Slide Buddy vs Gemini in Google Slides: Which Actually Translates Your Deck?

What Gemini Actually Does in Google Slides

Google added Gemini to its Workspace suite in 2024, and many users assume it can translate presentations the same way Google Translate handles documents. It can't — at least not yet.

When you open the Gemini sidebar in Google Slides and ask it to "translate this deck to Spanish," here's what happens:

1. Gemini reads your slide content and generates translated text in the sidebar chat panel.
2. Your actual slides remain unchanged. The translated text appears only in the Gemini sidebar — it is not written back into your presentation.
3. You must manually copy-paste each translated block from the sidebar into the corresponding text box on each slide.

The screenshot at the top of this article shows this behavior. We asked Gemini to translate a deck, and it responded with a list of translations in the sidebar. The slides themselves were untouched.

Other Gemini Limitations for Translation

• One slide at a time. Gemini processes context in a conversational window. For a 30-slide deck, you'd need to prompt it repeatedly or paste slide content manually.
• No speaker notes. Gemini's Slides integration doesn't have access to the speaker notes panel.
• No formatting awareness. The sidebar output is plain text. If you paste it into a text box, you lose bold, italic, font size, and color.
• Requires Google Workspace. Gemini in Slides is not available on free Google accounts. You need a Business, Enterprise, or Gemini add-on subscription.

What Slide Buddy Does Differently

Slide Buddy is a Google Slides add-on built specifically for presentation translation. The core difference: it writes translations directly into your slides.

1. Translates all slides at once. Select your target language, click Translate, and every text box across every slide is translated in one pass.
2. Preserves formatting. Font size, color, bold, italic, alignment, and text box positioning are maintained. Your design doesn't break.
3. Includes speaker notes. Presenter notes are translated alongside slide content — no separate step needed.
4. Works on free Google accounts. No Workspace subscription required. The free tier translates up to 3 slides per run.
5. 100+ languages. Powered by Google Translate API, with the same language coverage you'd expect.

Watch the 60-second demo video to see it in action — the key thing to notice is that the translated text appears inside the slides, not in a sidebar.

Side-by-Side Comparison

When Gemini Is the Better Choice

Gemini isn't a translation tool — it's a general AI assistant that happens to live inside Google Slides. It's better than Slide Buddy when you need to:

• Summarize slide content — "What are the key points in this deck?"
• Rewrite copy — "Make this slide more concise" or "Rewrite this for a C-suite audience."
• Generate new content — "Create a slide about Q3 revenue trends."
• Translate a single phrase — If you just need one sentence translated, the sidebar is fast enough.

If you need to translate an entire deck — especially one with 10+ slides, speaker notes, and careful formatting — Gemini adds hours of manual copy-paste work that Slide Buddy eliminates.

How to Translate a Google Slides Deck with Slide Buddy

Pro tip: Make a copy of your deck before translating (File → Make a copy) so you keep the original language version.

Frequently Asked Questions