Lexonia Video Lens — Transcribe & Translate Any Video (Douyin, Bilibili, TikTok, YouTube, Vimeo)

Get the words out of any video — including the ones your AI can't reach. Paste a video URL and get back clean, structured, LLM-ready data: the spoken transcript, an AI summary, and (optionally) a full translation, in the languages you choose — language auto-detected.

🌐 Languages: Chinese · English ·

Typically, your LLM summarizes and translates text brilliantly — but it can't reach into China's Douyin (抖音) & Bilibili (B站), and it can't listen to a video's audio. This Actor does: it fetches and transcribes the speech your AI can't get on its own, then hands it back ready to reason over.

• 🌏 Reaches China video. Douyin & Bilibili speech → an English (or any-language) summary + translation — the raw material for research your assistant otherwise can't obtain.
• 🎙️ Transcribes audio, not just captions. Real AI speech-to-text, so it works even when a video has no captions.
• 🧠 Runs on YOUR AI, anywhere. OpenAI, Claude, or China's Qwen / DeepSeek — usable inside mainland China, where OpenAI & Claude are blocked. No lock-in.
• 🔌 Agent- & workflow-native. Call it from Claude / ChatGPT (Apify MCP), n8n, or Make — or drop the JSON straight into any LLM.
• 🈶 Auto-detects language with an honest confidence score.

Supported platforms

Platform	How it's transcribed
Douyin (抖音) — China's "TikTok"	audio speech-to-text
Bilibili (B站) — China's "YouTube"	audio speech-to-text
TikTok	audio speech-to-text
YouTube	native captions
Vimeo	caption track (captioned videos)

The Actor auto-detects the platform from the URL.

Languages — get it in yours

Understand any video in the language you work in, not just English. Summaries in 20+ languages and full transcript translation in 30+ — English, Chinese, German, Japanese, Korean, French, Spanish, Portuguese, Russian, Arabic, Hindi, Indonesian, Vietnamese, Ukrainian, and more. Auto-detect the source; choose one or several output languages.

Need a language you don't see? Email info@lexoniagroup.com with "add another language" in the subject — tell us the language and how you'd use it, and we'll add it.

Whole channels — and a cost preview before you commit

• Paste a whole channel / creator profile in Channel URLs instead of listing every video. The Actor pulls its recent videos automatically — YouTube (channel/@handle), Bilibili (space), and Douyin (user). Choose oldest-first (read a creator from the beginning) or newest-first, and cap how many with Max videos per channel. Each video starts on its own page in the PDF export.
• Preview first. Turn on Estimate only to get the video count, the expected cost you'll pay, and the approximate time — without transcribing anything. Check a channel's cost, then flip it off to run for real.

How to transcribe a Bilibili video into English

Give the Actor a Bilibili URL, set translateLanguages to English (and/or add English to summaryLanguages), and run it. You get the original Chinese transcript plus a full English translation and an English summary — no Mandarin required.

How to get a Douyin (抖音) transcript with an AI summary

Paste a Douyin link and pick your summary languages. The Actor transcribes the speech and returns a summary in each language you chose — ideal for tracking Chinese social-media trends without speaking the language.

How to transcribe a TikTok or YouTube video with AI

Same flow for TikTok, YouTube, and Vimeo: paste the URL, choose your output languages, and get a transcript + AI summary (+ optional full translation and SRT/VTT subtitles).

Features

• Transcription in the video's original language — handles both short clips and long videos.
• AI summaries in 30+ languages — pick any combination (Original + English, Japanese, Chinese, Spanish, Arabic, …).
• Full transcript translation — a complete, faithful translation of the entire transcript (not just a summary) into any language you choose.
• Automatic language detection with a confidence score.
• Subtitles — export timed .srt / .vtt files (YouTube, TikTok, Bilibili).
• Multi-format output — JSON (LLM-ready), CSV, Markdown, and PDF (Chinese/Japanese/Korean render correctly).
• Choice of AI model — OpenAI, Anthropic (Claude), DeepSeek, or Qwen. DeepSeek/Qwen work inside mainland China, where OpenAI and Claude are blocked.
• Premium model quality by default — the strongest model for accurate summaries and translations; switch to Standard for a faster, cheaper run.

Input

Field	Type	Default	Description
videoUrls	array	—	Required. One or more video URLs.
language	select	auto	Auto-detect (recommended). Pick a language only to force a specific YouTube caption track.
includeSummary	boolean	true	Generate an AI summary.
summaryLanguages	array	["original"]	Languages for the summary. original = the video's own language; add targets to translate the summary into.
translateLanguages	array	[]	Languages to translate the full transcript into (premium deliverable).
modelTier	select	standard	standard (fast/economical) or premium (best quality).
summaryProvider	select	openai	openai, anthropic, deepseek, or qwen.
apiKey	string (secret)	—	Optional. Leave blank to use the bundled model; or bring your own key.
summaryStyle	select	bullets	bullets, paragraph, or detailed.
outputFormats	array	["json","csv"]	json, csv, markdown, pdf — all free.
subtitleFormats	array	[]	srt and/or vtt timed subtitle files.

Example input

{
  "videoUrls": ["https://www.douyin.com/video/..."],
  "summaryLanguages": ["original", "English"],
  "translateLanguages": ["English"],
  "modelTier": "premium",
  "outputFormats": ["json", "pdf"]
}

Output

Each video produces one structured dataset item:

{
  "url": "https://www.douyin.com/video/...",
  "platform": "douyin",
  "title": "Video title",
  "author": "Creator name",
  "detectedLanguage": "Chinese",
  "detectedLanguageCode": "zh",
  "languageConfidence": 98,
  "languageUncertain": false,
  "transcript": "原始中文字幕...",
  "transcriptWordCount": 1234,
  "transcriptTranslations": { "English": "Full English translation of everything said..." },
  "summaries": { "original": "中文摘要...", "English": "English summary..." },
  "summary": "中文摘要..."
}

Use with Claude or ChatGPT (MCP)

This Actor is available through the Apify MCP server, so AI assistants can call it as a tool — just ask, in plain language, "transcribe and summarize this Douyin video in English."

• Claude / ChatGPT — add a custom connector pointing to https://mcp.apify.com (with your Apify token). The assistant can then run this Actor automatically whenever you need a foreign-language video understood.

Pricing

Pay-per-event — you pay only for what you process: transcription per minute (or a flat per-video rate for caption platforms), AI summary per language, full translation per 1,000 words per language, and optional premium model or subtitles. No subscription. Free JSON/CSV/Markdown/PDF export. Works with the bundled model or your own key (OpenAI, Claude, Qwen, DeepSeek).

Use cases

• China-market research & brand monitoring — read what China is watching on Douyin/Bilibili, in English.
• Cross-border marketing & localization — turn foreign creator content into briefs your team can act on.
• Research & journalism — search and quote foreign-language video at scale.
• AI agents & apps — feed clean, structured transcripts and summaries straight into your LLM pipeline.

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Built by Lexonia Group LLC.