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Best OpenAI Codex alternatives

7 tools that do what OpenAI Codex does, ranked by our overall review score.

Why are you switching?
  1. GitHub Copilot7.5An AI coding assistant that runs in most major IDEs and ties into GitHubEasier than OpenAI Codex
  2. Claude Code7.4Anthropic's coding agent across terminal, IDE, web and CIEasier than OpenAI Codex
  3. Cursor7.4An AI-first code editor with agents that run locally or in the cloudEasier than OpenAI CodexMore private than OpenAI Codex
  4. Cline7.3Open-source coding agent that runs on the AI models you chooseMore private than OpenAI CodexOpen source
  5. Google Antigravity6.9Google's agent-first coding platform: app, CLI, IDE and SDK
  6. Kiro6.8AWS's AI IDE and agent platform built around specs before code
  7. Windsurf6.7An AI IDE, now called Devin Desktop, for managing local and cloud coding agents