Cursor is a full IDE replacement with Claude/GPT-4 integration built into the editor itself, while Codeium is a lightweight autocomplete plugin compatible with existing IDEs like VS Code and JetBrains. Cursor offers deeper AI integration but requires switching editors, whereas Codeium integrates seamlessly into your current workflow.
Codeium vs Cursor — Side-by-side comparison on A Versus B
Choose Codeium if you want lightweight, non-invasive AI autocomplete that works across multiple IDEs and languages without switching your existing editor—ideal for developers who prioritize flexibility and free unlimited completions. Choose Cursor if you're willing to switch to a new editor for superior AI chat capabilities, deeper context understanding, and first-class integration with Claude/GPT-4 models—better for those doing complex refactoring or architectural work.
Lightweight AI code autocomplete plugin supporting 70+ IDEs and languages with a free tier.
VS Code-based IDE with deeply integrated Claude/GPT-4 AI for coding, chat, and refactoring.
Structured comparison data for Codeium vs Cursor with 241 attributes.
Primary AI Model Quality (MMBENCH score)
Context Retention (consecutive requests)
Codeium vs Cursor — Attribute Category Vocabulary
Taxonomy of attribute categories used to classify comparison data for Codeium vs Cursor.
Can I use Codeium in VS Code and Cursor at the same time?
Yes, you can use both tools in parallel. Codeium is a VS Code extension, while Cursor is a separate IDE based on VS Code. You can install Codeium in your standard VS Code and run Cursor as an independent application. However, most users find Cursor's integrated AI capabilities reduce the need for Codeium once they switch.
Which has better code completion accuracy?
Cursor generally produces higher-quality completions due to deeper integration with Claude 3.5 Sonnet and improved context awareness. However, Codeium's accuracy depends on which backend model you select—using Claude or GPT-4 options narrows the gap significantly, though this requires a paid plan.
It depends on your workflow. If you spend significant time on AI-assisted refactoring, debugging, or writing complex logic, Cursor's superior chat and context features justify the switch. If you primarily use AI for quick autocompletion and work across multiple IDEs, Codeium's flexibility is better. Most solo developers switching report a 20-30% productivity boost with Cursor.
No, Cursor requires internet connection for all AI features, including basic autocomplete. Codeium also requires internet for cloud-based completions, though some self-hosted enterprise versions exist. For truly offline coding, neither tool is suitable.
Which tool has better privacy and data security?
Both encrypt data in transit, but Cursor (being proprietary) has less transparency on data retention. Codeium offers an enterprise option with on-premise deployment for teams requiring strict data control. For sensitive code, verify their privacy policies—both allow opting out of usage tracking in paid plans.