high school grad, founder, ml + hci research
sf 🇺🇸
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we just gave @sama a ride in our self-driving golf cart!
thanks for making it happen @OpenAIDevs and Codex Labs
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I’m a 19 y/o founder from Germany, and I cracked how Google’s Text Diffusion model works!
There are three main approaches on this topic:
Community note
The video in this post is from this blog:
hkunlp.github.io/blog/2025/drea
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1. D3PM / SEDD: Puzzle-style Token Repair
Mask-and-fix diffusion. Sentences are gradually “shredded” into ⟨MASK⟩ tokens; a transformer learns to un-shred them step-by-step.
Imagine ChatGPT playing Wordle, but at 100x speed. (Discrete forward process + cross-entropy denoising ≈ GPT-level perplexity)
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Sources:
deepmind.google/models/gemin…
arxiv.org/pdf/2310.16834
arxiv.org/pdf/2205.14217
arxiv.org/pdf/2503.09573
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3. BlockDiff (Gemini): High-Speed Blockwise Diffusion
LEGO-blocks diffusion. Generate 16-token blocks in parallel, then snap them together left-to-right. 8 denoise passes per block, KV-cache reused → 1.5 k token/s on TPU. Same fluency as autoregressive, 5× faster.
Think about an F1 pit crew - when an F1 car pulls into a pit stop, the crew works simultaneously, in parallel, to service the car all at once (changing tires, refueling, fixing problems).
That’s how the model can write entire paragraphs so fast!
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2. Diffusion-LM: Noise-to-Meaning with Classifier Guidance
Static-to-speech diffusion. Add Gaussian noise to token embeddings → predict the noise out. Because it’s continuous, you can steer with gradients (sentiment, style, etc.) like turning a radio dial until the song is crisp. (DDIM-8, classifier-free guidance)
It’s like painting with watercolors. You start with a wet, blurry sketch, but over 8 quick steps, it dries and sharpens. As it’s drying, you can tweak the colors - like making it brighter, or adding more blue - and the painting will adapt as it sets.
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I just put perplexity on my Apple Watch
just push to talk and ask your question — like a walkie talkie
free forever. download link below 👇
enjoy :) cc. @buildspace @dantelentini @FarzaTV @amit_ajwani / @AravSrinivas
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YC Summer Conference was incredible!
Great talks from @eshear & @handotdev with @snowmaker & @harjtaggar!
cc @adamcandoit @ycombinator
Takeaways:
- It is a people game. It always comes down to the people you can inspire to work on a vision with you.
- "You will feel if you have PMF". If you ask yourself if you have already found PMF, you probably haven’t.
- Mintlify: You might need to pivot 100 times, but if you just don’t die, you will find the right project, and then it will hit!
- Mintlify & Harj: A great co-founder is like a superpower.
- Emmett Shear: Build things that you genuinely love to use yourself and that you can find 5 other people that are also obsessed with using it.
- If you can’t find 10 people that absolutely love a product and that spread it everywhere, how do you want to convince 1k, 100k, or 1M people?
General about YC:
- Make something people want. It sounds so simple but is actually very hard for most people to understand. Instead of trying to understand which tricks to use to increase retention, you should build a product that people can’t stop using.
- The partners actually care for each founder, visitor, company, user, ANYONE.
- They take the time to just talk to you and spend two hours deep diving into a topic. @snowmaker @harjtaggar
- You can just go up to a YC partner and ask for help on a problem you have, and they are more than welcome to help you.
- Some YC founders took the YC deal way past the “YC stage“ and said it was the best decision of their life. “You don’t do YC for the money, but everything else it has to offer.“
- Move to the Bay Area. This is the place to be.
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I built a Apple Watch App to have @perplexity_ai just on my wrist. Try it out for free on TestFlight! #AppleWatch
testflight.apple.com/join/kC…
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buildspace s5 irl was just unbelievable!
„press 1 if you can hear me and see me!“ 😭
i am still trying to figure out the right words for how fantastic it was and to show how much I benefited from it!
i got so much value for my project which is the apple watch app „per watch“ that brings @perplexity_ai on your wrist!
i've made progress, made new friends and like farza said at the beginning, I now know much better where this is going next!
cc: @FarzaTV @dantelentini @jeffrey_notes @stavan @amit_ajwani @adriannalakatos @_buildspace @_nightsweekends
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introducing per watch
it brings perplexity to apple watch
- perplexity & groqai on your wrist
- uses groqai for two-word answers
- „push-to-talk“ for questions
550+ ppl joined the beta over the last six weeks.
link in bio
@FarzaTV @amit_ajwani @_buildspace @_nightsweekends
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i just submitted my @ycombinator application for the fall 2024 batch!
huge thanks to @dantelentini and @stavan
cc: @AravSrinivas @garrytan @_buildspace
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Huge thanks to the Apple Team who made this experience so amazing!
It is so inspiring to learn more about VisionOS and the Apple Vision Pro!
Special Thanks to the „Apple Evangelist“ Team!
@lindadong @settern @curtclifton @heysarahrose @outernet_twitt
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Heard Mark Zuckerberg on AI and
@patrickc on the future of payments!
Saw @collision vibe code the AMA app live on stage!
Jony Ives talk was INCREDIBLE and felt like a love, philosophy and design lesson!
Discussed everything from growth to politics with @levelsio !!
Big shout out to @felixleezd for camping in front of Jony's talk and running to get first row seats! 🤪
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I cracked Google’s text diffusion model.
here’s how it works:
We’ve developed Gemini Diffusion: our state-of-the-art text diffusion model.
Instead of predicting text directly, it learns to generate outputs by refining noise, step-by-step. This helps it excel at coding and math, where it can iterate over solutions quickly. #GoogleIO
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After working almost non-stop on my submission for the #SwiftStudentChallenge lately, it feels so great to finally have it submitted! I wish all the other participants good luck 🍀 and hope to see many of you in real life at the upcoming WWDC!🤩#WWDC24 Can’t wait for the results!
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so excited to be back in sf! 🌁 ✈️
ready to dive into the sf startup hustle and build „per watch“🚀
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Wow! I am so excited @_buildspace! I dont know what to expect and how this will be, but I am really excited! 🤩
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lfg!!! sf i am coming!
i will attend buildspace s5 irl!
i am so excited! this is gonna be wild!
thanks to @amit_ajwani for your help! @FarzaTV can't wait to see y'all!
cc: @dantelentini @wordisbonz @_buildspace @_nightsweekends
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watching @FarzaTV and the team until 3am in the night!
you guys are one fire!
cc: @wordisbonz @dantelentini @_buildspace @_nightsweekends
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i am on my way to buildspace s5 irl event and i am soooo excited!
cc: @FarzaTV @amit_ajwani @_nightsweekends @_buildspace
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Huge motivation, Jordan! For 2025 I want to start writing again. Published my first article today on article (dot) app 👇 below
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⚡️launching perplexity for your apple watch
this week
- improved the time it takes to get an answer
- released the new „push-to-talk“ feature to some testflight users
- fixed bugs etc
go check out the link in comments
cc: @amit_ajwani @FarzaTV @_nightsweekends @_buildspace
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introducing per watch:
@perplexity_ai for apple watch!
a app that uses perplexity to:
⌚️answer your questions directly on your wrist
⚡️one word answers at the top
📚based on multiple online sources
testflight beta is live! testflight.apple.com/join/kC…
cc: @FarzaTV @wordisbonz @_nightsweekends @_buildspace
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What an amazing night! Thanks @zfellows for making this possible!
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@NikiasMolina AMAZING APP! 🍿🎥🎬
Beautiful and easy to use! I love the playlist feature and the Apple Watch integration!
After years of hard work. I can't believe we are launching today.
Introducing Kernel, your new home of entertainment.
Here's 5 reasons you need to download right now if you love movies and series. 👇🏼
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this one is for the buildspace team and community!
only 17.879326 days left till demo day and it’s coming closer with every sec
this app brings the iconic decimal countdown of buildspaceOS to your home & lock screen!
link in the next comment
try it on your iphone, ipad and mac
cc: @FarzaTV @amit_ajwani @dantelentini @wordisbonz @_buildspace @_nightsweekends
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As a big fan of @perplexity_ai, I built a Apple Watch App to have it just on my wrist. I am planning to release it on the App Store but I would love to hear from your side what you think about this Idea. Try it out for free on TestFlight! @AravSrinivas
testflight.apple.com/join/kC…
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HUGE congrats to Jony Ive!
BREAKING: OpenAI is buying Jony Ive’s secret AI company io for $6.5 Billion and will develop a slew of devices. Ive, in his return to hardware, and LoveFrom will oversee OpenAI design. All the details, including interviews with Ive, Sam Altman & others — bloomberg.com/news/articles/…
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Hey @AravSrinivas and @perplexity_ai, I built a Apple Watch App to have it just on my wrist. Try it out for free on TestFlight and let me know what you think!
testflight.apple.com/join/kC…
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the last 6 weeks were fantastic!
thank you so much buildspace s5 team!
can’t wait to see all of you at the irl event in sf!
cc: @FarzaTV @amit_ajwani @dantelentini @_nightsweekends @_buildspace
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"The Details Aren’t Details—They Make the Product"
article.app/georg/the-detail…
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I just released a huge new update 15 minutes ago! #ios #coding #indiegame #indiedeveloper #indiedev #hypercasual
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Wenn dann nur zwei Personen in der Gruppe sind ist es keine Gruppe sondern nur eine normale Konversation zwischen zwei Leuten.😂😂👍😀😀😀
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I submitted my Buildspace Update #2 a few hours ago and it feels great! I accomplished so much this week and got so much feedback from my TestFlight Beta Users!
Join the TestFlight using this Link: testflight.apple.com/join/kC…
cc: @_nightsweekends @_buildspace
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@vedantapps This looks fantastic and the animations are so smooth! 🤩 It looks Distinguished Winner worthy! I hope I win too so I can get to know all of you all #WWDC24! #SwiftStudentChallenge
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Ich bin ja zum Glück ein iPhone Nutzer aber war immer angetan von OnePlus ursprünglich Ochse Firmenphilosophie nur in den letzten Jahren haben sie die irgendwie ganz aufgegeben und die Designs werden immer schlimmer!
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i submitted update #1 of nights&weekends and it feels great!
cant wait for lecture #2!
cc: @_nightsweekends @_buildspace
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i just submitted my buildspace update 4!
i added the new push-to-talk button which really reminds me of a walkie talkie!
i also implemented so many tiny changes that many of you reported to me or that just make the overall experience faster!
you can try out all of the new features soon by joining the beta using this link: testflight.apple.com/join/kC…
cc: @amit_ajwani @FarzaTV @_nightsweekends @_buildspace
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That looks so clean! Great design! I am so sad this combination of Software and Hardware does not exist!
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I can’t wait for DubDub24! I am so EXCITED!!! 🤩 #WWDC24 And so curious for the #SwiftStudentChallenge Winners!
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It was created at the same time as so many other incredibly good designs from Apple! MacOS Aqua UI really looks delicious!
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#AppleEvent #mac #imac Apple hat gerade einen neuen iMac mit M1 Prozessor vorgestellt! In vielen neuen Farben!
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introducing per watch
it brings perplexity to apple watch
- perplexity & groqai on your wrist
- uses groqai for two-word answers
- „push-to-talk“ for questions
550+ ppl joined the beta over the last six weeks.
link in bio
@FarzaTV @amit_ajwani @_buildspace @_nightsweekends
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The Microsoft Ads look always beautiful and so interactive but the products feel the complete opposite wich is why I am a Mac User! Macs do not only look good they are actually good!
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These little details are all over the hole Ecosystem! I love them! Btw have you ever noticed that the on/off toggle of the iPhone Flashlight changes?
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here is my idea for nights&weekends s5!
i will work on my app „Per Watch“ which brings all he knowledge of @perplexity_ai to the apple watch!
the goal is to provide answers that are straightforward and cut out all the „ai yapping“
i am so excited for buildspace s5 and would love to hear your opinion on my idea and idea slide!
cc: @_nightsweekends @_buildspace
I built a Apple Watch App to have @perplexity_ai just on my wrist. Try it out for free on TestFlight! #AppleWatch
testflight.apple.com/join/kC…
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Um ehrlich zu sein verstehe ich diese Aussage nicht ich bin überhaupt nicht der Meinung dass YouTube Technik eine Dauer Werbesendung ist. Also wenn man jetzt mal davon ausgeht dass du über Werbung vor oder nach einem YouTube Video sprichst dann finde ich geht das noch ganz gut!
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⚡️introducing "Push-to-Talk" for my apple watch app!
i build perplexity for your apple watch
you told me that you want faster dictating so i integrated this new walkie talkie like dictation which
- reduces the number of taps needed
- a lot faster due to new speech recognition
join beta using link in next comment
cc: @FarzaTV @amit_ajwani @_buildspace @_nightsweekends
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Yes! It was amazing! It was around everything Apple Vision Pro and VisionOS, the new possibilities that these platforms offer and how to integrate it! 🤩
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This is a perfect mix between simple design and joyful animations! And I really like the colors! 👍🤩
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Congrats @zapnavigator! Great product & a very talented founder!
Is launching on @ProductHunt the new YC Demo Day, @rrhoover ?
Check out smartrip.ai, perplexity but for travel — help us get #1 of the day!!!
producthunt.com/posts/smartr…
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Maybe Donna can make time for you too...
sign up at usedonna.ai
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@NikiasMolina That is incredible! Such an interesting episode!🤩
podcasts.apple.com/de/podcas…
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Great article and inspiration! Congratulations! @itstuckermac @TideGuideApp
developer.apple.com/news/?id… #SwiftUI
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I just released a huge new update to my game Tricky Ring 15 minutes ago! Check it out! apps.apple.com/de/app/tricky… #ios #coding #indiegame #indiedeveloper #indiedev #hypercasual
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Oh mein Gott! 9to5Mac hat dein Video in ihrem Online Blog/Newsletter verwendet! @9to5mac
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