Artifacts

Some replies aren’t conversation — they’re deliverables. A block of code, a written document, a diagram, a working web page. Catalyst pulls these out of the chat scroll into an artifact: a panel beside the conversation where the thing actually renders, updates as the model revises it, and can be downloaded.

Here the model was asked for a Three.js scene. It wrote a complete HTML page and the artifact panel opened on the right with the result running live — an interactive, orbitable 3D torus knot, not a screenshot of one:

What becomes an artifact

Live web pages

HTML/CSS/JS (and libraries like Three.js) run in a safe, sandboxed preview you can actually interact with.

Code

Syntax-highlighted in the right language, ready to copy or download.

Documents

Formatted Markdown you can read, refine, and export to Word or PDF.

Diagrams & SVG

Mermaid flowcharts, sequence diagrams, and vector graphics, rendered live.

Preview, code, and download

Every artifact panel gives you two views, switchable at the top:

• Preview — the rendered result: the running web page, the diagram, the formatted document.
• Code — the underlying source behind it.

From the panel you can copy the contents or download the file, and documents can be exported to Word or PDF. The panel is resizable; on a phone it takes over the full screen instead of splitting the view. It opens automatically the first time the model produces an artifact in a response.

Versions

Artifacts are versioned. When you ask the model to change something — “make the knot spin faster,” “add a color picker,” “fix that bug” — it produces a new version rather than overwriting the old one. Step back through earlier takes with the version switcher, so experimenting is safe: nothing good is ever lost to a revision.

Tip

Artifacts are the bridge to the rest of Catalyst. A code artifact can run in chat, a document can export to Word or PDF, and a workflow the model designs arrives as an artifact with a Save button — see Promote a chat to a workflow.

Turning artifacts off

Artifacts are on by default. If you’d rather everything stay inline in the conversation, you can disable them in your account settings.