---
title: "AI B-Roll"
canonical: "https://blitzreels.com/glossary/ai-b-roll"
---

# AI B-Roll

URL: https://blitzreels.com/glossary/ai-b-roll
Markdown URL: https://blitzreels.com/glossary/ai-b-roll.md
Category: AI Video Generation

## Definition

AI B-roll is supplementary video footage generated by artificial intelligence to visually illustrate narration, replacing the need for traditional stock footage or filming.

## Extended Definition

B-roll is secondary footage that plays over narration to illustrate what the speaker is discussing. Traditionally, B-roll was filmed or sourced from stock libraries. AI B-roll uses text-to-video or image-to-video models to generate custom footage from scene descriptions. This gives creators exact visual matches for their narration rather than settling for approximate stock footage. AI B-roll is particularly powerful for faceless videos, educational content, and marketing videos where custom visuals would otherwise require expensive production. BlitzReels automatically generates AI B-roll from script segments, matching each scene's text with contextually relevant AI-generated video clips.

## Related Terms

- b-roll
- ai-video-generation
- faceless-video
- text-to-video
- stock-footage

## Search Terms

- AI B-roll
- AI generated B-roll
- automatic B-roll
- AI stock footage
- B-roll generator