OpenAI Codex

OpenAI's coding agent across ChatGPT, CLI, IDE extension and cloud; runs parallel agents and reviews PRs.

Is OpenAI Codex right for you?

OpenAI Codex is ranked #3 of 6 in AI coding agents & IDEs on ShipStack. Best for: Delegating parallel tasks. Cloud + local agent flexibility.

Rank: #3 in AI coding agents & IDEs
Best for: Delegating parallel tasks
Why this rank: Cloud + local agent flexibility
Pricing: Included with ChatGPT Plus ($20) and Pro ($100); Business $20/seat (annual, 2+ seats)
Official site: https://openai.com/codex
Verified: 2026-10-13

AI coding agent and editor with cloud agents, automations and Bugbot code review.

💲 Free; Plus $8/mo (Grok models only); Premium $30/mo; Super $100/mo; Ultra $200/mo; Teams from $30/user/mo

Best for: Daily driver IDE for builders

Most mature agentic IDE experience

Anthropic's agentic coding tool for terminal and IDE: understands your codebase, edits files, runs commands.

💲 Claude Free; Pro $20/mo ($17/mo annual); Max from $100/mo

Best for: Large refactors from the CLI

Strong autonomous multi-file edits

AI coding agent that works from issue to merged PR, in your editor, terminal and on GitHub.

💲 Free; Pro $10/mo; Pro+ $39/mo; Max $100/mo

Best for: Teams already on GitHub

Broadest editor/GitHub integration