SlidesAI vs Gamma
Someone typing this is usually deciding between staying inside Google Slides with a cheap add-on or leaving Slides entirely for a standalone AI deck generator with real design range.
The difference that matters
SlidesAI is a Google Workspace add-on, it never leaves Google Slides, it just takes pasted text and slots it into a theme with automatic slide breaks. Gamma is a separate app that generates a whole deck, doc, or webpage from a prompt in about a minute, and can restyle the entire thing with one click. SlidesAI's free tier caps you at 12 AI presentations a year; Gamma's free tier gives 400 one-time AI credits that never refresh, a permanent watermark, and a 10-card limit per prompt.
Side by side
| SlidesAI | Gamma | |
|---|---|---|
| Free tier | Yes: 12 AI-generated presentations per year, 1,000-character input per presentation, 120 AI credits/year | 400 one-time AI credits that do not refresh (top-ups via referrals only, capped around 2,000 lifetime); Made with Gamma watermark stays on every shared or exported deck; capped at 10 cards per prompt |
| Entry paid plan | $10/mo billed monthly, or $120/yr ($8.33/mo effective) | Plus plan, reported between $10 and $12/mo billed monthly (roughly $8 to $9/mo billed annually) depending on source; unlocks 1,000 refreshing monthly credits, removes the watermark, and doubles the card limit to 20 per prompt |
| Bills in | not stated | credits consumed per AI action, with per-seat billing only on the separate Team and Business tiers, ladder runs up to Ultra at roughly $90/mo (individual) and Business at $40/seat/mo (10-seat minimum) |
Choose SlidesAI if
You already build decks inside Google Slides, you just want an AI first draft from pasted notes or an article, and you do not want to add another app to your workflow.
Choose Gamma if
You want an actually well-designed deck (or the same content exported as a doc or webpage) from a rough outline, and you are fine working outside Google Slides to get it.
Our verdict
SlidesAI if your whole workflow already lives in Google Slides and you just want text converted into a passable first draft on the cheap. Gamma if you want the AI to also handle the design.
What to watch out for
SlidesAI's Pro price is confirmed by a direct fetch: $10/mo billed monthly or $120/yr. Its free-tier input limit is confirmed at 1,000 characters per presentation (a lower figure than an earlier 2,500-character read, corrected by a fresh fetch). Gamma's Plus price has no single confirmed figure since gamma.app/pricing is client-side rendered and blocks direct fetches, third-party trackers split between $10 and $12/mo billed monthly.
Compare against the rest
Both of these sit in the full Presentations directory, which covers 5 tools.
SearchAll.ai does not sell any of these tools and is not affiliated with either tool. Some outbound links are affiliate links, marked sponsored. Affiliate status never affects our verdict or the figures above.