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Launch HN: Cardboard (YC W26) – Agentic video editor

usecardboard.com

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Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#31
post #23

Wow! congrats on the launch guys. client-side rendering is incredible, really. I saw your product somewhere and have it as an open tab in my chrome for ~2 weeks :D I also saw another YC company, Mosaic, doing something similar. But your approach of chat-based editing is a lot closer to what I'm building. Shameless plug: I'm also working on a chat-based media processor. https://chatoctopus.com But you guys are way ahe…

mosaic's approach is also v fresh. curious about the flow after a user q/a with an asset in chatoctopus?

and ig it's time to revisit that chrome tab :)

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#33

Love this idea! I built something similar last year https://www.usecrossfade.com and know how difficult this is to get right - I'm rooting for you guys!

Thank you! You're right, there are so many subtle things to get right, appreciate the kind words. Crossfade's landing page looks slick btw!

Thanks! Yeah, it can just quickly spiral into this massive product when you take video editing which has a base level of features you sort of expect and add on a whole new paradigm like AI-assisted. But really like your approach!

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#35
Helpful for those who care less about the craft and more about a quick outcome. Werner Herzog said that he watches his footage a few times, takes extensive notes then edits based on his notes. That's how he crafts such extraordinary, once-in-a-lifetime stories. But for those who are working on commercial or home movies, why not use AI to build a narrative? It can be like throwing dice and the outcome could be OK. Maybe even good.

Regardless, having a tool that knows the content of your footage is a huge time saver. Good luck with the product.

Re: Launch HN: Cardboard (YC W26) – Agentic video editor

#37

Impressive UI. I assume you must be doing some kind of RAG + audio/video transcription on all the media. What's RAG architecture did you go with?

we've found more success with similar directions to what claude code took. maybe its closer to hybrid+agentic RAG
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