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schopra909

HN member
Joined
Mon, Jul 20, 2020, 3:55 PM UTC
HN karma
135
Public activity
35 items

About schopra909

https://thesahilchopra.com/

sahil@linum.ai

Recent public activity

  1. comment
    Comment #49264439

    I’m not entirely sure if local development will lead to Nvidia’s supremacy being challenged. I think a simple reason why it’s been hard to unseat in Nvidia is first mover advantage…

  2. comment
    Comment #49264357

    100% agreed.

  3. comment
    Comment #47665301

    Honestly never considered the forking use case; but it makes a ton of sense when explained Congrats on the launch. This is cool tech

  4. comment
    Comment #47443815

    Really cool to see innovation in terms of quality of tiny models. Great work!

  5. comment
    Comment #47372485

    Very cool work! We spend a lot of time thinking about "robust representations" in the video space. Are there any alternative ideas to JEPA right now, when it comes to speech encodi…

  6. comment
    Comment #47343025

    Honest question, why were folks posting AI generated comments in the first place? There's such a high inertia to comment. I only comment when I have something to contribute OR find…

  7. story
  8. comment
    Comment #47162545

    It’s a great question. In terms of pre-training even if they were was enough data at that quality, storing it and either demuxing it into raw frames OR compressing it with a suffic…

  9. comment
    Comment #47160034

    honestly, it's really hard to shorten the feedback loop in this space. For this, we really just did run one experiment at a time and visually inspect the results everywhere. when y…

  10. comment
    Comment #47159351

    Hadn’t seen that before! Seems very in line with what with the broader points about regularization. In table 4 they show faster convergence in 200 epochs when used alongside REPA. …

  11. comment
    Comment #47158897

    yep, Apache 2.0! so anyone's welcome to download and hack away

  12. comment
    Comment #47141121

    Hi HN, I’m one of the two authors of the post and the Linum v2 text-to-video model ( https://news.ycombinator.com/item?id=46721488 ). We're releasing our Image-Video VAE (open weig…

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  14. comment
    Comment #47138261

    This is very cool. Side note, I really dig the JavaScript animations on the causal block diffusion blog post. Made the concept immediately clear

  15. comment
    Comment #46733136

    That all being said, you can just delete the T5 from memory after encoding the text so save on memory. The 2B parameters will take up 4 Gb of memory but activations will be a lot m…

  16. comment
    Comment #46733111

    Great idea! We haven’t tried it but def interested to see if that works as well. When we started down this path, T5 was the standard (back in 2024). Likely won’t be the text encode…

  17. comment
    Comment #46733082

    I think YC just release video on the basics of diffusion, but honestly I don’t have a good end to end guide. We’re going to write up going 0->1 on a video model (all the steps) ove…

  18. comment
    Comment #46733038

    https://www.linum.ai/field-notes

  19. comment
    Comment #46733030

    Not public yet — we’re going to clean it up so it’s readable and release it as blog posts. First one will be everything you need to know on building a VAE for image and video. Shou…

  20. comment
    Comment #46727196

    T5 Encoder is ~5B parameters so back of the envelope would be ~10GB of VRAM (it's in bfloat16). So, for 360p should take ~15 GB RAM (+/- a few GB based on the duration of video gen…

  21. comment
    Comment #46722643

    Per the RAM comment, you may able to get it run locally with two tweaks: https://github.com/Linum-AI/linum-v2/blob/298b1bb9186b5b9ff6... 1) Free up the t5 as soon as the text is en…

  22. comment
    Comment #46722149

    Should be fixed now! Thanks again for the heads up

  23. comment
    Comment #46722101

    Oh damn! Thanks for catching that -- going to ping the HF folks to see what they can do to fix the collection link. In the meantime here's the individual links to the models: https…

  24. story
    Show HN: Text-to-video model from scratch (2 brothers, 2 years, 2B params)

    Writeup (includes good/bad sample generations): https://www.linum.ai/field-notes/launch-linum-v2 We're Sahil and Manu, two brothers who spent the last 2 years training text-to-vide…

  25. story