actually be the better deal.

Enterprise and Compliance

Windsurf holds FedRAMP High authorization, HIPAA compliance, and ITAR certification. If you work in government, healthcare, or defense, Windsurf is currently the only AI IDE that meets these requirements. Cursor has SOC 2 Type II and offers self-hosted options, but does not hold FedRAMP or HIPAA certifications.

For enterprise teams, this is not a feature comparison. It is a legal requirement. If your compliance team says you need FedRAMP, the decision is already made.

Large Codebase Performance

Cursor handles repositories with 1,000+ files better than Windsurf. The indexing engine maintains coherent context across massive projects, and Background Agents work from the full GitHub repo. On codebases under 500 files, both perform comparably.

Windsurf counters with SWE-grep, a purpose-built retrieval system that is 10x faster than traditional code search. SWE-grep excels at finding relevant context in medium-sized codebases (100-500 files). For monorepos with thousands of files, Cursor's approach scales better.

Community and Ecosystem

Cursor has the largest community in AI coding. The VS Code extension ecosystem means every VS Code plugin works in Cursor. That is tens of thousands of extensions, themes, and language servers. The community produces tutorials, custom configurations, and shared workflows at a pace Windsurf cannot match.

Windsurf reached 1 million users and 4,000+ enterprise customers. The community is growing fast but remains smaller. Windsurf's advantage is breadth: those 40+ IDE plugins mean the community spans JetBrains, Vim, and VS Code users rather than concentrating in one ecosystem.

For more AI coding tools, browse the Skila AI coding tools directory. If you prefer terminal-based coding, check out oh-my-codex, which adds multi-agent orchestration to OpenAI's Codex CLI.

The Verdict: Who Should Pick What

Pick Cursor if: You use VS Code. You want the best autocomplete in the market. You value model flexibility (Claude, GPT, Gemini). You work on large codebases (1,000+ files). You want Background Agents for parallel task execution. You prefer a massive community with abundant resources.

Pick Windsurf if: You use JetBrains, Vim, or XCode. You need FedRAMP, HIPAA, or ITAR compliance. You prefer delegating full tasks to an autonomous agent. You want the fastest proprietary coding model available. You are new to AI coding and want gentler onboarding.

Skip both if: You want full control over your AI stack. Ollama plus a local model gives you zero-cost, zero-dependency AI coding without any subscription. Claude Code in the terminal gives you agentic coding without an IDE lock-in.

The $20/month question is not which IDE is better. It is which workflow matches yours. Cursor is the co-pilot that types alongside you. Windsurf is the autonomous worker you hand tasks to. Same price. Same benchmarks. Completely different philosophies.

Frequently Asked Questions

What is the difference between Cursor and Windsurf in 2026?

Both cost $20/month and score similarly on SWE-bench, but they solve different problems. Cursor is a VS Code fork with the best autocomplete (72% acceptance rate via Supermaven), access to every frontier model, and Background Agents for parallel coding. Windsurf supports 40+ IDEs including JetBrains, runs its own SWE-1.5 model at 950 tokens/second (13x faster than Claude), and holds FedRAMP/HIPAA certifications for enterprise compliance.

Is Cursor or Windsurf better for JetBrains users?

Windsurf is the only real option. Cursor is a VS Code fork and does not support JetBrains IDEs. Windsurf offers plugins for IntelliJ, PyCharm, WebStorm, and 37+ other IDEs. If you refuse to leave JetBrains, Windsurf is your answer.

How much do Cursor and Windsurf cost in 2026?

Both charge $20/month for individual Pro plans and $40/seat/month for Teams. Windsurf added a Max tier at $200/month for heavy users. Windsurf's free tier includes unlimited Tab completions; Cursor's free tier caps completions at 2,000. Both offer custom enterprise pricing.

What are Cursor Background Agents?

Background Agents are autonomous AI workers that run in cloud VMs. You describe a task, the agent clones your repo from GitHub, creates a branch, completes the work, and pushes a PR. You can run up to 8 agents in parallel while continuing to code locally. Available on Cursor Pro ($20/month).

Is Windsurf SWE-1.5 better than Claude Sonnet for coding?

SWE-1.5 is 13x faster (950 tokens/second vs ~70 for Claude Sonnet 4.5) but scores lower on SWE-Bench Pro (40.08% vs Cursor Composer's 52.1% which uses Claude). SWE-1.5 optimizes for iteration speed over single-pass accuracy. For tasks where you review and iterate quickly, the speed advantage can offset the accuracy gap.