About OpenAI Codex
OpenAI Codex is a software engineering agent from OpenAI. According to the catalog description, it is available in the cloud, in the terminal and in IDEs, which lets developers hand off coding tasks or work with the agent interactively in the environment they already use.
The vendor's page could not be read when this entry was prepared, so specific features, supported models and plan details are not listed here. Readers should consult the OpenAI Codex page for current capabilities, availability and pricing information before relying on it.
Key features
- Coding agent for software tasks
- Cloud-based task execution
- Works from the terminal
- Integration with code editors
Good fit for
- →Delegating coding tasks to an agent
- →Working with an AI assistant in the terminal
- Tags
- coding-agent
- ai-coding
- openai
- cli
- ide
- developer-tools
OpenAI Codex: questions and answers
- What is OpenAI Codex used for?
- OpenAI Codex is a coding agent from OpenAI that can take software engineering tasks in the cloud, from a terminal and from within a code editor. It is a good fit for delegating coding tasks to an agent and working with an AI assistant in the terminal.
- How much does OpenAI Codex cost?
- OpenAI Codex is a paid product with no free plan.
- Is OpenAI Codex open source?
- No. OpenAI Codex is proprietary (closed-source) software. Open-source alternatives to OpenAI Codex include OpenCode, Kilo Code and Cline.
- What are some alternatives to OpenAI Codex?
- OpenAI Codex competes with Claude Code, Cursor and Devin. For open-source options, see Enlisted's ranked list of open-source OpenAI Codex alternatives.
Open-source alternatives to OpenAI Codex
See all
OpenCode
AI Tools
The open source coding agent.
MITvs Claude Code★ 211k
Kilo Code
AI Tools
Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with
MITvs Cursor★ 27k
Cline
AI Tools
Autonomous coding agent as an SDK, IDE extension, or CLI assistant.
Apache-2.0vs GitHub Copilot★ 70k
Aider
AI Tools
aider is AI pair programming in your terminal
Apache-2.0vs Claude Code★ 49k
Gemini CLI
AI Tools
An open-source AI agent that brings the power of Gemini directly into your terminal.
Apache-2.0vs Claude Code★ 107k
OpenHands
AI Tools
🙌 OpenHands: AI-Driven Development
MITvs Devin★ 90k
SaaS alternatives to OpenAI Codex
See all
Claude Code
AI Tools
Anthropic coding agent for the terminal, IDEs and web that edits code and runs commands
SaaS
Cursor
AI Tools
AI-first code editor with chat, multi-file edits and autonomous coding agents
SaaS
Devin
AI Tools
Autonomous AI software engineer that takes tickets and opens pull requests
SaaS
GitHub Copilot
AI Tools
GitHub Copilot is an AI coding assistant and agent that works in editors, the terminal, on desktop and on GitHub, from issue to pull request.
SaaS
Jules
AI Tools
Asynchronous coding agent from Google that works on GitHub repositories
SaaS
Google Antigravity
AI Tools
Agent-first coding environment from Google built around Gemini models
SaaS

