Skills bilibili-ai-subtitle

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 customized.

install

source · Clone the upstream repo

git clone https://github.com/openclaw/skills

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/openclaw/skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/54lynnn/bilibili-ai-subtitle" ~/.claude/skills/clawdbot-skills-bilibili-ai-subtitle && rm -rf "$T"

manifest: skills/54lynnn/bilibili-ai-subtitle/SKILL.md

source content

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

Browser Cookie (Recommended)

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).