SkillHub

bilibili-ai-subtitle

v2.0.0

Download Bilibili AI-generated subtitles (auto-subtitles) for videos. Use when you need to quickly get subtitles from Bilibili videos that have AI-generated captions. Supports 9 languages: Chinese, English, Japanese, Spanish, Arabic, Portuguese, Korean, German, French. Language priority can be custo...

Sourced from ClawHub, Authored by 54Lynnn

Installation

Please help me install the skill `bilibili-ai-subtitle` from SkillHub official store. npx skills add 54Lynnn/bilibili-ai-subtitle

Bilibili AI Subtitle Downloader v2.0

Download AI-generated subtitles from Bilibili videos quickly.

What This Skill Does

This skill downloads AI-generated subtitles (自动生成的字幕) from Bilibili videos. These are subtitles automatically created by Bilibili's AI system, not manually uploaded by creators.

Key improvements from v1.x: - ✅ Customizable language priority (e.g., prefer English over Chinese) - ✅ Better filename format: Title_Author_Date_Duration_BVid.txt - ✅ Three-part document structure (Info, Summary, Full Text) - ✅ Improved UTF-8 filename handling - ✅ Better WSL Chromium/Windows Edge Cookie support

Supported AI Languages

Bilibili uses ai- prefix for AI-generated subtitles:

Code Language 语言
ai-zh Chinese 中文
ai-en English 英文
ai-ja Japanese 日文
ai-es Spanish 西班牙文
ai-ar Arabic 阿拉伯文
ai-pt Portuguese 葡萄牙文
ai-ko Korean 韩文
ai-de German 德文
ai-fr French 法文

Usage

Basic Usage

./scripts/bilibili_ai_subtitle.sh "https://www.bilibili.com/video/BVxxxxx/"

Specify Language Priority

# Prefer English, fallback to Chinese
./scripts/bilibili_ai_subtitle.sh -l en,zh "BVxxxxx"

# Prefer Japanese
./scripts/bilibili_ai_subtitle.sh --lang ja "BVxxxxx"

# Multiple languages in order of preference
./scripts/bilibili_ai_subtitle.sh -l en,zh,ja,es "BVxxxxx"

Output

File name format: VideoTitle_Author_Date_Duration_BVid.txt

File structure:

第一部分：视频信息
├── 视频标题
├── B站链接
├── 作者
├── 发布时间
├── 视频时长
├── 原视频语言
└── 转录来源

第二部分：视频摘要
└── 自动生成的内容摘要

第三部分：完整原文
└── 完整字幕文本

Setup

For accessing member-only videos, log in to Bilibili in: - WSL Chromium (preferred): chromium-browser & - Windows Edge: Log in normally

The script will automatically detect and use available cookies.

Requirements

  • yt-dlp installed
  • Optional: Browser with Bilibili login (for member-only videos)

Notes

  • AI subtitles are generated automatically by Bilibili's system
  • Accuracy varies (typically 85-95% for clear speech)
  • Not all videos have AI subtitles available
  • Some videos may require membership to access AI subtitles

Comparison with bilibili-transcript

Feature bilibili-ai-subtitle bilibili-transcript
Purpose Download AI subtitles only Full transcription workflow
Speed ⚡ Fast (instant download) Varies (subtitles → Whisper)
Subtitle sources AI only CC → AI → Whisper
Use case Quick subtitle grab Complete transcription
Dependencies yt-dlp only yt-dlp + optional Whisper

Recommendation: Use bilibili-ai-subtitle for quick AI subtitle download, use bilibili-transcript when you need complete transcription (including voice transcription for videos without subtitles).