marathons, polar bears. works on mobile at @microsoft ; opinions are my own alumni @Princeton

San Francisco, CA
Joined August 2025
Concept retweeted
Vibe coding is more addictive than any video game ever made (if you know what you want to build).
1,818
2,903
734
29,539
1,799,140
Concept retweeted
Software will proliferate just as videos, music, writing did. The market structure will shift from a “fat middle” to mega-aggregators and a long tail. It’ll be a slower process due to network effects, but many traditional vendor lock-ins will get eaten by AI.
637
710
136
9,768
1,106,910
I packaged up the "autoresearch" project into a new self-contained minimal repo if people would like to play over the weekend. It's basically nanochat LLM training core stripped down to a single-GPU, one file version of ~630 lines of code, then: - the human iterates on the prompt (.md) - the AI agent iterates on the training code (.py) The goal is to engineer your agents to make the fastest research progress indefinitely and without any of your own involvement. In the image, every dot is a complete LLM training run that lasts exactly 5 minutes. The agent works in an autonomous loop on a git feature branch and accumulates git commits to the training script as it finds better settings (of lower validation loss by the end) of the neural network architecture, the optimizer, all the hyperparameters, etc. You can imagine comparing the research progress of different prompts, different agents, etc. github.com/karpathy/autorese… Part code, part sci-fi, and a pinch of psychosis :)
1,042
3,577
1,136
28,160
11,173,892
Concept retweeted
I can’t believe people in SF Bay Area are paying $6k for an in-person OpenClaw install. It’s literally just a one-time setup on a Mac mini. This is insane! Time to switch your jobs guys.
351
142
146
3,160
971,337
nanochat now trains GPT-2 capability model in just 2 hours on a single 8XH100 node (down from ~3 hours 1 month ago). Getting a lot closer to ~interactive! A bunch of tuning and features (fp8) went in but the biggest difference was a switch of the dataset from FineWeb-edu to NVIDIA ClimbMix (nice work NVIDIA!). I had tried Olmo, FineWeb, DCLM which all led to regressions, ClimbMix worked really well out of the box (to the point that I am slightly suspicious about about goodharting, though reading the paper it seems ~ok). In other news, after trying a few approaches for how to set things up, I now have AI Agents iterating on nanochat automatically, so I'll just leave this running for a while, go relax a bit and enjoy the feeling of post-agi :). Visualized here as an example: 110 changes made over the last ~12 hours, bringing the validation loss so far from 0.862415 down to 0.858039 for a d12 model, at no cost to wall clock time. The agent works on a feature branch, tries out ideas, merges them when they work and iterates. Amusingly, over the last ~2 weeks I almost feel like I've iterated more on the "meta-setup" where I optimize and tune the agent flows even more than the nanochat repo directly.
325
552
102
6,468
658,058
Concept retweeted
Sam Altman
@samaMar 5
GPT-5.4 is launching, available now in the API and Codex and rolling out over the course of the day in ChatGPT. It's much better at knowledge work and web search, and it has native computer use capabilities. You can steer it mid-response, and it supports 1m tokens of context.
1,910
1,134
543
12,577
1,342,486
Concept retweeted
We open sourced an operating system for ai agents 137k lines of rust, MIT licensed we love @openclaw and it inspired a lot of what we built. but we wanted something that works at the kernel level so we built @openfangg agents run inside WASM sandboxes the same way processes run on linux. the kernel schedules them, isolates them, meters their resources, and kills them if they go rogue. it has 16 security layers baked into the core. WASM sandboxing, merkle hash-chain audit trails, taint tracking on secrets, signed agent manifests, prompt injection detection, SSRF protection, and more. every layer works independently. giving an LLM tools with zero isolation is insane and we're not doing it. we also created something called Hands. right now every ai agent is a chatbot that waits for you to type. Hands are different. you activate one and it runs on a schedule, 24/7, no prompting needed. your Lead Hand finds and scores prospects every morning and delivers them to your telegram before you wake up. your Researcher Hand writes cited reports while you sleep. your Collector Hand monitors targets and builds knowledge graphs continuously. they work for you. you don't babysit them github.com/RightNow-AI/openf… ⭐
262
470
127
4,262
743,275
Concept retweeted
AI inside, crypto outside. Within your tribe's trusted perimeter, you give AI all the context and let it figure it out. But outside your tribe's trusted perimeter, you hit a wall of AI spam. Now you need cryptographic verification to see what's true.
182
121
35
1,279
108,092
the cybersecurity industry is about to get completely disrupted.. 💀 someone just open-sourced a fully autonomous AI Red Team. it’s called PentAGI. multiple AI agents that talk to each other to hack a target. zero human input.
421
1,360
210
9,180
970,930
Concept retweeted
Careers are dead. Jobs are dying. Opportunities arising.
1,434
3,222
501
36,990
2,182,955
We just made a $200,000,000 AI movie in just one day. Yes, this is 100% AI.
8,305
8,619
5,357
58,912
20,399,747
the best 20 accounts to follow in AI: @karpathy = LLMs king @steipete = built openclaw @gregisenberg = startup ideas king @rileybrown = vibecode king @corbin_braun = cursor king @jackfriks = solo apps king @levelsio = solo startups king @marclou = solo startups king @EXM7777 = AI ops + systems king @eptwts = AI money twitter king @godofprompt = prompt king @vasuman = AI agents king @AmirMushich= AI ads king @0xROAS = AI UGCs king @egeberkina = AI images king @MengTo= AI landing pages king @rryssf = automations king @kloss_xyz = systems architecture king @emollick = AI science king @Hesamation = AI/ML king follow them all and learn.
323
1,328
101
8,745
1,145,428
Concept retweeted
Work with hardcore people on hardcore things.
768
1,765
199
17,447
845,409
“My brain is only a receiver, in the Universe there is a core from which we obtain knowledge, strength and inspiration. I have not penetrated into the secrets of this core, but I know that it exists” ~ Nikola Tesla
134
924
84
5,083
225,550
Concept retweeted
HOW TO FIX YOUR ENTIRE LIFE IN 1 DAY
2,510
4,109
1,367
25,862
28,557,368
Concept retweeted
I got that mini e-reader that everyone was talking about! I love how small and light it is, fits perfectly with my iPhone Air. The software is super bare bones and DIY. I’m going to use Claude Code to make a new OS for it. To be continued!
204
158
118
5,744
906,702
Concept retweeted
If you aren’t getting happier as you get older, you’re doing it wrong.
958
3,985
337
35,770
1,247,507
Concept retweeted
Robots are replacing all the people doing robotic jobs.
756
1,151
226
12,162
717,093
Saturday isn’t a break, it’s a build.
70
97
29
1,351
66,269
GPT-5 is freaking awesome. image credit : r/u/HKelephant20
70
186
37
2,672
210,797