AI YouTube summarizers compared

Signal Extractor vs ChatGPT

ChatGPT is a general-purpose assistant. It can't watch or listen to a video, so summarizing one means fetching the transcript and pasting it in yourself.

Signal Extractor vs Gemini

Gemini takes a YouTube link directly and summarizes it free. It needs a Google account, works from the caption track, and answers in chat prose.

Signal Extractor vs Claude

Claude can't open a YouTube link. It summarizes video beautifully once the transcript is in the chat — getting it there is the work.

Signal Extractor vs Perplexity

Perplexity can summarize a video in YouTube Focus mode, but it caps the transcript it reads — so long videos come back summarized from the first stretch.

Signal Extractor vs Ask YouTube

Ask YouTube is YouTube's own AI search. It answers questions across the whole catalogue rather than summarizing the one video in front of you.

Signal Extractor vs NotebookLM

NotebookLM is Google's research notebook. It reads YouTube captions as one source among many, and it's built for studying a whole topic rather than skimming one video.

Signal Extractor vs Eightify

Eightify is a browser extension that turns a YouTube video into eight key ideas, with unlimited use behind a subscription.

Signal Extractor vs Monica

Monica is an all-in-one AI assistant with a YouTube summarizer inside it. New accounts get two free summaries, then it's a subscription.

Signal Extractor vs Sider

Sider is a browser sidebar assistant that does timestamped YouTube summaries, metered against a daily credit balance that doesn't roll over.

Signal Extractor vs Glarity

Glarity is a free, ad-free extension that summarizes YouTube and translates the web. Free summaries are capped at roughly thirty minutes of video.

Signal Extractor vs NoteGPT

NoteGPT is a study tool that turns videos, PDFs and slides into summaries, mind maps and flashcards, on a monthly quota system.

Signal Extractor vs Mindgrasp

Mindgrasp turns lectures, PDFs and videos into notes, flashcards and quizzes. The trials run three days and ask for a card.

Signal Extractor vs Recall

Recall turns videos, podcasts and articles into a searchable personal knowledge base. The free plan covers ten AI summaries a month.

Signal Extractor vs HARPA AI

HARPA is a browser automation platform with a YouTube summary command. The free demo is 100 command runs in total, then it's priced in Megatokens.

summarize.tech is the original paste-a-link YouTube summarizer: no login, a wall of running text, and a daily rate limit before a $10/month plan.

Signal Extractor vs Glasp

Glasp's "YouTube Summary with ChatGPT & Claude" is a browser extension that drops a transcript and summary panel onto the YouTube page, capped at three summaries a day on the free plan.