How to Choose the Best Aspect Ratio for AI Videos

Create an Avatar Video Using an AI Video Generator. Getting your video made will require a few elements. Creating your aspect ratio is one of the first things you will need to decide when making your video. It will tell you how big your video is and what its general presentation will be on your phone, computer, television, or social media platform.

So, 9:16 or 16:9 which is better? These are the two most common aspect ratios, but each suits specific uses. Decide on your goal from the beginning so you can choose the right aspect ratio for your platform, ensuring there is room for all important details.

What Is an Aspect Ratio?

Aspect ratio is the ratio of the width of a video to its height. Aspect ratio is expressed as a relation of two numbers separated by a colon.

For example, 16:9 means the video is wider than it is tall. This shape is common for YouTube videos, online lessons, and content made for computer or television screens. A 9:16 video is taller than it is wide and is designed for viewing on a phone held upright.

Understanding 9:16 Vertical Videos

A 9:16 video takes up an entire phone screen when you’re holding your phone vertically. This format has become very popular for TikTok, Instagram Reels, YouTube Shorts, and other short-form social posts.

Vertical videos are perfect for delivering top tips, showcasing a product, sharing a quick story, or if your content has one central focus. A fitness trainer could demonstrate an exercise, a small business could demonstrate a product, or a travel creator could share a shot of an attraction.

This layout is ideal when one person or thing is the focus of your shot. You can view your subject without rotating your phone. If you want to make a vertical video AI prompt, you should indicate your subject and what they’re doing, what’s behind them, what the camera is doing, and request that the subject remains within the frame.

Understanding 16:9 Horizontal Videos

A wide 16:9 frame can be used for wide-angle videos such as tutorials, standard YouTube videos, presentations, interviews, online courses and videos for websites.

For 16:9 AI video, outline the larger environment when explaining what you want to see. State where you want your subject and what surrounds them. Say if you want a chef in one area of the shot and the kitchen counter and ingredients close to the camera.

9:16 vs. 16:9: Which One Should You Choose?

Decide on the correct ratio to use based on the video platform and what viewers should be able to observe.

Select 9:16 if:

• You are creating TikTok videos, Instagram Reels, or YouTube Shorts.

• You want to focus on one person, product, or action.

• You are making a quick tip, short story, or vertical advertisement.

• Your audience will mostly watch on phones held upright.

Select 16:9 if:

• You are making a standard YouTube video or longer tutorial.

• You need to show a wide location or several people together.

• Your video will appear in a presentation, course, or website.

• You want room for a presenter and supporting visuals in one frame.

A vertical video brings a mobile tip closer to home. A horizontal video extends a lesson or a trip into space. No one aspect ratio is best in every project, and the best aspect ratio is the one that carries your story and works on the platform it will be published to.

Match the Ratio to the Platform

Decide where the final video will be posted. This is an essential consideration before creating your AI video generator. Consider where the video will be shared. Deciding on your target audience can be straightforward: it can determine the ratio, the framing, and the prompt.

For Shorts, TikTok, and Reels, begin with 9:16. For other long videos like YouTube, a website explanation or a presentation, think about 16:9.

Plan the Frame Before Writing Your Prompt

Choose the subject, the action and the viewing location of the video before creating a video.

Now explain the shot in the simplest language possible. For a vertical shot, you could say: “Create a 9:16 vertical video of a baker putting icing on a cake with the baker and the cake in the middle of the shot.” For a horizontal shot, you could say: “Create a 16:9 horizontal video of a baker in a well-lit kitchen with the counter and kitchen around her.”

Mention also the camera angle, lights, and atmosphere. Be sure that your prompt is relevant to the story.

Keep the Main Subject in View

Aspect ratio determines how much of a scene appears on screen. A single person standing in the centre can fit well in a vertical frame, while a group may require a wider frame. Consider movement as well. If someone walks across the scene, ensure there is enough space for them to move without exiting the frame too soon.

For vertical videos, compose your scene from top to bottom and keep the main subject clear. For horizontal videos, use the extra space to show the setting or other useful details.

Can You Use Both Ratios for One Idea?

This is a proven way: Different formats. You can have both a vertical and a horizontal version of the same idea adapted for each platform. Maintain the core idea, subject and style, but change the framing.

For instance, a coffee shop can shoot a 9:16 version of a barista creating a drink for Reels and a 16:9 version of the shop for the website. Review each version to ensure that the subject and action are framed.

Create Different AI Video Ratios With Faceless Brain

Selecting an aspect ratio is one of the aspect and size decisions you need to make when planning your content. Things become more manageable when your tools for AI creation are consolidated in one location. Faceless Brain is a digital space where creators can leverage AI tools for video and other content production requirements.

Speaking of Faceless Brain, you will now have the option to create horizontal or vertical videos by choosing the aspect ratio 9:16 or 16:9 and then selecting the aspect ratio when you create videos. This will allow you to generate other frame sizes, like vertical for Instagram Stories and wide videos for YouTube.

Begin with a basic prompt, select the format that achieves your desired outcome, and develop from there. AI video tools offered on the platform to discover a workflow that works best for your task. If you're creating a short social video clip, begin with a vertical frame. If you‘re creating a tutorial video or a wider scene, go for a horizontal frame.

A Simple Checklist Before You Generate

Make sure to check off all of the boxes below before creating your next AI video:

• Choose the platform where the video will be published.

• Pick 9:16 for vertical short-form posts or 16:9 for wide videos.

• Decide what the viewer should notice first.

• Describe the subject, action, setting, and camera view in your prompt.

• Keep faces, products, and important text easy to see.

• Check that the framing suits the screen where people will watch.

• Create a separate version when another platform needs a different composition.

• Watch the finished clip and confirm that the action stays inside the frame.

Final Thoughts

AI video generator can instantly turn your ideas, images, and even text prompts into a video. Aspect ratio is one of the first factors you should think about before creating your video. It specifies the width and height of a video, and ultimately its output and experience on a phone, computer, TV, or social media feed.

9:16 vs. 16:9 are the two most common aspect ratios, but they’re best suited for different goals. Know what you want from the beginning so you can prepare your video for the platform you want to upload it to, and don’t forget to leave room for the important details!