Alternatives to Codex
Codex These options were selected to replace all or part of Codex’s workflow. Compare their purpose, limitations and free-plan terms: freemium does not mean entirely free.
Free and open source
OpenCode · opencode.ai
Open-source AI coding agent in the terminal that works with any AI model.
Keep in mind: Terminal-based, no graphical editor
FreeOpen sourceAI
Freemium
Cursor · cursor.com
Code editor with a built-in AI agent that writes and edits code with you.
Keep in mind: Very limited AI requests for free
FreemiumAI
GitHub Copilot · github.com
GitHub's AI coding assistant: completions, chat and agent in VS Code and other editors.
Keep in mind: Limited free quota
FreemiumAIBrowser extension
Paid or pricing to confirm
Claude Code · claude.com
Anthropic's coding agent: describe your website or app and it writes, tests and fixes the code in your project.
Keep in mind: Less intuitive than Lovable
PaidAI