OpenAI Launches Codex Sites Tool to Turn Prompts Into Interactive Web Apps for Business and Enterprise Users

OpenAI has announced a new feature called Sites, built into its Codex app, that lets users describe a website or web application in plain English and have it built, hosted and published — all without touching a separate deployment platform. For anyone who has ever wanted to spin up a working web tool without knowing how to configure a server, that’s a fairly big deal.

The announcement came via OpenAI’s official account on X, formerly Twitter, where the company confirmed that Sites would roll out to ChatGPT Business and Enterprise plans first, before expanding to other tiers.

What Is Codex Sites, Exactly?

Codex is OpenAI’s coding-focused AI tool, trained on large volumes of source code and natural language to help users write, modify and understand code across multiple programming languages. Think of it as a specialist version of ChatGPT that’s been built with software development in mind.

Sites is a plugin within Codex that takes that code-generation ability a step further. Rather than just writing code for a user to then deploy themselves, Sites handles the whole process — creating the site, saving a deployable version, validating the build, and publishing it to a URL that can be shared with others. No separate hosting account, no manual deployment scripts, no need to understand what a server even is.

To use it, a user adds the Sites plugin inside the Codex app, then describes what they want in a new thread. You could type something like “build me a simple event booking form for our team” and Codex, using Sites, will generate and deploy it. Users can also invoke the plugin directly using `@Sites` in their prompt.

Who Can Use It Right Now?

Sites is currently in preview — meaning it’s live but still being refined — and access is limited to ChatGPT Business and ChatGPT Enterprise workspaces. For Business plan users, Sites is switched on by default, so there’s nothing extra to configure. Enterprise users will need a workspace admin to enable it through the role-based access control settings in the ChatGPT admin console.

OpenAI’s own documentation advises caution before making any new site publicly accessible. The guidance recommends keeping access restricted to the owner and workspace admins initially, until the content, data handling practices, and intended audience have been properly reviewed. That’s sensible advice — above all for organisations handling sensitive information.

The Sites management panel, accessible from the app’s sidebar, lets users return to existing projects, check deployment status, review saved versions, manage who can see a deployed site, and configure environment variables and secrets — the kind of sensitive configuration details, such as API keys, that shouldn’t be embedded directly in source code.

A Broader Shift Towards Low-Code Development

Sites fits into a wider industry movement away from requiring specialist deployment knowledge for every digital project. Tools that let non-developers build and publish working applications have been growing in popularity for years, but the addition of AI-generated code raises the ceiling considerably. Where older low-code tools were often limited to fairly simple layouts, something like Codex Sites can, in principle, generate a functioning web application from a conversational description.

That said, the developer community isn’t universally enthusiastic. Some welcome the productivity gains and the removal of repetitive setup work. Others raise legitimate questions about vendor lock-in — the risk of becoming dependent on a single proprietary platform for hosting and deployment, which could limit flexibility down the line.

Privacy and digital rights advocates have also raised broader concerns about concentrating both application hosting and AI-assisted development within one large provider, above all around data residency and transparency over how user information is handled inside Sites-hosted applications.

OpenAI was founded in 2015 as an AI research organisation and later adopted a capped-profit structure. It has not publicly quantified specific productivity gains or cost savings from Sites, and no independent UK statistics currently measure the tool’s economic impact — so any such claims should be treated with caution until evidence emerges.

What This Means for Kent Residents

Businesses and public-sector organisations in Kent that already subscribe to ChatGPT Business or ChatGPT Enterprise — including, potentially, teams at Kent County Council or NHS Kent and Medway Integrated Care Board — could use Sites to prototype internal tools or simple web applications more quickly, though any deployment involving personal data would need to be assessed against UK GDPR and relevant information security policies before going live. Kent-based SMEs, digital agencies and tech start-ups on the relevant OpenAI plans may find the tool useful for faster prototyping of client-facing work. For most Kent residents, the practical effect will simply be encountering more AI-assisted web tools in everyday life — the technology behind them invisible, the URL in the browser bar looking much the same as any other.