Show HN: Summary Cat, a YouTube Video Summary Generator

Hello HN!

Please check out Summary Cat (https://www.summarycat.com). It uses OpenAI's GPT-3.5 to summarize YouTube transcripts.

Please note that it only works for

  - *English* videos.
  - videos that are not too long in length.

I'd appreciate any feedbacks, criticisms, or feature requests!! You can also find my contact info in my profile. Thank you in advance.

------------Technical Details---------------

Tech Stack

  - Frontend: HTML/CSS
  - Backend: Python/Flask

APIs:

  - For grabbing YouTube's transcripts: I used youtube-transcript-api (https://pypi.org/project/youtube-transcript-api/)
  - For summarizing the transcripts: I used OpenAI's GPT-3.5-turbo-16k: https://platform.openai.com/docs/guides/gpt.
  - I used GPT-3.5 because GPT-4 is quite a lot more expensive (roughly 10X).

My Prompt (Super Simple!)

  - "please summarize the following text into a few paragraphs:"  + the full transcript.

Thoughts about GPT-4 vs GPT-3.5-Turbo-16k for Summary Cat

  - GPT-4 was 20% better for "summary quality"
  - GPT-4 feels 50% faster
  - However, GPT-4 is about 10X as expensive as GPT-3.5
  - Winner: GPT-3.5-Turbo-16k

Show HN: Summary Cat, a YouTube Video Summary Generator
summarycat.com

Hello! Thanks for the question. I do not myself restrict tokens/session. The model I am using GPT-3.5-Turbo-16k (https://platform.openai.com/docs/models/gpt-3-5), allows max 16,385 tokens in total per input/output.

So far, I found that each ~10 minute video uses around 1000 tokens. It costs me about 3 cents to summarize, which is not too bad as I don't have many users, and users haven't been requesting summaries for super long videos yet.

If this sites gets a lot of interest, I might start restricting something :)..

GPT 3.5 Pricing: https://openai.com/pricing

Thanks for the question... Any sample videos you are thinking of?

Summary Cat doesn't work for videos where there's not a lot of speaking. I am hoping to build a bit more on text-rich videos first, so I do not plan to do actual video (image) processing any time soon.

I will keep that in mind!!

Plugged in this meme video and it gave me the "As a AI I can't...": https://www.youtube.com/watch?v=NlZzftmtGJY

Are you using celery for your async workers? Cool project!

I tested it with two videos, the first one it does the summary quite well: https://youtu.be/Cy-NgpRN1FU, I love how it mentions the dogs name is Ernie, that made me smile :)

But in the second video https://www.youtube.com/watch?v=NBFyvOV7fz8 the app keeps mentioning things like: "The text discusses...", but the content is not a text, it's a video.

Really cool app, it's really quick too!