OpenAI Codex
OpenAI · since 2025
Cloud + CLI software engineering agent
| Pricing | Paid |
|---|---|
| Level | Intermediate |
| Category | AI Coding & Development |
| Best for | Software developers |
| Note | Original 2021 Codex API was retired in 2023 |
Tags: code, agent
Alternatives to OpenAI Codex
- Claude Code — Terminal-based agentic coding assistant
- Cursor — AI-first code editor with agentic multi-file editing
- GitHub Copilot — AI pair programmer: completions, chat and coding agent in IDEs
- Windsurf — Agentic AI IDE (Cascade) from the former Codeium
- Aider — Open-source AI pair programming in the terminal
- Amazon Q Developer — AWS coding assistant and transformation agent