With a little bit of work, it works very well. You can generate powerpoint directly with Codex or Claude Cowork. There is also Canva support for these tools and it has its own AI integration. Another useful tool in this space is the Gemini integration in Google slides.

If you are a bit technical, reveal.js is actually really nice for this. I one shotted a pdf export for that uses a headless browser. I've used that a few times now.

What works well for me is to take an existing presentation and then some raw input and generate a new presentation in the same style as the old one from the raw input. After that, I can go in and tweak individual slides.

Another thing I did recently was take somebody's existing pitch deck and fix it with a one line prompt: "this deck is a bit meh, pimp it!" that worked unreasonably well. I like using shitty prompts like that. Codex often manages to do the right thing if you don't overthink your prompts.

Classic deck of somebody that used way too much text and only bullets. It did a great job on that presenting the content in a more simple and better structured way. Pulling out key facts and highlighting those, simplifying text, etc. Doing that manually would have taken hours.