AI Coding Tool
Windsurf
The AI IDE with Cascade flow-based agent mode and persistent memory
Last updated: April 15, 2026
Quick verdict
Windsurf is best for developers who want Cursor-class multi-file agent editing at $5/mo less — Pro is $15/mo vs $20 for Cursor Pro. Cascade is Windsurf's flow-based agent that plans steps, edits files, runs commands, and persists Memories across sessions so project context survives restarts. The free tier's 5 Cascade flows per month makes serious evaluation hard — Pro is effectively required for real use.
Model
Claude Sonnet 4 / GPT-4o / Windsurf SWE-1
From
$15/mo
Free tier
Yes
Setup
5 min
Best for
- + Developers wanting Cursor-style agent editing at a lower price
- + Projects where persistent cross-session memory matters
- + Teams trialing Codeium's SWE-1 model on coding tasks
- + VS Code users who want to keep extensions and keybindings
- + Developers who prefer flow-based agent execution with clear step visibility
Not for
- - Terminal-only workflows
- - Teams needing a mature extension ecosystem — Windsurf supports most VS Code extensions but some break
- - Free-tier users — 5 Cascade flows/month disappears in one afternoon
- - Projects requiring JetBrains IDEs
Key features
Cascade flow-based agent
UniqueCascade plans a task as a sequence of steps — read file, edit file, run command, check output — and executes them with visible intermediate state. You can pause mid-flow, edit the plan, and resume. More transparent than Cursor Composer's parallel edits.
Memories system
UniqueWindsurf automatically extracts durable facts from your sessions — your preferred libraries, architecture choices, recurring fixes — and reinjects them into future sessions. Survives IDE restarts without manual .cursorrules-style config.
SWE-1 Codeium-trained coding model
UniqueCodeium's own model trained specifically for software engineering tasks. Available as a model option alongside Claude Sonnet 4 and GPT-4o. Lower cost per request and tuned for code edits rather than general chat.
Inline completions with Supercomplete
Autocomplete that predicts multi-line changes and refactors, not just the next token. Predicts where your cursor should jump next across the file.
MCP server support
Connect Model Context Protocol servers to extend Cascade with database access, browser control, or custom tools. Configured in Windsurf's settings UI.
VS Code extension compatibility
Windsurf is a VS Code fork. Most VS Code extensions work unchanged — Python, GitLens, Prettier, Docker, and thousands more install via the built-in marketplace.
Limitations
Smaller ecosystem than Cursor
Windsurf launched in late 2024 and has fewer third-party integrations, templates, and community-shared rule sets than Cursor. Some VS Code extensions have compatibility issues.
Free tier cap is restrictive
5 Cascade flow invocations per month is enough to test the product once or twice, not to use it daily. You will need Pro at $15/mo for any real work.
Newer product with rougher edges
Cascade occasionally stalls mid-flow on very large tasks, requiring a retry. Memories can over-generalize and inject wrong context in unrelated projects.
No headless or CLI mode
Unlike Claude Code and Aider, Windsurf has no command-line mode for CI/CD integration. It is an IDE-only product as of April 2026.
Tips
Clean out old Memories every few weeks
Memories auto-accumulate and can start injecting stale or wrong context — a library you stopped using, a style rule you changed. Review and prune them in the Memories panel monthly.
Use Cascade for tasks, not single-file tweaks
Cascade's flow visibility adds overhead. For single-file edits use inline chat. Save Cascade for multi-file feature work where the step-by-step visibility helps you catch wrong assumptions early.
Try SWE-1 before defaulting to Claude
Codeium's SWE-1 model is cheaper per request and tuned for code edits. For routine refactors and test writing it often matches Claude Sonnet 4 at a lower cost tier. Switch to Claude for architecture decisions and hard debugging.
Upgrade to Pro on day one if serious
The free tier's 5 Cascade flows/month is a teaser, not a working budget. If you use Windsurf more than twice a week, Pro at $15/mo pays for itself in an afternoon versus fighting the cap.
Frequently asked questions
How much does Windsurf cost?
Windsurf has three plans: Free (25 user prompts + 5 Cascade flows/month), Pro ($15/mo, unlimited prompts + 500 Cascade flows/month + priority access), and Teams ($35/mo/user with admin controls and SSO). Enterprise pricing is custom.
What is Cascade in Windsurf?
Cascade is Windsurf's agent mode. It plans a task as a visible sequence of steps — read, edit, run command, check — and executes them one at a time with intermediate state visible. You can pause, edit the plan, and resume. Comparable to Cursor Composer's Agent mode but more transparent step-by-step.
How does the Memories system work?
Windsurf auto-extracts durable facts from your sessions — preferred libraries, architecture choices, recurring patterns — and stores them as Memories tied to each workspace. On future sessions, relevant Memories are injected into Cascade's context without you pasting them again.
What is SWE-1?
SWE-1 is Codeium's own coding-tuned model, available as a selectable option in Windsurf alongside Claude Sonnet 4 and GPT-4o. Cheaper per request than Claude or GPT-4o and tuned specifically for software engineering tasks like refactors, tests, and debugging.
How does Windsurf compare to Cursor?
Both are VS Code forks with multi-file agent editing. Cursor has Composer + Background Agents; Windsurf has Cascade + Memories. Windsurf Pro is $15/mo vs Cursor Pro at $20/mo. Cursor has a larger ecosystem and more mature tooling; Windsurf's Cascade is more transparent step-by-step and includes auto-memory without manual .cursorrules files.
Can Windsurf use MCP servers?
Yes. Windsurf supports Model Context Protocol servers — connect databases, browser automation, custom tools, or third-party APIs to extend Cascade's capabilities. Configure MCP servers in Windsurf's settings UI under the Cascade section.