In Canva, a carousel starts with template browsing or a blank 1080×1920 canvas. You pick fonts, drag elements, find or generate images, then duplicate and modify the slide four more times — keeping a consistent look manually. For a polished 5-slide carousel, expect 10–30 minutes per post.
In Slideshows.Studio, a carousel starts with a URL. Claude reads the page, picks the most shareable angle, and writes a 5-slide plan. Flux Pro Ultra renders slide 1 to lock the character. Nano Banana edit mode then renders slides 2–5 using slide 1 as visual reference, so the same person, outfit, and scene reappear coherently. Caption and hashtags are returned at the same time. Total: ~60 seconds.
Canva wins on creative control. Slideshows.Studio wins on speed and consistency. If you post daily, the speed difference compounds — 5 posts a week is 2.5 hours saved every week.