# AI IDE

**Source:** https://promtable.com/glossary/ai-ide

> An AI IDE is a code editor with AI features built into the core editing experience — inline completion, chat panel, agent mode, codebase RAG, MCP server integration. Cursor, Zed, Windsurf, JetBrains with AI Assistant, VS Code with Copilot are 2026 leaders.

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An AI IDE is a code editor with AI features built into the core editing experience — inline completion, chat panel, agent mode, codebase RAG, MCP server integration. Cursor, Zed, Windsurf, JetBrains with AI Assistant, VS Code with Copilot are 2026 leaders.

The 'AI plugin on top of an editor' era ended around 2024; by 2026 AI IDEs treat AI as a first-class system, not an extension. Common features: inline completion (Copilot, Tab in Cursor), chat panel scoped to the codebase, agent mode that edits across files, codebase indexing via embeddings + retrieval ([[graph-rag]]), MCP server support for custom tools, plan mode (Cursor, Claude Code) showing the agent's plan before execution. Trade-offs: more capable AI IDEs are heavier and more opinionated; pure code editors stay lighter and faster. Production teams in 2026 typically standardize on one (Cursor / Windsurf / VS Code+Copilot) and allow others.

## When to use

- Production development workflows.

## Common mistakes

- Spreading across too many IDEs — config + key + MCP-server proliferation.

## Related terms

- [ide-agent](https://promtable.com/glossary/ide-agent)
- [ai-pair-programming](https://promtable.com/glossary/ai-pair-programming)
- [code-action](https://promtable.com/glossary/code-action)

*Last updated: 2026-06-01*
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Original page: https://promtable.com/glossary/ai-ide
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