OpenAI Adds "Sites" to Codex, Letting You Share Apps via URL
On June 2, 2026, OpenAI announced on its official X that it had added a new feature called "Sites" to its coding agent "Codex," which converts work, ideas, and plans into interactive websites and apps that can be shared via a single URL. It is initially rolling out as a preview to ChatGPT's Business and Enterprise plans, with plans to expand to broader availability in the future.
Sites is a feature in which, simply by giving instructions via a prompt, Codex generates apps such as internal tools, dashboards, project boards, and review screens, handles hosting end-to-end, and issues a shareable URL. The flow involves adding the @Sites plugin within Codex, instructing it to create and deploy a site, saving a version for review or deploying to production, and sharing via URL. It also supports deployment from existing projects (official documentation).
On the technical side, it adopts Cloudflare Workers-compatible ES module output, and supports the relational database D1 and object storage R2. Workspace authentication, custom access control (owner/admins, entire workspace, specific users/groups), and environment variable/secret management are also possible. In terms of availability, it is enabled by default in Business, while in Enterprise an administrator enables it via RBAC (role-based access control) settings.
Codex originally evolved as a coding assistance tool offered as an IDE extension, CLI, and cloud version, and in recent years has been strengthened with integration into the ChatGPT app, browser control, parallel task processing, and more. Sites pushes this toward "no-code/low-code style app building, instant hosting, and sharing," with a strong focus on business use. The announcement is part of business-oriented updates related to "Intelligence at Work," released alongside an Annotations feature that lets you specify part of a created artifact and instruct revisions, as well as six business plugins for data analysis, creative, sales, product design, investment, and more (9to5Mac).
From a competitive standpoint, comparisons with similar AI tools such as Lovable, Bolt, v0, Cursor, and Replit Agent have been pointed out on X, and OpenAI positions its strength as offering "generation → hosting → URL sharing" end-to-end.
The official post drew high engagement, reaching over 12,370 Likes, over 4 million Views, and over 590 Replies. Among positive reactions were comments such as "non-engineers can create and share internal tools in minutes" and "internal dashboards and project boards can be created instantly," and Japanese users also voiced hopes for dramatic efficiency gains in internal tool development. On the other hand, while there were somewhat overheated reactions such as "a CS degree will no longer be needed," there were also calm voices pointing out differentiation from AI that builds relationships rather than creating tools. Since it is in the preview stage, hands-on evaluations are still limited, but posts accompanied by demo videos showing sales dashboards and decision-making tools stand out. Examples can also be confirmed in OpenAI's showcase.
Glossary
- Codex: OpenAI's AI coding agent. It supports IDE/CLI/cloud/browser and assists with code generation, editing, and execution from natural language.
- Sites: A new Codex feature. It generates and deploys interactive hosted websites and apps from prompts, shareable via URL.
- Annotations: A feature that lets you specify part of a created artifact and instruct Codex to make revisions. It supports code and documents.
- D1 / R2: Cloudflare's database (D1: SQL) and object storage (R2). Used in Sites for persistent data and file storage.
- RBAC (Role-Based Access Control): Role-based access control. In Enterprise, administrators can configure and restrict the use of Sites.
- Cloudflare Workers: A serverless computing platform that runs at the edge. Sites hosting uses technology compatible with this.