Codeium
Free AI code completion and chat across 70+ IDEs, with enterprise self-hosting available.
Codeium is a free AI code completion and chat across 70+ IDEs, with enterprise self-hosting available. Free tier remains available for individual developers without time limit.
What it does well
- Free tier remains available for individual developers without time limit.
- Enterprise plan offers fully self-hosted deployment on customer infrastructure.
- Broad IDE coverage including Neovim, Emacs, and Eclipse.
Where it falls short
- Free tier uses smaller models than Cursor or Copilot premium tiers.
- Codeium has shifted focus toward the Windsurf editor — pace of standalone extension updates has slowed.
Tagged
- Self-hostable
- VS Code Extension
- JetBrains Plugin
- Enterprise Plan
- Freemium
Compared with similar things
Picked by shared tags inside the Code Completion.
- 01Freemium →Sourcegraph Cody
Code-search and AI assistant by Sourcegraph — semantic search across enterprise codebases plus inline coding help.
- 02Freemium →Tabnine
Enterprise AI code completion with private models, zero data retention, and on-prem deployment options.
- 03Freemium →Amazon Q Developer
AWS's coding assistant (formerly CodeWhisperer) tuned for AWS APIs, infra-as-code, and migration tasks.
- 04Freemium →Tabby
Self-hosted, open-source GitHub Copilot alternative built on open-weights code models.
- 05Freemium →GitHub Copilot
GitHub's AI pair programmer with chat, inline completions, and agent mode across major IDEs.
- 06Freemium →Qdrant
Open-source, Rust-based vector database optimised for high-recall similarity search.
Featured in
- 6 Best GitHub Copilot Alternatives in 2026
The strongest GitHub Copilot alternative for agentic work is Cursor — an AI-native editor whose multi-file agent goes further than Copilot's. Windsurf is the other agent-first editor. For free unlimited completion, use Codeium; for open-source, bring-your-own-key control, try Cline, Aider, or Continue. Every option here has a free tier.
- 7 Best Cursor Alternatives in 2026
The closest Cursor alternative is Windsurf — the other AI-native editor, with a multi-step Cascade agent and a more generous free tier. To leave the IDE for a terminal agent, use Claude Code or Aider. For free, open-source, bring-your-own-key tools, try Cline or Continue. Every option here has a free tier.
Concepts you should know
- Code completion
The category of AI assistance that suggests next tokens, lines, or short blocks of code inside an existing editor. Implemented as IDE extensions; characterised by low-latency, model-server architecture and per-keystroke suggestions.
- Tab completion
Inline code suggestion that appears as ghost text and accepts on Tab. The original AI-assist UX, popularised by GitHub Copilot in 2021. Distinct from chat, edit, and agent modes which involve multi-turn interaction.
Frequently asked questions
- What is Codeium?
- Codeium is a free AI code completion and chat across 70+ IDEs, with enterprise self-hosting available.
- Is Codeium free?
- Codeium offers a free tier and paid plans with higher limits or premium features.
- What platforms does Codeium support?
- Codeium runs on vscode-ext, jetbrains-plugin, web.
- What category does Codeium belong to?
- Codeium is in the Code Completion category — Inline AI suggestion extensions for existing IDEs — Copilot-style autocomplete, low-latency model servers, BYOK.
- What are the downsides of Codeium?
- Free tier uses smaller models than Cursor or Copilot premium tiers. Codeium has shifted focus toward the Windsurf editor — pace of standalone extension updates has slowed.