AI IDEs
The two words are used interchangeably in marketing and they do not mean the same thing. The difference decides which of these products can actually replace what you use now.
Statements about other products were checked on 23 September 2026 and are cited at the foot of this page.
The distinction is real
An editor edits text well and gets everything else from extensions: language support, debugging, test running. An IDE ships those as first-class, integrated parts, with a model of your project that the refactoring and debugging tools share.
In practice the gap shows up in a small number of places, and if you do not work in those places you will never notice it:
- Rename-across-a-large-typed-codebase and similar structural refactors, where the IDE's project model is doing real work an extension cannot fully replicate.
- Step debugging in complex runtimes, particularly JVM and .NET.
- Profiling, and the tooling around it.
- Framework-aware navigation in large enterprise codebases.
What the AI ones actually are
Almost everything marketed as an "AI IDE" is one of three things, and knowing which tells you what you are giving up:
| Shape | What it is | What you keep |
|---|---|---|
| AI inside a real IDE | An assistant built into an existing IDE, such as JetBrains AI Assistant inside their IDEs. | Everything the IDE already did. The AI is an addition, not a replacement. |
| Editor plus extension | A general-purpose editor with an assistant installed, such as Copilot. | Your existing setup. The assistant works through the editor's extension interface, from a panel beside your code. |
| AI-native editor | An editor with the agent built into it rather than added to it. Cursor, Windsurf and AstraCode are this shape. | Your extensions, keybindings and settings, plus an agent that can act on the whole repository, run your commands and check its own work. |
When your team lives in an IDE
Some teams should keep their IDE:
- You work in Java, Kotlin or C# in a large codebase, and your refactoring and debugging are the IDE's, not extensions'.
- Your team standardises on one IDE and shares run configurations, inspection profiles and tooling through it.
- You depend on a profiler or a framework integration that exists only there.
Keeping the IDE no longer means giving up the agent. The AstraCode CLI runs inside JetBrains IDEs and Zed through the Agent Client Protocol, so the same agent plans, edits and runs your tests from the IDE's own agent panel. How to set it up.
When the editor is the better base
- You work mostly in Python, TypeScript, Go or Rust, where the language servers are good and the IDE's structural advantage is much smaller.
- Your extensions, keybindings and settings come with you, so switching takes an evening rather than a migration.
- You want the agent to be part of the editor rather than a panel in it, reading the repository, running your commands, and showing you a diff.
Where AstraCode fits
AstraCode is an AI-native editor whose agents plan across the repository, run your tests, review their own work, and give you a diff to approve. AstraOne chooses the model for every task. And because the same agent runs in your terminal, your CI and inside JetBrains IDEs, it fits a team whichever IDE each person keeps. Free to start, no card.
If you are comparing it against Cursor, Copilot or Windsurf specifically, that is the comparison pages.
Sources
- JetBrains AI Assistant — JetBrains' own description of the assistant built into their IDEs. Checked 23 September 2026.
- GitHub Copilot documentation — Copilot as an extension to an existing editor rather than an editor of its own. Checked 23 September 2026.