OpenAI reports that ChatGPT users have created over five million Sites in three months

Five‑million Sites milestone announced

OpenAI disclosed on September 11 that ChatGPT users have created more than five million Sites since the feature launched three months ago.

The figure was shared in an eight‑post thread on X, the company’s official account.

Sites is described by OpenAI as a tool that lets people build and host functional, interactive web apps without assembling a separate development and deployment stack.

"ChatGPT Sites puts app generation, hosting and distribution inside one product," the announcement reads.

The count reflects total creations, not the number of distinct creators, published sites, or active deployments.

OpenAI notes that a single user can generate multiple Sites, and public‑beta limits apply across all Sites tied to an account.

Nevertheless, the milestone demonstrates how quickly a new creation tool can reach a large existing user base.

How Sites expands the ChatGPT ecosystem

OpenAI first previewed Sites on June 2 as part of an expansion of its Codex capabilities beyond traditional software development.

The early pitch emphasized internal tools such as dashboards, launch trackers, and calculators that could be shared via a hosted URL.

At that time, OpenAI reported that more than five million people used Codex each week, with roughly 20 % identified as non‑developers.

By positioning Sites between prompting and deployment, OpenAI aimed to turn conversational outputs into publishable web experiences.

A typical workflow involves describing a website or app, reviewing the generated result, requesting changes, and publishing—all without leaving the ChatGPT interface.

Current documentation states that Sites can create interactive websites and lightweight apps from ChatGPT, the web‑based Work version, or the desktop Codex app.

The company has broadened the showcase from internal dashboards to consumer‑facing experiments.

Highlighted examples include a pixel‑art creature‑collecting game, a browser‑based 3D coloring tool, an alert page that merges earthquake and space‑weather data, a theatrical calculator, a shared Japanese word‑chain game, and an interactive visual story about emotional connections with AI.

These public projects illustrate a shift toward creative and entertainment use cases that can be accessed via chatgpt.site subdomains.

Limitations and next steps for the beta

Collaboration features have also been added, allowing a Site owner to grant editing access to another eligible member of the same ChatGPT workspace.

Collaborators can modify the project, save versions, and publish revised editions after the initial deployment.

Ownership controls let the primary creator manage access, the Site’s name and URL, ownership transfers, secrets, and custom‑domain settings.

Sites can be limited to the owner, selected users, or an entire workspace, while eligible accounts may publish to the broader internet.

OpenAI supports custom domains where users already own the domain and can configure DNS records accordingly.

In Enterprise workspaces, administrators can restrict Site creation or public publishing, and public publishing is disabled by default.

Because five million creations generate significant storage and bandwidth demands, OpenAI labels Sites as a public beta and applies plan‑specific limits on new projects, storage, or continued public availability for high‑usage Sites.

The beta also does not support data residency or inference residency at launch, a constraint that may affect organizations with strict compliance requirements.

OpenAI’s announcement provides an early distribution metric for its broader ambition to make ChatGPT a platform where software is built, published, and used.

Active usage data and retention rates will determine whether Sites evolves from a novelty into a sustainable platform for developers and non‑technical creators alike.

Why This Matters: The five‑million creation count shows that ChatGPT can quickly mobilize a large user base to generate and host web apps, giving OpenAI a measurable foothold in the low‑code web‑app market.