With us, you can select between 3 aspect ratios to generate your videos: 9:16 (Vertical), 16:9 (Horizontal), and 1:1 (Square).

Note: Gemini Omni Flash, all Veo 3.1 and all LTX 2.5 AI models offer only 2 aspect ratios: 9:16 (Vertical) and 16:9 (Horizontal).

Note: Depending on the AI model you choose, you can generate videos in resolutions from 480p to 4K and lengths from 1 to 30 seconds

The ideal aspect ratio depends on where you plan to publish your video.

Note. The specifications listed below, including minimum and maximum dimensions and video duration, are based on the requirements of each social media platform, not on the actual video creation capabilities of our service.

For example, TikTok In-Feed posts can accommodate videos up to 60 minutes long. However, ActiveCast allows you to generate videos up to 30 seconds long.

Please also note that the available video specifications, including duration, resolution, and aspect ratio, depend on the AI model you select. Therefore, these specifications may vary from one model to another.

The primary home for vertical video, where 9:16 is the default format.

Use Reels and Stories to share vertical clips that fill mobile screens. Instagram scales video quality to preserve bandwidth and will compress files that exceed its max specs.

Share vertical content directly to Facebook Reels or your Facebook Story.

Share vertical content directly to Spotlight or your Public Story

The native home of widescreen video, accepting high resolutions and long runtimes.

Handles widescreen video cleanly in the main feed, but will letterbox your video if viewed in vertical mode.

You can post horizontal clips into the standard Instagram feed, but the app fits the player within standard mobile screen widths, which leaves white space above and below your video

TikTok supports horizontal (16:9) videos. Users can watch them in landscape mode for a larger viewing experience.

16:9 videos are ideal for corporate presentations, webinars, and promotional content.

While full-screen Reels require 9:16, standard feed posts and carousel posts fully support square video.

Facebook supports square (1:1) videos in the main feed, where they display well on both desktop and mobile devices.

YouTube supports square (1:1) videos. On desktop, they may appear with black bars to fit the widescreen player, while on mobile they display more naturally.

TikTok supports square (1:1) videos, although 9:16 is the recommended format for the best viewing experience.

Supports square (1:1) videos, which display well in the main feed on both desktop and mobile devices.

Supports square (1:1) videos, which display well in users' timelines on both desktop and mobile devices.

If you have any questions, feel free to contact us via in-app chat or email at [email protected].

We look forward to seeing your brand thrive with ActiveCast videos!