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OpenAI Codex: pricing, features and alternatives (2026)
Coding agent · chatgpt.com
What OpenAI Codex does
Runs coding tasks in the cloud, CLI or IDE and proposes changes.
Best for: chatGPT users
OpenAI Codex alternatives
| Agent | Starting price | Best for | Compare |
|---|---|---|---|
| OpenAI Codex | Free; included with ChatGPT | ChatGPT users | This page |
| Claude Code | $20/mo (Claude Pro) | Serious builds on real codebases | Claude Code review |
| Cursor | Free; $20/mo | Developers who want AI in the editor | Cursor review |
| GitHub Copilot coding agent | Pro $10/mo (agent included) | Teams working in GitHub | GitHub Copilot coding agent review |
| Replit Agent | Free tier; Core $20/mo | Non-coders building real apps | Replit Agent review |
| Lovable | Free; Pro $25/mo | Founders launching MVPs | Lovable review |
OpenAI Codex FAQ
How much does OpenAI Codex cost?
OpenAI Codex pricing starts at Free; included with ChatGPT, according to its official pricing page (checked October 2026). Prices can change, so confirm on chatgpt.com before you buy.
Who is OpenAI Codex best for?
ChatGPT users. Runs coding tasks in the cloud, CLI or IDE and proposes changes.
What are the best OpenAI Codex alternatives?
Close alternatives include Claude Code ($20/mo (Claude Pro)), Cursor (Free; $20/mo) and GitHub Copilot coding agent (Pro $10/mo (agent included)).