Best fit · Coding 03

Codex

OpenAI's coding agent in the terminal, editor, and cloud.

Codex is OpenAI's coding agent for writing, reviewing, and shipping code. You can use it from the Codex CLI, an IDE extension, the ChatGPT app, and Codex Cloud, which runs tasks on OpenAI-managed computers and can keep going after you close your laptop. You sign in with a ChatGPT account.

Where it ranks

03
Codingof 13
Third as OpenAI's coding agent for a repository: CLI, IDE extension, ChatGPT, and cloud tasks. It sits behind Cursor, the editor people work in, and Claude Code, the other dedicated repository agent. It is ahead of Copilot because Codex is built to carry a coding task, not only to assist inside an editor.

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Comparisons

Others for coding

01
Cursor
AI code editor with an agent that edits across a project.
02
Claude Code
Anthropic's coding agent for a repository.
04
GitHub Copilot
Coding assistant in GitHub and in common editors.
05
Devin
Autonomous software-engineering agent you assign work to.

Where it ranks

Codingof 13

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Comparisons

Others for coding