Terminal-based AI coding engine for building complex multi-file features and managing large codebases.
Try Plandex

Software Engineers, Full-Stack Developers, DevOps Engineers, Engineering Teams
Free, high-speed AI code completion, in-IDE chat, and context-aware refactoring.
Better if you specifically need a different approach.
View Plandex→Offers the most features for the lowest barrier to entry.
By Plandex
Terminal-based AI coding engine for building complex multi-file features and managing large codebases.

By Codeium
Codeium is a developer acceleration platform providing ultra-fast code completion, in-editor chat, and repo-wide context across 70+ programming languages and 40+ IDEs.
| Feature | Codeium | |
|---|---|---|
| In-IDE Contextual Chat | remove | check_circle |
| Ultra-Fast Code Autocomplete | remove | check_circle |
| Windsurf Next-Gen Editor | remove | check_circle |
| Zero-Data Retention Security | remove | check_circle |
Codeiumverified
Codeiumverified
Codeiumverified
Codeiumverified
Codeiumverified
CodeiumverifiedWe analyze tools across multiple dimensions including speed, ease of use, and feature set. Plandex tends to shine in raw performance and speed, while Codeium offers strong competition particularly in specialized workflows.
Check their website for the latest pricing.

Complete AI developer toolkit for individual programmers.
For engineering teams needing central management.
Combine Plandex with these tools for maximum efficiency.
Leverage Codeium's strengths with this specialized stack.

Choosing between Plandex and Codeium comes down to your primary use case. If your focus is on general productivity, then Plandex provides a more robust and polished experience. Conversely, if you specifically need software engineers and value generous free individual plan, Codeium is the clear winner.
Ideal for individuals and teams who prioritize a streamlined interface and core capabilities.
Best for software engineers, full-stack developers, devops engineers, engineering teams looking for unmatched ide compatibility.
Common questions about comparing these tools.
AI-first code editor fork of VS Code with codebase-wide indexing, Composer, and fast autocomplete.
AI pair programming in your terminal.