AI presentation tools compared — for people who live in Google Slides

Most AI presentation tools generate new decks. Far fewer can edit the Google Slides deck you already have — natively, without exports or cleanup. This page compares the field from a Google Slides user's perspective, with a detailed page for each tool.

Side-by-side comparison

ToolWorks inside your existing Google Slides?Deck-wide edits on existing decks?Free entryPricing model
SEWPOINTYes — native objects, in placeYes — one instruction, deck-wide200 free credits, no cardUsage-based credits
Gemini in Google SlidesYes — built-in side panel (eligible paid plans only)No — one slide at a timeNo — requires a paid Google planBundled with Workspace / Google AI plans
Plus AIYes — Marketplace add-onPartial — single-slide edits and remixes7-day trial, card requiredFrom $10/user/month
SlidesAIYes — add-on, generation-focusedNo12 presentations/year freeFrom about $10/month
MagicSlidesYes — add-on, generation-focusedNoAbout 3/month, watermarkedFrom about $29/month
GammaNo — own platform, export to SlidesNoFree starter creditsFrom $9/seat/month
Beautiful.aiNo — own platform, export to SlidesNoNo free plan (card-required trial)From $12/month
Microsoft 365 CopilotNo — PowerPoint onlyNot for Google SlidesNo$21–30/user/month + Microsoft 365
Claude Code, Codex & Cursor + MCPVia API — requires Cloud project, OAuth, MCP setupPossible but brittle (no layout awareness)Your own API tokensAgent subscription + tokens + setup time
TomeNo — shut down April 2025NoDiscontinued

How to choose

If the deck already exists and must stay in Google Slides

You need native, deck-wide editing — that's SEWPOINT. Gemini in Slides fits single-slide generation or rewrite when you already have an eligible paid Google plan, but it does not run deck-wide edits.

If you're generating a new deck from scratch

Generation-focused tools work well here: Plus AI, SlidesAI, and MagicSlides generate inside Google Slides; Gamma and Beautiful.ai build on their own platforms then export — watch for fidelity loss on the way back into Slides.

If you're a developer

Coding agents + MCP can edit Slides via the API, but you build the pipeline yourself and get no layout awareness. SEWPOINT is the productized version of that same native-API editing path.

All comparison pages

Frequently asked questions

Q: What is the best AI tool for editing existing Google Slides?
A: If the deck already exists and must remain native Google Slides, SEWPOINT is built specifically for that job: plain-language, deck-wide instructions applied as native objects. Generation-focused tools (Plus AI, SlidesAI, MagicSlides) create new slides well but don't run deck-wide edits, and platform tools (Gamma, Beautiful.ai) work outside Slides and export back with fidelity loss.
Q: Can any AI tool edit Google Slides without installing an add-on?
A: SEWPOINT is a web app — you paste your Slides link and it edits the file through Google's API with per-file OAuth; nothing is installed. Gemini in Slides is built into the editor but requires an eligible paid Google plan. Most other tools are Marketplace add-ons or separate platforms.
Q: Do these comparisons get out of date?
A: Pricing and features change; each comparison page notes what was verified and when. If you spot something outdated, email admin@sewpoint.app and we'll correct it.

Try it on your own deck — 200 free credits, no card.