Windsurf has an agentic AI built into the IDE itself and the experience of using it is different from any other coding tool I have tried

There is a meaningful difference between an AI assistant that sits alongside your IDE and one that is built into it as a first-class component. Windsurf is the latter and after two months of daily use I want to explain what that difference actually feels like in practice.

Cascade is the core AI agent. It understands your entire codebase, not just the current file, and can plan and execute complex multi-file tasks autonomously. You describe a feature you want to build or a problem you want to solve and it breaks that down into steps, makes the necessary changes across however many files are involved, and shows you the result. The diff view makes it easy to review what changed before accepting.

The Write and Chat modes let you switch between having the AI actively modify your files and having a conversation about the code without it making changes. That distinction matters when you want to think through an approach before committing to implementation.

Tab Smart Suggestions provide context-aware completions as you type that are more tightly integrated with the rest of the IDE than tools that function as an overlay. The built-in Live Preview shows real-time updates to web applications as changes are made which removes the step of switching to a browser to see the effect of each edit.

One-click deployment to a live URL from within the IDE is the kind of feature that seems small until you have done the manual server setup and deployment process enough times to appreciate what it is removing.

Model flexibility between the proprietary Cascade Base model and premium options including GPT-4o and Claude 3.5 Sonnet means you can route different types of tasks to whichever model handles them best.