Hosted app vs coding agent comparison
Frontier comparisonChatGPT Sites vs OpenAI Codex: Complete Comparison
ChatGPT Sites is OpenAI's public-beta product that creates, hosts, and shares websites and web apps from ChatGPT.
Featured · Updated today · Last verified: September 2026 · Score 96
Choose ChatGPT Sites when
Prompt-to-hosted website, dashboard, or game on a ChatGPT URL.
Choose OpenAI Codex when
Repository coding, tests, and reviews you host yourself.
Short verdict
Different jobs. Sites hosts. Codex codes.
Key differences
Hosted ChatGPT runtime vs developer coding agent.
Best for
Match the artifact: a URL or a repository.
Reasoning fit
Neither is a general chat model comparison.
Coding workflow fit
Codex for source. Sites for the published experience.
Multimodal fit
Sites can ship a visual site. Codex can generate the files you then host elsewhere.
Enterprise fit
Sites: no residency, admin public-publish gate. Codex: standard ChatGPT enterprise controls.
Who should not choose this?
- Do not pick Sites for PHI or card data.
- Do not pick Codex expecting chatgpt.com hosting.
- Do not treat Sites as a public API.
Cost considerations
Sites uses ChatGPT plan limits. Codex uses Codex/ChatGPT usage. Neither is API token billing alone.
Limitations
Verified September 13, 2026.
Final recommendation
Start with the output. If it must live at a ChatGPT URL, use Sites. If it must live in git, use Codex.