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Rahul Chhabra
@rahulchhabra07
ceo @sabi. make something wonderful.
8K Following    10.4K Followers
All that said, I'm generally excited about this new paradigm. It gives us a whole new axis to scale AI models - towards personalized responses. Which is more impactful to large scale adoption than just intelligence. If AI can understand you, it can make things more beautiful for you. We are hoping to help make a more beautiful world for everyone.
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Introducing RL with Neural Feedback (RLNF). We have found reliable ways to train AI models to respond to human preferences purely from brain signals. The example below is a picture of a face that self-transforms into a more attractive version for the subject as they are looking at it.
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we've raised $50M from Khosla Ventures, Accel, Initialized, Kevin Weil, DST Global to build the world's most wearable BCI cap at Sabi read more here:
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Sabi is building a great team, if you’re building in AI or neurotech, should talk to their team
Impressive results from @alephneuro producing rich ultrasound images using contrastive bubbles in arteries. (previous SOTA was 25 microns with ultrasound and contrastive bubbles [1]) It's quite amazing how prescient and remarkable MindEye[2] has been in laying the groundwork for non-invasive neural decoding, spawning many of the most interesting works in the field. In 2023, @abanerjee99 and @humanscotti had the unique foresight to use large fMRI datasets and train deep learning models to decode what a person was looking at, purely from neural signals. The consensus in the field at this time was that the only way to do meaningful decoding is via drilling a hole inside the skull and putting a chip inside the brain, which, if it had its way, would be an extremely morbid future for humanity. When we first saw the MindEye reconstructions, it was clear we would finally be able to build a cap that could decode thoughts and bring telepathy to humanity at scale. That's also exactly when @abanerjee99 and I decided to build @sabi together. ---- 1. Transcranial ultrafast ultrasound localization microscopy of brain vasculature in patients 2. Reconstructing the Mind’s Eye: fMRI-to-Image with Contrastive Learning and Diffusion Priors
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We think this problem is newly tractable. In 2023, MindEye showed astonishing reconstructions of seen images from fMRI brain data. On the left: the image that was shown to a subject. On the right: the image predicted from the subject’s brain activity.
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Paul Bucheit once wrote If your product is great, it doesn't need to be good. Kinda applies to VCs too. There are plenty companies that simply won't happen if not for @vkhosla putting his $$ and name behind it. Also, Anyone who's taken money from him always ranks him at the top.
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you can now control things with your brain. literally. we're building the most wearable BCI on the planet, with @sabi, backed by @khoslaventures @accel @initialized & @kevinweil. we collected the world’s largest neural dataset and trained the most capable Brain Foundation Model. then we invented a new class of biosensors powered by custom ASICs. type without typing. click without clicking. a cap that lets your brain do the work. we’re sabi.
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silicon valley died a bit when they massacred travis kalanick. when we let the journos and some men in suits decide what was the right way to do things. good that the nature is finally healing.
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the deal-guy era has officially ended. we're back to the hardcore-guy era. neture is finally healing.
your favorite founders’ favorite founder
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Your brand is built by your product. When people use your thing (or dont) day in, day out, how the product feels is what they remember and feel - that’s your brand. People spend too much time on logos and ads and never enough on the thing they’re making for people.
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PREDICTION: @travisk will be back as uber ceo in 12 months uber is in a slump, about to lose entire market to self driving. and self driving is exactly a TK-shaped problem. heavy regulation, no precedence, tech still need to become more magical for the user - lot more headroom. scale matters, growth matters, magic matters, love from users matters. and TK is the best at all!
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Absolutely wrong. Many more neuronal signals available non-invasively compared to invasive procedures. Invasive also limits scaling. Imagine doing a billion brain surgeries to replace a billion keyboards?
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The real trick @elonmusk will be to do this non-invasively. This and much more in BCI WILL happen in 2026, the year of non-invasive BCI!