OpenAI Codex vs Codeium

A side-by-side comparison to help you choose the right tool.

OpenAI Codex scores higher overall (86/100)

But the best choice depends on your specific needs. Compare below.

Pricing
Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.
Free plan
Yes
Best for
Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem
Platforms
web, mac, windows, linux, api
API
Yes
Languages
en
Pricing
Free plan with unlimited completions for individual developers. Teams plan at $12/user/month. Enterprise plan with custom pricing.
Free plan
Yes
Best for
individual developers who want quality AI completions without paying, students and hobbyists learning to code with AI assistance, developers using less common IDEs that other tools do not support, teams evaluating AI coding tools before committing to paid options
Platforms
desktop, web
API
No
Languages
en

Choose OpenAI Codex if:

  • You are Developers who want AI to work more directly on real code tasks
  • You are Teams exploring terminal-first coding agents
  • You are Engineers already invested in OpenAI's ecosystem
  • You want to start free
Read OpenAI Codex review →

Choose Codeium if:

  • You are individual developers who want quality AI completions without paying
  • You are students and hobbyists learning to code with AI assistance
  • You are developers using less common IDEs that other tools do not support
  • You want to start free
Read Codeium review →

FAQ

What is the difference between OpenAI Codex and Codeium?
OpenAI Codex is openai's coding agent experience for writing, editing, understanding, and operating on codebases with a more agentic workflow. Codeium is free ai code completion tool that provides fast inline suggestions, chat, and search across all major ides without requiring a paid subscription.
Which is cheaper, OpenAI Codex or Codeium?
OpenAI Codex: Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.. Codeium: Free plan with unlimited completions for individual developers. Teams plan at $12/user/month. Enterprise plan with custom pricing.. OpenAI Codex has a free plan. Codeium has a free plan.
Who is OpenAI Codex best for?
OpenAI Codex is best for Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem.
Who is Codeium best for?
Codeium is best for individual developers who want quality AI completions without paying, students and hobbyists learning to code with AI assistance, developers using less common IDEs that other tools do not support, teams evaluating AI coding tools before committing to paid options.