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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. Gamma starts at $8, SlideBuild at $20. Both have a free tier. Only Gamma ships a public API.

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$8 month$20 month
Public APIYesNo
PlatformsWeb, APIWeb
CompanyGammaGenius Addons
Launched2020—
Last verifiedSep 6, 2026Sep 1, 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 $8/user/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

More comparisons

All SlideBuild alternatives →Browse all Presentation & Slide Generators →