Cursor (AI editor)
AI-first code editor — a fork of VSCode with built-in LLM chat, multi-file edits, "Composer", and Tab autocomplete that sees the whole codebase.
Anysphere, 2022. Originally GPT-4-driven; today uses Claude 3.5/4 Sonnet as default but can switch. "Tab" is broader than Copilot — suggests multi-line changes across multiple files at once. Local indexing with embeddings for context.
Between 2023 and 2025 Cursor became the de facto standard at AI startups and some Big Tech developers. Competitors: Windsurf (Codeium), Zed, GitHub Copilot Workspace. Aider for terminal purists.