---
title: "AI Captions"
canonical: "https://blitzreels.com/glossary/ai-captions"
---

# AI Captions

URL: https://blitzreels.com/glossary/ai-captions
Markdown URL: https://blitzreels.com/glossary/ai-captions.md
Category: Captions & Subtitles

## Definition

AI captions are automatically generated text overlays synchronized to spoken audio in a video, created using speech recognition AI that transcribes audio and places text with word-level timing.

## Extended Definition

AI captioning uses automatic speech recognition (ASR) to transcribe spoken audio, then generates timed text overlays that appear as each word is spoken. Modern AI caption systems provide word-level timing accuracy, allowing animated caption styles where individual words highlight, bounce, or appear in sequence. This contrasts with traditional SRT subtitles which show full sentences. AI captions have become essential for short-form video because 85% of social media video is watched without sound. Caption styles can include animations, colors, fonts, backgrounds, and effects that match the visual aesthetic of the video. BlitzReels offers 30+ animated caption styles with word-level sync, batch captioning, and platform-optimized export.

## Related Terms

- srt-subtitles
- word-level-sync
- transcription
- caption-styles

## Search Terms

- AI captions
- auto captions
- AI caption generator
- automatic captions
- video captions AI