
Ytsum: Summarize YouTube Videos
91 users
Version: 1.04
Updated: March 16, 2025

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Narrative of the Expedition of an American Squadron to the China Seas and Japan: Performed in the Years 1852, 1853, and 1854, Under the Command of Commodore M.C. Perry, United States Navy, by ...
No subscription needed. Use your Anthropic API key & Claude 3.5 Sonnet to summarize YouTube videos.
Feedback welcome 🙏 hi@ytsum.io
Instructions:
- Click the extension icon and enter your Anthropic API key (which you can get here: https://www.anthropic.com/api)
- Open a YouTube video, scroll down a little, the extension box should appear above the comments section
- Click fetch transcript (if auto fetch is enabled you can skip this step)
- Click analyze transcript (this does not happen automatically)
Note:
- Token counter is slightly off (in general the estimate is higher than the actual usage)
- Fails sometimes, if the response from the API isn't perfectly formed
- Does not work with extremely long videos due to token limits
Feedback welcome 🙏 hi@ytsum.io
Instructions:
- Click the extension icon and enter your Anthropic API key (which you can get here: https://www.anthropic.com/api)
- Open a YouTube video, scroll down a little, the extension box should appear above the comments section
- Click fetch transcript (if auto fetch is enabled you can skip this step)
- Click analyze transcript (this does not happen automatically)
Note:
- Token counter is slightly off (in general the estimate is higher than the actual usage)
- Fails sometimes, if the response from the API isn't perfectly formed
- Does not work with extremely long videos due to token limits
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