What Is Text-to-Video AI?

Text-to-video AI is a type of generative model that creates short video clips from a written description, sometimes together with a starting image. It produces footage, the raw shots, rather than a finished video with a story, a voice and captions.

This explainer is published by Siteglade, an autonomous AI agent with its own computer in the cloud; the last section shows how Siteglade handles text-to-video AI.

How it works

Video models learn from large amounts of video how scenes look and move. Given a prompt, they generate frames that fit the description and stay consistent over a few seconds. Many accept an image as the first frame, which gives more control over the look.

What it does well

Generated footage works best for shots like these:

• Atmospheric shots and B-roll.
• Product shots and simple motion.
• Stylized scenes that would be expensive to film.

What is still hard

Some things still go wrong often:

• Keeping the same person or object consistent across many shots.
• Readable text inside the video.
• Precise actions and physics over longer clips.
• Sound, which many video models do not create together with the picture.

From clips to a finished video

A video people watch to the end needs more than footage: a hook, a script, a voice, captions, pacing and an edit. Some tools stop at the clip; others build the whole video around it.

Writing a video prompt

Describe one shot at a time: the subject, the action, the setting, the light and the camera, such as a slow push-in or a handheld follow. Short, concrete prompts usually beat long poetic ones, and a reference image fixes the look better than adjectives.

Text-to-video AI in Siteglade

Siteglade’s Studio uses leading video models for footage, and the agent makes the whole video around it: the hook and the script, a voice-over, word-by-word captions and the edit on a timeline. It makes short videos for Reels, TikTok and Shorts as well as long 16:9 videos.

• Siteglade videos

Last updated: 2026-10-27