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Gamma vs SlideBuild

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

Cheaper paid plan
Gamma — $9/mo vs $20/mo for SlideBuild
Free plan
Both have one
Public API
Gamma has one; not confirmed by us for SlideBuild
Higher Trust score
Gamma — 90 vs 75 for SlideBuild
Best fit
Gamma: Anyone who needs a presentable deck out of rough notes in minutes · SlideBuild: Google Workspace users who want a first-draft deck inside Slides itself

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 publishSlideBuildGoogle Slides add-on that builds a full deck from a short description of what you want.

Side by side

FactGammaSlideBuild
CategoryPresentation & Slide GeneratorsPresentation & Slide Generators
Pricing modelFreemiumFreemium
Starts at$9/mo$20/mo
Public APIYesNot confirmed
Trust score90 / 10075 / 100
PlatformsWeb, APIWeb
CompanyGamma Tech, Inc.Genius Addons
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

SlideBuild

A convenient way to get a first-draft deck without leaving Google Slides, since the output is a normal editable file rather than a locked export. Its usefulness on the free tier is capped by monthly slide and image quotas.

Pros

  • Generates directly inside a normal, editable Google Slides file
  • Includes AI-generated images as part of the deck, not just text layouts
  • Over a million color-scheme combinations for customization
  • Free usage tier available before subscribing

Cons

  • Limited to a fixed number of slides and AI images per month on paid plans
  • Only works within Google Slides, not PowerPoint or Keynote
  • Higher usage requires a per-user Team plan or custom Enterprise pricing

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 SlideBuild if you need

  • Google Workspace users who want a first-draft deck inside Slides itself
  • Teams standardized on Google Slides rather than PowerPoint
  • Recurring presentation needs that fit within a monthly slide quota

Gamma vs SlideBuild: the questions people ask

Is Gamma cheaper than SlideBuild?

On published entry prices, Gamma starts lower — $9/mo against $20/mo for SlideBuild. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Gamma or SlideBuild have a free tier?

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

Which has a public API, Gamma or SlideBuild?

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

More comparisons

All SlideBuild alternatives →Browse all Presentation & Slide Generators →