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Gamma vs SlidesOrator

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 SlidesOrator
Free plan
Both have one
Public API
Gamma has one; not confirmed by us for SlidesOrator
Higher Trust score
Gamma — 90 vs 83 for SlidesOrator
Best fit
Gamma: Anyone who needs a presentable deck out of rough notes in minutes · SlidesOrator: Corporate trainers who want a narrated, always-available version of a deck

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 publishSlidesOratorTurns uploaded PDF slides into an AI-avatar-narrated presentation with live audience Q&A.

Side by side

FactGammaSlidesOrator
CategoryPresentation & Slide GeneratorsPresentation & Slide Generators
Pricing modelFreemiumFreemium
Starts at$9/mo$20/mo
Public APIYesNot confirmed
Trust score90 / 10083 / 100
PlatformsWeb, APIWeb
CompanyGamma Tech, Inc.AVATARAI UNITED KINGDOM LTD
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

SlidesOrator

SlidesOrator is a niche tool for turning a static slide deck into something closer to a hosted webinar, complete with an avatar presenter and audience Q&A, aimed at training and demo use cases rather than everyday deck-making. The idea is solid but the pricing page itself was broken at the time of this review, which is a bad sign for a paid product.

Pros

  • Adds real-time Q&A and mini-quizzes on top of a static PDF, not just narration
  • Free tier is usable for short decks (3 documents, 15 pages each)
  • Registered UK company (AVATARAI UNITED KINGDOM LTD) behind the product

Cons

  • Pricing page displayed $0.0 for both paid tiers instead of real numbers during this review
  • WebGL2 dependency likely limits playback on older devices or restricted browsers

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 SlidesOrator if you need

  • Corporate trainers who want a narrated, always-available version of a deck
  • Product teams recording repeatable demo presentations

Gamma vs SlidesOrator: the questions people ask

Is Gamma cheaper than SlidesOrator?

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

Does Gamma or SlidesOrator have a free tier?

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

Which has a public API, Gamma or SlidesOrator?

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

More comparisons

All SlidesOrator alternatives →Browse all Presentation & Slide Generators →