Making a slide deck is mostly not thinking. It’s resizing text boxes, hunting for a stock photo that isn’t terrible, and nudging things half a pixel until they line up. Gamma takes that part off your hands.
You give it a topic, an outline, or a document you already wrote. It comes back with the whole deck built: layout, images, styling, done. It’s the kind of thing you try once for an internal update and then quietly stop opening PowerPoint for, honestly.
What it means
Gamma is a web app that generates presentations, documents, and web pages from a text prompt. You describe what you want, or paste in notes you already have, and it builds the finished thing. Grant Lee, James Fox, and Jon Noronha started the company in 2020. Instead of slides with fixed dimensions, it makes cards that scroll and resize, so a Gamma deck behaves more like a web page than a PowerPoint file.
Why it matters
Gamma passed $100 million in annual recurring revenue and raised at a $2.1 billion valuation in November 2025, with more than 70 million users as of 2026. For a product that mostly makes internal slide decks, that says something about how much time people were losing to formatting.
The card layout doesn’t map cleanly onto 16:9 slides. Export to PowerPoint works on paid plans, and the free plan gives you a PDF or a share link. Either way the formatting shifts, so a client who needs a tidy .pptx means cleanup work on your end. Presenting from Gamma itself sidesteps the whole problem.
It isn’t really a slides tool anymore. Version 3.0 added an agent that researches and restyles on request, plus a public API, and in March 2026 the company shipped image generation for charts, social graphics, and marketing assets. That puts it closer to Canva than to PowerPoint.
Simple example
You walk into a tailor with a photo on your phone. Navy, single button, wedding in three weeks. You walk out with a suit that fits and looks right in every photo anyone takes of you that day.
It isn’t the suit you’d have built yourself if you knew fabric weights and had opinions about lapel width. But you don’t, and you had three weeks. You can send it back for alterations. You just aren’t the one cutting the cloth.