# Grok Build Mode: Prompt-to-URL Behind SuperGrok Heavy

Times of AI Desk · 2026-07-28 · Work

[https://timesof.ai/2026/07/spacexai-grok-build-mode](https://timesof.ai/2026/07/spacexai-grok-build-mode)

> xAI launched Build Mode in early beta for SuperGrok Heavy—describe an idea, get a live preview in chat, publish to grok.me or a custom domain on web, iOS, and Android. End-to-end creation gated to the top paid tier; competes with ChatGPT Sites-style hosted builders.

Frontier labs are racing to own **end-to-end creation**, not just chat completions. Build Mode ties **Grok 4.5-era coding** to a **publish surface** and a **paid SuperGrok Heavy** gate—clear monetization for agentic generation.

**xAI** launched **Build Mode** in **early beta** for **SuperGrok Heavy** subscribers. Users describe an idea; **Grok** writes code and shows a **working preview inside the chat** on **grok.com**, **iOS**, and **Android**, then **publishes** to a **grok.me** link or a **custom domain**. Nothing to install for the default path—Sites-class hosted creation, Grok-branded.

## What shipped

| Item | Detail (x.ai primary) |
|------|------------------------|
| **Product** | **Build Mode** (mode switcher: choose **Build**) |
| **Access** | **Early Beta** — **SuperGrok Heavy** only |
| **Surfaces** | Web (**grok.com**), iOS, Android |
| **Outputs** | Websites, apps with state/logic, games (including 3D), interactive dashboards (with connectors) |
| **Publish** | **grok.me** share links or **custom domains** |
| **Workflow** | Prompt → live preview in conversation → iterate layout/features → publish |

Primary demos on the announcement include a forest driving game, isometric city sim, 3D physics playground, and browser beat machine—each generated from a single natural-language brief.

Distinct from **Grok Build** (coding agent / TUI / open-source harness), **Grok Automations** (scheduled jobs), and Microsoft / Workspace **add-ins**. Competes in the consumer/prosumer lane as **ChatGPT Sites**-style hosted builders: describe → ship a URL, not only generate code for local deploy.

## Limits

- Early beta; SuperGrok Heavy only—tier expansion after beta is unannounced.
- Multi-session app quality and custom-domain reliability are product claims, not audited here.
- Demo gallery is lab-selected.

## Sources

- [xAI: Introducing Build Mode (July 28, 2026)](https://x.ai/news/grok-build-mode)
- [xAI Build Mode product page](https://x.ai/grok/build-mode)