AI-powered content creation is a direct lever for e-commerce marketing. Which model produces the best results for your product pages and visuals? # Gemini Canvas vs GPT-5: Which Creates the Best Presentation?
Introduction
Preparing a clear and aesthetic presentation can quickly become time-consuming. With Canvas, its new feature integrated into Gemini, Google promises to transform simple text or a URL into a complete and visual presentation.
I wanted to test this promise against GPT-5, on a concrete case:
Create a Google Slides presentation from my article:👉 Developer Skills Evolution in 2025
The exact prompt I used in both AIs:
🧠 Prompt:“I want to create a Google Slides presentation on https://nicolas-dabene.fr/articles/2025/11/10/evolution-competences-developpeurs/”
The results are very different… and revealing.
🎨 Google Gemini’s Canvas: Fluid and Automated Creation
Gemini introduces a true integrated visual creation studio. Thanks to Canvas, any user can generate a slide deck from text, a link, or even uploaded images.
🔧 How It Works
- Open Gemini → Tools → Canvas section
- Paste your topic, text, or URL
- Click on Create presentation
- Gemini automatically generates:
- A structured plan (introduction, content, conclusion)
- Coherent themes with colors and typography
- AI-generated images
- And even LaTeX if needed for equations or tables
💡 Canvas allows you to edit content directly, add slides, then export to Google Slides with one click.
🎯 What I Got With My Prompt
In a few seconds, Gemini generated:
- Coherent and well-hierarchized slides
- A clean visual identity, based on Google Slides tones
- Relevant visuals evoking the future of development and AI
- A logical plan:
- Introduction to context
- Skills mutation
- New market expectations
- AI’s role in transformation
- Conclusion and perspectives
The result is clean, readable and immediately usable.
🤖 GPT-5: A Disappointing and Unusable Result
For its part, GPT-5 produced a result significantly below Gemini Canvas. Without a very elaborate and structured prompt upfront, the generated presentation is not directly usable.
Main Weaknesses
- Unusable raw output: requires major rework to be presentable
- No native visual generation (requires a plugin for images)
- Incoherent structure without a very precise and detailed prompt
- Absent or haphazard layout depending on generations
- Often requires multiple iterations to get something correct
What GPT-5 Can Do (With Much Effort)
- Possible integration with PowerPoint or Google Slides via API (but complex setup)
- Interesting narrative potential if and only if the prompt is very well crafted
- Can generate dense content, but often too verbose for slides
⚠️ Verdict: For presentation generation, GPT-5 is not up to par with Gemini Canvas. The time saved by automation is lost in rework and adjustments.
⚔️ The Synthetic Comparison
Criterion Gemini Canvas GPT-5 Ease of use ⭐⭐⭐⭐⭐ ⭐ Visual style Clean, professional Non-existent without rework Content richness Medium but usable Too dense, poorly structured Plan creativity Basic but effective Incoherent without elaborate prompt Slides integration Native (1 click) Via API (complex) LaTeX / PDF support Yes Partial Immediate result ✅ Directly usable ❌ Requires major rework Target audience All users Experts willing to iterate extensively ---
📚 Some Inspiring Use Cases
Gemini Canvas is not limited to presentations:
- 🎓 Students: transform revision sheets into interactive quizzes
- 💼 Professionals: create action plans from meeting notes
- 🧑💻 Developers: visualize code, logs or AI results
And thanks to integrated LaTeX rendering, scientists can now prepare complex equations without additional software.
📂 Test Results
I put the two presentations side by side — Gemini vs GPT-5 — so you can judge for yourself:
➡️ Download the presentations:
👉 Each presentation uses the same base, but tone, layout and content density differ radically.
Conclusion
Between Gemini Canvas and GPT-5, the verdict is clear: Gemini Canvas wins by a wide margin for presentation creation.
- Gemini Canvas delivers an immediately usable result, with visual coherence, clear structure, and native integration with Google Slides. It’s the ideal tool for anyone looking to save time.
- GPT-5, on the other hand, disappoints on this task: without a very elaborate prompt upfront, the result requires significant rework that cancels out the expected productivity gain. It is not suited for visual presentation generation.
My recommendation: for creating presentations quickly and effectively, Gemini Canvas is the obvious choice. GPT-5 might occasionally serve as a complement to refine textual content, but certainly not as a primary slide creation tool.
Article published November 14, 2025 by Nicolas Dabène – AI Expert & PrestaShop Developer
