HTML slides or PowerPoint for a deck that AI makes

Why agents make decks in HTML

A coding agent writes HTML and CSS each day. A slide in HTML can hold a live chart, an animation, a table that sorts, or a demo. A layout is exact, and the type is the type that you chose. A PowerPoint file is a different format with a different layout model, so an agent has less control of the result.

What an export to PowerPoint loses

The makers of deck tools state the limits of their own exports. Gamma says that its PowerPoint and Google Slides exports "don’t include a slide master layout", that exports are static with no interactive elements, and that Google Slides ignores fonts embedded in an uploaded PowerPoint file.¹

An HTML deck has the same problem in a stronger form. A live chart becomes a picture. A font that is not on the computer of the reader changes. A layout that uses the width of the browser gets one fixed size.

Where HTML is weak

• A file named deck.html is hard to send. Mail and chat tools do not show it as a page.
• A person who does not write code cannot change a word in it.
• Two people cannot edit one file at the same time.
• There is no place to find the deck next month.

These are not faults of HTML. They are faults of a loose file. A deck in PowerPoint has a home in each company: a drive, a share link, and an editor that each person knows.

How to choose

• Choose PowerPoint when a client or a manager must edit the file in PowerPoint, or when the company template is a slide master.
• Choose HTML when you present from a link, when the deck has live parts, or when the design is the point.
• Choose a tool that makes both from the start when you are not sure. ChatGPT slides and Claude Design export to PowerPoint, and Claude Design also exports standalone HTML.^{2 3}

How to give an HTML deck a home

An HTML deck needs what a PowerPoint file gets from a drive: a link, an editor for people who do not write code, versions, and a folder. Sunday is made for this. An agent writes the deck as a page, a person changes each part by hand, and a share link opens it with no account. The same page is also the document. Sunday is in private beta.

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