Building a slide deck from scratch is one of the most hated jobs in office life. You stare at an empty template for an hour, fiddle with fonts, then end up with thirty slides nobody will read. AI slide makers promised to end this misery. We wanted to see whether any of them actually do.

We gave three popular AI tools the same task: turn a page of rough notes into a ten-slide pitch deck. Then we judged them on speed, design quality, and how much cleanup was needed afterward. Here is how they ranked, with the catches nobody mentions on their landing pages.

One note on how we scored. Free tiers got full credit where they exist, because most people start free. Prices are approximate and change often, so treat them as a guide and check the current plan page before paying.

🥇 Gamma: best for going from notes to deck in minutes

Gamma is the closest thing to magic we have seen for presentations. Paste in rough notes, pick a vibe, and it builds a full deck with layouts, icons and photos in about a minute. The designs look genuinely modern, the kind of thing you would pay a freelancer a few hundred dollars for. The editor feels like a mix of Notion and PowerPoint, and most people figure it out in one sitting.

The free tier starts you with 400 AI credits, enough for several real decks. Pro costs around $10 a month and removes most limits. Gamma also builds documents and simple websites, so it can replace more than one subscription if your needs are simple.

The catch is a recognizable look. After a few Gamma decks, your colleagues start spotting the same card layouts and transitions. It is also weak on data-heavy slides. Charts exist, but fine-tuning them is clunky next to PowerPoint, and complex animations are out of the question.

🥈 ChatGPT: best for the story before the slides

ChatGPT does not make slides, and that is fine, because the hardest part of a deck is not the slides. It is the story. Feed ChatGPT your scattered notes and ask for a pitch structure, and it returns a tight narrative with slide titles, talking points and speaker notes. We now use it for every deck we build, regardless of which tool makes the slides.

The free tier handles this job easily. Plus, at around $20 a month, gets you the faster model and the ability to upload and analyze your old decks. It is also great at turning dense reports into slide-ready bullets, the boring conversion work nobody wants to do by hand.

The weakness is obvious: zero visual output. You are still copying text into a real slide tool, and ChatGPT cannot tell you whether a layout looks good. It writes the script. Somebody, or something, else has to shoot the movie.

🥉 Claude: best for sharp, persuasive slide copy

Claude writes better slide copy than anything else we tested. Give it a wordy paragraph and ask for a five-word headline, and it nails the tone: confident, concise, human. For decks where every word carries weight, investor pitches, sales decks, keynotes, it edits like a good copy chief who never gets tired.

Pricing mirrors ChatGPT: a generous free tier and Pro at around $20 a month. Claude also handles long documents gracefully, so if your deck starts life as a twenty-page report, it condenses it into slide-ready material better than the competition.

The catches: no visual output at all, and a habit of softening strong claims into safe corporate language. Watch for sentences that sound lovely and say nothing. A quick pass with your own red pen fixes it.

So which one should you pick?

Pick by bottleneck. If you want a finished deck fast and the content is simple, start with Gamma. The free credits alone cover several presentations. If your ideas are a mess and the blank page terrifies you, ChatGPT sorts the story first. If your drafts read flat and corporate, Claude sharpens the wording.

Our honest stack: ChatGPT free for the outline and story, Gamma for building the deck, Claude for a final pass on headlines. You can run the whole thing on free tiers, or pay around $10 a month for Gamma Pro if you present weekly. Either way, you never have to touch a blank template again.