Gamma vs SlidesAI: Features, Pricing and Verdict

Gamma vs SlidesAI: Gamma is the standalone deck designer from $12/mo, while SlidesAI builds decks inside Google Slides from $10/mo on annual billing.

By Galactic News Editorial · Published 2026-11-12T04:23:25+00:00 · Updated 2026-11-12T04:23:25+00:00

Gamma vs SlidesAI: Features, Pricing and Verdict

Gamma and SlidesAI both turn text into slide decks. They take different routes to the same result. Gamma is a standalone web app with its own editor. You prompt it, it builds a deck, and you polish it inside Gamma. SlidesAI is an add-on for Google Slides and PowerPoint. You prompt it inside the slide tool you already use, and the deck lands there. This guide compares features, prices, and limits as they stand in November 2026.

The short answer: choose Gamma if you want the best-looking decks with the least effort. Choose SlidesAI if you live in Google Slides or PowerPoint and want decks inside that workflow. Gamma's Plus plan costs $12 per month. SlidesAI's Pro plan costs $10 per month on annual billing.

Gamma vs SlidesAI at a glance

How each tool builds a deck

Gamma starts from a prompt, a document, or an outline. You describe the deck, and Gamma writes the content, picks a theme, and lays out the slides. The editor lets you restyle cards, swap images, and change layouts without leaving the app. Gamma also makes docs, websites, and social images, not just decks. Its paid plans include unlimited AI creations under fair use, with premium features such as the Agent, advanced models, and the API consuming credits.

SlidesAI starts from a topic, notes, a script, or a document. In October 2026 it added SlidesAI Agent, a chat-based builder that asks about your audience and tone before it writes anything. The deck is created inside Google Slides or PowerPoint, so your team edits it in the tool they already know. There is no new editor to learn. SlidesAI also offers AI image generation, translation, and text rewriting inside the deck.

The design difference is real. Gamma decks look designed out of the box. Its themes, layouts, and image models do more of the visual work. SlidesAI decks look like Google Slides decks, because they are Google Slides decks. If your team has a branded template, SlidesAI follows it through Brand Kits. Import your PPTX template, and the AI builds slides inside your approved layouts.

Gamma vs SlidesAI pricing

Gamma charges per seat. Free costs $0 and gives 400 credits at signup. Those credits do not refill, so the free plan works as a trial rather than a permanent tier. Plus costs $12 per seat per month, or $9 per seat per month billed annually at $108 per year. It gives 1,500 credits per month, up to 100 slides per prompt, no Gamma branding, and advanced AI image models. Pro costs $25 per seat per month, or $18 billed annually at $216 per year. It gives 4,000 credits per month, premium image models, custom branding, detailed analytics, advanced sharing, API access, and up to 10 custom domains. Ultra costs $100 per seat per month, or $90 billed annually at $1,080 per year. It gives 20,000 credits per month and the most advanced text, image, and video models. Business costs $40 per seat per month billed annually, with 10,000 credits per seat. Enterprise is custom priced. Annual billing saves up to 28 percent.

One caveat on Gamma credits. Some checks from earlier in 2026 listed Plus at 1,000 credits per month. The most recent checks, from November 1 and November 8, 2026, list 1,500 credits per month. Gamma has changed its credit allowances during the year. Confirm the current figure on the pricing page before you buy.

SlidesAI charges per user. Basic costs $0 and gives 200 AI credits per month, refreshed monthly, the Lite and Balanced AI models, 2,500 characters of input per presentation, and 1 Brand Kit. Pro costs $10 per user per month billed at $120 per year. It gives 30,000 AI credits per year, about 140 presentations, up to 20 slides per deck, the Lite, Balanced, and Advanced models, 50,000 characters of input, PDF and Word upload, 3 Brand Kits, and custom fonts. Premium costs $20.83 per user per month billed at $250 per year. It gives 84,000 AI credits per year, about 400 presentations, 50 or more slides per deck, every AI model including Ultra, 100,000 characters of input, and 6 Brand Kits. Month-to-month billing costs about $12 for Pro and $25 for Premium. Team plans use the same per-seat prices, with credits allocated to each seat. Unused credits do not roll over on any SlidesAI plan.

A 10-slide presentation on the Balanced model costs about 105 credits, plus 2 credits per AI image. That makes SlidesAI Pro's 2,500 monthly credits worth roughly 20 presentations a month. Gamma's credit costs vary by feature, so the two credit systems do not compare directly. Compare the decks you need, not the credit counts.

Which one for which job

Pick Gamma if presentation quality matters most. Pitch decks, client work, and class materials look better from Gamma with less manual fixing. Plus at $9 per month on annual billing is the cheapest way to remove Gamma branding and raise the limit to 100 slides per prompt. Pro at $18 per month on annual billing is the right tier if you need custom branding, analytics, or the API.

Pick SlidesAI if your team works in Google Slides or PowerPoint. The deck lands in the file format your colleagues already edit. Brand Kits keep every deck inside your approved template. Pro at $120 per year is cheaper than Gamma Plus over a year, and the free plan's 200 monthly credits refresh, so it stays useful indefinitely.

Pick Gamma if you create decks from scratch. Pick SlidesAI if you create decks from documents. SlidesAI's document upload and script mode handle long source material well. Gamma's PDF and PPTX import covers the same ground, but its strength is generation, not conversion.

Bottom line: Gamma vs SlidesAI

Gamma wins on design and flexibility. It is a full creative tool with its own editor, better-looking output, an API, and custom domains. Its credit rollover is also friendlier than SlidesAI's use-it-or-lose-it credits.

SlidesAI wins on workflow and price. It lives inside Google Slides and PowerPoint, follows your brand template, and its Pro plan costs $120 per year against Gamma Plus at $108 per year with a monthly-refilling free plan. For teams that already live in Google Workspace, that is the deciding factor.

The verdict is simple. If the deck is the product, buy Gamma. If the deck is a step inside a Google Slides or PowerPoint workflow, buy SlidesAI. Both have real free plans, so try the free tier of each before you pay.