Summarize any YouTube video, web page, or PDF. Chat with the content in seconds.

ChatGPT Box is the Chrome extension built for speed: one click to pull transcripts, generate concise highlights, and ask follow‑up questions using your favorite models—GPT‑5, Claude 4.5, or Gemini 2.5.

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Works with YouTube, any website, PDFs Streams responses • 40+ languages Manifest V3 • Privacy‑first

Why people search for “YouTube summary Chrome extension” and stay for the chat.

Instant video takeaways

Fetch transcripts, generate crisp bullet points, and timestamped highlights before you invest 30 minutes watching.

Chat that keeps context

Ask follow‑up questions about the current page or video; the thread remembers what you’re reading.

Model agility

Switch between GPT‑5, Claude 4.5/4.1, or Gemini 2.5 on the fly. Bring your own API key; no proxy lock‑in.

Works everywhere

Context menu and toolbar actions for any tab, selection, or PDF. Multi‑language summaries ready for global teams.

How it works

1Click the extension or right‑click → “Summarize”.

2We pull transcript/text, trim noise, and stream the summary.

3Ask follow‑ups (“explain like I’m 15”, “give 5 bullet takeaways”) without losing context.

4Switch models per task: depth with GPT‑5 Pro, speed with Gemini 2.5 Flash, reasoning with Claude 4.5.

Common questions

Do I need my own API key?: No!.
Does it work on YouTube and regular sites?: Yes—YouTube transcripts, any web page, PDFs, and selected text.
Is it private?: We only send text you choose to your selected provider. No data reselling, no hidden proxies.
Supported languages?: 40+ output languages. Choose tone and length in settings.

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