Let me tell you how I found Gamma.
I had a client pitch due in 36 hours. The brief was massive. The deck needed 20+ slides, data visualisations, a clean narrative structure — the kind of thing that used to take me a full weekend buried in PowerPoint, nudging text boxes by 2 pixels and arguing with myself about font sizes.
A colleague said, “Just try Gamma.” I was sceptical. Every AI presentation tool I’d tried before spat out generic slides that looked like a 2018 corporate template had a baby with a chatbot. But I was out of options and out of coffee, so I tried it.
That was three months ago. Since then I’ve used it for client decks, internal reports, a product walkthrough, a lead magnet landing page, and about a dozen other things I would have normally dreaded. Here’s everything I’ve learned — the good, the annoying, and the parts nobody talks about.
What Gamma Actually Is (And What It Isn’t)
Most people call it an AI presentation tool. That’s accurate but incomplete.
Gamma is better described as an AI-powered content canvas. You type a prompt or paste an outline, and it generates a full deck — copy, structure, layout, imagery — in seconds.
But unlike PowerPoint or Google Slides, the output isn’t static 16:9 slides. It uses a card-based format, which means each “slide” expands or contracts to fit the content. That same deck can be published as a web page, shared as a link, or exported as a PDF or PPTX.
That distinction matters more than it sounds. Gamma isn’t trying to replace PowerPoint. It’s doing something slightly different — it’s optimised for presentations that live on the internet and get shared via a link, not printed out or presented in a conference room with a clicker.
If your decks end up as email attachments that people download and open in PowerPoint, Gamma will frustrate you. If your decks get shared as live links and viewed in browsers, Gamma is one of the best tools on the market right now.
How the AI Generation Actually Works
Here’s where I want to be specific, because most reviews skim this part.
You start by typing a prompt — a topic, a job title, a rough description of what you need. Gamma gives you a structural outline first before generating anything. This is smart. You can edit the outline, reorder sections, add or remove points before the AI touches a single slide. I wish more tools did this.
Once you confirm the outline, it generates the full deck. On an average 10-card presentation, this takes roughly 30–45 seconds. The AI writes the slide copy, picks a visual theme, selects or generates images, and structures the layout simultaneously.
Then you get to edit. Gamma uses a Notion-style block editor — you click on any element and modify it directly. You can swap images, change themes, add embeds (videos, Loom, Figma files, Airtable), reorder cards, and ask the AI to rewrite specific sections.
In September 2025, they launched Gamma 3.0 with a significant upgrade: the Gamma Agent. This is a persistent AI assistant you can chat with inside the tool.
You can say “make slide 4 more visual” or “restyle the whole deck in a darker tone” or “that table I pasted — visualise it as a bar chart.” It works pretty well. Not perfectly, but well enough to save significant time.
The Agent is also connected to the web, so you can ask it to pull in current data and add it to your slides.
I tested this with some market data for a client report and it worked — though I’d verify the numbers manually before presenting them, because I caught one figure that was slightly off (a good reminder of why AI sometimes gets facts wrong).
The Credit System (Read This Before You Sign Up)
This is the part that catches people off guard. Gamma runs on an AI credit system, which can easily become an unexpected AI cost trap if you aren’t paying attention.
Every time you generate a presentation, create an image, or use an AI action, it costs credits. The free plan gives you 400 credits as a one-time allocation — not per month, just once. That’s roughly 10–15 presentations depending on length, which is enough to properly test the tool but not enough to rely on it.
Paid plans replenish credits monthly:
- Plus (~$8–10/month): ~1,000 credits/month, removes the watermark, unlocks basic brand kit
- Pro (~$18/month): unlimited AI creation, analytics, custom fonts, API access
- Ultra ($100/month): launched September 2025, advanced image models, Studio Mode
There’s also a rollover mechanic — unused credits carry over up to 2× your plan size. So Plus users can accumulate up to 2,000 credits before they stop accruing. But here’s the catch that nobody mentions clearly: if you pay annually, credits still refresh monthly.
You don’t get 12,000 upfront. Plan accordingly if you have a heavy launch month.
The refund policy is strict — 3 days from subscription date, and only if you’ve used below a threshold. A lot of negative reviews on Trustpilot (where Gamma sits around 1.7–1.9/5, which is notably low) are from people who didn’t notice this and tried to get refunds on annual plans. Worth knowing before you commit.
What I Actually Liked
Speed.
Not “pretty fast for AI” fast. Genuinely fast. A first-draft deck that would take me 2 hours in PowerPoint is ready in under a minute. Even if I spend another 20 minutes editing and refining, I’ve still saved significant time.
The outline-first approach.
Every time I’ve watched someone struggle with AI presentation tools, it’s because the AI jumps straight to generating slides from a vague prompt and produces something unusable. Gamma’s outline step forces a bit of structure before generation, and the output is noticeably better for it.
Web-first design.
The card-based format and live link sharing work brilliantly for remote presentations. Clients can view it on any device without downloading anything. Investor decks, client proposals, team updates — these all work better as Gamma links than as PPTX attachments.
The templates don’t look like templates.
I’ve seen Beautiful.ai decks and I can always tell. Gamma’s designs feel cleaner and more adaptable. The minimalist aesthetic works across industries without feeling generic.
Embeds.
You can embed YouTube videos, Loom recordings, Figma prototypes, Airtable bases, and more directly into slides. For product demos, this is genuinely useful.
Gamma Agent (on Pro plans).
Once you get used to it, having a chat-based AI editor inside the tool changes the workflow. Restyling, rewriting, restructuring — all of it is faster through conversation than through menus.
Where It Actually Falls Short
The PPTX export is a known problem.
This isn’t a minor formatting quirk — it’s an architectural issue. Gamma is built as a web-first rendering platform, so when you export to PowerPoint, it essentially flattens the web layout into static images. Animations disappear. Fonts substitute.
Text sometimes becomes uneditable image blocks. The engineering team has made incremental improvements over the past year, but this is a fundamental limitation, not a bug they’re about to fix.
If you need to hand off an editable PowerPoint to a client or colleague, Gamma is the wrong starting point. Use it to nail the content and narrative structure, then rebuild the slides natively in PowerPoint if needed.
Limited typography control.
You can’t set precise font sizes. You’re largely confined to modern sans-serif styles. For brands with specific type systems, this is frustrating. Custom fonts are locked behind Pro.
Your own images are awkward to use.
If you have product screenshots, brand photography, or specific visuals you want embedded, getting them in cleanly is more friction than it should be. The tool is much smoother when you let the AI pick images than when you try to supply your own.
Data accuracy needs manual checking.
I mentioned this with the Agent’s web search. The AI also sometimes shows slightly stale statistics in market analysis slides — one reviewer I found noted it was showing 2023 Netflix revenue figures labelled as 2024. Always verify numbers before presenting.
The free plan watermark blocks professional use.
“Made with Gamma” appears on every slide and every export until you pay. For internal drafts and personal use, this is fine. For anything client-facing or investor-facing, it’s a dealbreaker and you need at least Plus.
Who Should Actually Pay For It
I’ll give you the specific use cases where I’ve found Gamma genuinely worth the subscription cost, rather than a vague “it depends”:
- Freelancers and consultants who regularly build client-facing decks will recoup the Plus cost on the first proposal they don’t spend a Sunday building in PowerPoint.
- Startup founders building pitch decks benefit enormously from Gamma’s clean design defaults — the output already looks investor-ready, which matters when you’re time-poor.
- Content marketers who want to repurpose long-form content into web-based presentations or landing pages will find the card-based format genuinely useful.
- Educators who share materials via links (rather than handing out files) will find Gamma works well for course modules, workshop guides, and structured content.
- Corporate teams where presentations get shared as links internally — team updates, OKR reviews, project readouts — can use Gamma heavily on Pro’s unlimited generation without watching the credit meter.
If you’re in an enterprise environment where everything ends up as a PowerPoint attachment that people annotate in Track Changes, Gamma isn’t the tool for you. It’s solving a different problem—proving that AI won’t replace your team, but it will replace your workflow.
The Gamma 3.0 API and Automation Angle
This is underreported. In September 2025, Gamma launched their official API alongside Zapier and Make integrations. This opens up genuinely interesting workflows — connecting Gamma to ChatGPT, Google Drive, HubSpot, Gmail, Slack, and other tools.
The obvious use case: automated reporting. If your team generates monthly performance decks from data that lives in a spreadsheet or CRM, you can potentially automate that entire pipeline. Prompt → data pull → deck generation → share link in Slack.
That’s not hypothetical — it’s achievable with current tooling, making it one of the clearest AI use cases delivering real revenue growth for agencies and internal teams.
For individual users, this probably doesn’t matter much. For teams and agencies producing high volumes of structured content, it’s a serious capability that most competitors don’t have.
How It Compares to the Alternatives
I’ve tried Beautiful.ai, Canva’s AI presentation mode, and Plus AI for Google Slides.
- Beautiful.ai has arguably better templates and smoother animations. But its AI generation is shallower — it applies AI to pre-designed templates rather than generating from scratch. The output looks polished faster but has less depth.
- Canva is the better choice if you’re already in the Canva ecosystem and need design flexibility. Its AI presentation features are still relatively basic compared to Gamma’s, but the customisation headroom is much larger. And Canva exports clean, editable files.
- Plus AI (Google Slides add-on) is the right pick if your workflow is permanently anchored to Google Slides. The AI quality is competitive, and the output is natively editable in Google Slides with no export degradation.
The honest answer: Gamma wins on generation speed and web-native presentation experience. Canva wins on design flexibility. Plus AI wins on Google Workspace compatibility. Beautiful.ai wins on polished aesthetics. Pick the tool that matches your actual delivery format.
The Verdict — With a Caveat
Gamma is a genuinely good tool. I say that having used it for three months across a range of real work — not just the cherry-picked demos on their marketing page.
The generation is fast, the output is consistently solid, and the Gamma Agent has made the editing workflow meaningfully better since 3.0. For presentations that live as web links, it’s the best AI tool I’ve used.
The caveats are real though. The PPTX export problem is not minor — it’s a core limitation that won’t disappear any time soon. The credit system requires attention, particularly on Plus where you need to track monthly usage.
And the Trustpilot rating tells you something about how the company handles refund requests, which matters if you’re buying an annual subscription.
Start with the free plan. You’ll get enough credits to build 10+ real presentations and properly evaluate whether the tool fits your workflow.
If it does, Plus at $8–10/month is a reasonable commitment. If you’re finding yourself regenerating sections repeatedly or running the Agent constantly, Pro’s unlimited generation will pay for itself quickly.
The 400 free credits won’t expire. Take your time.
