Codeium

Codeium is a developer-focused AI toolkit that lives inside your editor, helping you write, understand, and refactor code through autocomplete, chat, and command-style natural-language edits.
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Core features
In-line autocomplete for single-line, multi-line, and whole-function suggestions based on context.
​Chat panel to ask questions about your codebase, get explanations, and generate or refactor snippets.
​Command mode to perform natural-language code edits like “add comments,” “convert to async,” or “optimize this query.”
​Supercomplete / Cascade for deeper, cross-file-aware suggestions using extended context and @-mentions.
​Support for 70+ languages and 40+ editors including VS Code, JetBrains, Neovim, and more.
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Key tools it offers
Autocomplete modality for real-time suggestions as you type, tuned for speed and relevance.
​Chat modality with repo context to debug, document, and explore design alternatives.
​Command modality for automated refactors and repetitive edits across selected code.
​Code search and navigation upgrades in some integrations, making it easier to jump between related symbols and files.
​Windsurf (separate AI-first editor by the same company) for users who want a full AI-native IDE built around Codeium’s models.
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Benefits for users
For individual developers: Speed up daily coding, reduce boilerplate, and get explanations on unfamiliar libraries without leaving the editor.
​For teams & startups: Use a cost-effective assistant with strong privacy controls and on-premise/self-hosted enterprise options.
​For education & bootcamps: Help learners understand patterns and receive guided suggestions while still writing and reviewing code themselves.