Gamma generates a full presentation from one sentence, here is how good the output actually is
I have a genuine aversion to building presentations. The blank slide is one of the most demoralizing things I encounter at work. Gamma came up in conversation with a colleague who had used it for a client pitch and I tried it the same evening.
The core workflow is simple. You type a one-line prompt, choose whether you want a presentation, website or document, set how many cards you want, and then it generates an outline first before producing the final version. That outline step matters because you can edit it before committing, so you are not just crossing your fingers and hoping the structure makes sense.
You can also paste in existing text or import a PowerPoint, Word doc or Google Doc and it will build around what you already have. For me that was the most useful path because I usually have a rough draft in a doc that I then need to turn into something presentable.
After generation you can keep editing through a chat interface. Ask it to swap an image, add a new section, or suggest a different layout for a specific slide. It embeds interactive elements too, YouTube videos, charts, forms and buttons can all go inside the deck rather than being linked separately.
The analytics feature surprised me. You can see how long viewers spent on each card which is useful if you are sharing decks externally and want to know which sections people are actually engaging with.