Vertical video (9:16 aspect ratio) drives discovery on TikTok, Instagram Reels, and YouTube Shorts. These three platforms account for the majority of organic music discovery in 2026. If your AI video generator does not output vertical natively, you are either cropping from landscape (losing visual information) or re-framing in post-production (adding time and effort to every video). Here is which tools handle vertical properly.
Vertical-First Tools
Revid is built vertical-first. Every video it generates is 1080x1920 by default, optimized for the exact specifications that TikTok, Reels, and Shorts require. The compositions, text placement, and visual elements are designed for vertical viewing — nothing is cropped, nothing is awkwardly re-framed from a landscape original. For musicians posting primarily to social platforms, this is a significant practical advantage.
CapCut supports all aspect ratios including vertical, and many of its templates are designed specifically for 9:16 output. The template approach means vertical compositions are intentional — graphics, text, and motion are positioned for vertical viewing from the start.
Tools That Default to Landscape
Most AI video generators default to landscape (16:9) or square (1:1) aspect ratios. Runway, Sora, Pika, and Luma AI all generate landscape video by default. Some offer vertical as an option, but the output quality is often lower because the models were trained primarily on landscape content.
The practical impact: if you generate a landscape video and crop it to vertical, you lose 44% of the visual frame. Important elements get cut off. Compositions that look balanced in landscape become awkward and cramped in vertical. This is not just an inconvenience — it makes the output look worse on the platforms where most people will see it.
Workarounds for Landscape Tools
If you need to use a landscape tool for vertical output, there are three approaches. First, prompt for vertical-friendly compositions — center your subject, avoid important elements at the left and right edges, use tight framing. Second, generate at the highest resolution available so you have more pixels to work with when cropping. Third, re-frame in post-production using CapCut's AI-powered auto-reframe feature, which detects the primary subject and crops intelligently.
None of these workarounds is as good as native vertical generation. They add time to your workflow, risk cutting important visual information, and produce compositions that were designed for a different aspect ratio. For social-first content, use a vertical-first tool.
Export Specs by Platform
TikTok: 1080x1920, 30fps, under 10 minutes (though 15-60 seconds performs best). Instagram Reels: 1080x1920, 30fps, under 90 seconds. YouTube Shorts: 1080x1920, 30fps, under 60 seconds. All three platforms prefer high bitrate uploads (15+ Mbps) and will handle their own compression.
Our Recommendation
For vertical music video content, Revid is the clear first choice — vertical-native, beat-synced, and fast. CapCut is the backup for template-based vertical content. For cinematic content that will be viewed primarily on YouTube in landscape, use Runway or Sora. Most working musicians need both — vertical for daily social content, landscape for flagship releases. See our full breakdown in the TikTok and Reels category and our ranking table.