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Gamma vs SlideAI

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Entry price
Gamma from $9/mo, SlideAI from $1.99 once — different billing units, so no direct winner
Free plan
Both have one
Public API
Gamma has one; not confirmed by us for SlideAI
Higher Trust score
Gamma — 90 vs 67 for SlideAI
Best fit
Gamma: Anyone who needs a presentable deck out of rough notes in minutes · SlideAI: Someone who needs a rough deck outline fast, then wants to polish it in PowerPoint

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

GammaPrompts become decks, docs and sites you can publishSlideAITurns a topic or outline into an editable PowerPoint-style slide draft

Side by side

FactGammaSlideAI
CategoryPresentation & Slide GeneratorsPresentation & Slide Generators
Pricing modelFreemiumFreemium
Starts at$9/mo$1.99 once
Public APIYesNot confirmed
Trust score90 / 10067 / 100
PlatformsWeb, APIWeb
CompanyGamma Tech, Inc.—
Launched2020—
Last verifiedOct 23, 2026Oct 15, 2026

What our research says

Gamma

The tool that genuinely displaced PowerPoint for a lot of people, and it is profitable enough not to need your money - but credits, not seats, decide how much a plan is actually worth.

Pros

  • Layout and image choice happen without picking a template first
  • One document publishes as a deck, a doc or a live web page
  • Plus at $9 per seat per month already removes the Gamma badge
  • Profitable at over $100M ARR, so the vendor is not a runway risk

Cons

  • Credit accounting is opaque - a premium image can cost up to 125 credits
  • API keys are locked to Pro and above
  • The free plan's 400 signup credits do not go far on image-rich decks
  • Export fidelity to PowerPoint degrades on complex layouts

SlideAI

SlideAI is useful for getting past a blank slide deck fast, since it produces an editable draft rather than trying to be a full presentation editor, but there is no way to know who runs it or how long it has existed. Credit pricing is cheap for occasional use, and there is no subscription trap, but that also means no persistent brand or account features beyond generating drafts.

Pros

  • Produces an editable draft rather than a locked-down format
  • Cheap one-time credit packs starting under $2
  • Free daily credits before any payment is needed
  • No subscription commitment required

Cons

  • No visible company name, team, or location
  • No API for automating deck generation
  • Output is a draft only, with no design polish or animation

Which one fits

Choose Gamma if you need

  • Anyone who needs a presentable deck out of rough notes in minutes
  • Teams publishing one-page sites and documents without a website tool
  • Users who want AI layout but expect to keep editing afterwards

Choose SlideAI if you need

  • Someone who needs a rough deck outline fast, then wants to polish it in PowerPoint
  • Occasional users who don't want a recurring subscription

Gamma vs SlideAI: the questions people ask

Is Gamma cheaper than SlideAI?

They charge in different units, so there is no like-for-like answer: Gamma starts at $9/mo, SlideAI at $1.99 once. Entry price is the lowest paid plan as we last verified it.

Does Gamma or SlideAI have a free tier?

Both: Gamma has a free tier, and SlideAI has a free tier.

Which has a public API, Gamma or SlideAI?

Gamma ships a public API, as of our last verification. A public API for SlideAI is not confirmed by us — check its developer docs before you plan an integration.

More comparisons

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