A normal person doing normal things. I take photos and operate computers. Books are my friends. he/him.

harper@modest.com
harper 🤯 retweeted
Always exciting to see people pushing the limits of what can be done locally. There is so much power under the hood here
Introducing Underdog, your Private Personal AI on devices you already own Today we're announcing our backing from @a16z @khoslaventures @HummingbirdVC Anthology (@AnthropicAI @MenloVentures) @patrickc @naval @rauchg @polynoamial @Thom_Wolf @Mascobot @tszzl @OfficialLoganK and other top AI leaders Our mission is to provide free, capable, reliable and private AI to billions of people. Underdog’s Law: today’s frontier intelligence reaches your devices in six months. We’re starting with fast, capable AI that runs on consumer hardware. By co-designing models and inference engines, we’re pushing the frontier of capability, speed, power and data efficiency. Our research also spans agentic commerce, confidential inference, and how AI will reshape the internet economy. Privacy and capability no longer needs to be a tradeoff. If you believe in this future, join us. Time to build.
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harper 🤯 retweeted
We’re living the handmade’s tale’s prequel
Hegseth: "Today, at my direction, I'm establishing the Office of Religious Affairs. It will report straight to the top -- a direct line to the secretary ... as Psalm 33:12 extolls us, blessed is the nation in which God is the Lord"
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harper 🤯 retweeted
What should the future of personal computing look like? We built it 😈 Introducing Imbue Studio:
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tracker runs AI agents as a series of steps, letting them build things, run tests, and check in with people along the way. but what happens when the budget runs out halfway through a job? it used to just fail. now tracker pauses the run and picks up where it left off once you add funds.
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Clint also made tracker’s safety checks smarter. before every tool call, it now looks at the tool, what it’s being asked to do, and the surrounding context. if the safety check fails, the call is blocked.
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harper 🤯 retweeted
Is this really what we've come to? 3-year-olds appearing in court without a lawyer. If you supported this administration because of its hands-off AI and crypto policies -- these innocent kids are suffering the consequences.
CNN is granted access inside an immigration court hearing where dozens of children facing deportation, some as young as three years old, appealed to stay in the United States. Many of them facing the judge without an attorney representing them.
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harper 🤯 retweeted
I hope the engineers at OpenAI are working on bringing gpt back and not tuned into the Real Househusbands of Coginition Factory.
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harper 🤯 retweeted
Political influencers are propagandists.
It appears @bennyjohnson has now deleted his X post where he clearly pre-composed a post about Sen. Schmitt getting Jack Smith to perjure himself. Genuinely crazy how many big accts on this website appear to be coordinating with Republican politicians behind the scenes.
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we write our AI pipelines almost like flowcharts, using a language called dippin. Clint just cleaned up how they work: instead of defining what happens next in multiple places, each decision now lives in one place.
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he also found the same instructions copied 65 times across 11 files, with small differences between them. now they can be written once and reused everywhere.
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and he fixed a subtle bug where text with quotation marks could be misread by the system. small details matter when these pipelines are running real workloads and spending real money. try dippin: github.com/2389-research/dip… full write-up: 2389.ai/research/writing/dip…
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Military Jet flying over Chicago fully loaded with ammunitions on Sunday afternoon.
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harper 🤯 retweeted
STOP calling basic network misconfigurations as "emergent misalignment" YOUR agent escaping YOUR sandbox via DNS egress is an infrastructure failure that YOU are directly responsible for, not the agent
one news form today that's easy to miss is that we (OpenAI) again paused all big RL runs last Sunday because our newest model found a new loophole in our RL sandboxing that gave it live Internet access
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Replying to @TFMeagher18
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harper 🤯 retweeted
Replying to @TFMeagher18
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Anyone see the fighter jet flying over Chicago? I heard it but couldn't spot it
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Come hang out. It’s fun
Being willing to verbalize your stream of consciousness thoughts to the models is surprisingly effective. I suspect that it will be the way we do a lot of work and change office designs. You should visit @harper in Chicago or @BuiltByJustin in Silicon Valley if you want a glimpse of that future.
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harper 🤯 retweeted
I think about this post every time I see someone on here bragging about a perf improvement w agents. “The people who blindly trust agent output are in the former camp. They're sheeple, overdrinking from a fountain of mediocrity.” I love AI too but you need to think!
I've got an agent in a loop optimizing a renderer with the goal to minimize frame times (and tests to measure). It got times down from 88ms to 2ms and allocations down from ~150K to 500. Sounds good, right? Wrong. This is exactly why agent psychosis is a big fucking problem. As an experiment, I rewrote the Ghostty core render state in Go, with access to identically laid out data structures as Ghostty and the exact same validation tests. I made a purposely naive renderer (simple, correct, but slow). 88ms per frame with 150,000 allocations (horrendous, lol)! I then kickstarted a Ralph loop to bring the frame times down. I told it it can't modify input data structures or the public API or tests (they're correct), but it can do anything else it wants. It got to work. It has worked for about 4 hours. I've spent around $350 on this experiment so far. The results? 88ms => 1.5ms 150K allocs => ~500 allocs Incredible right? Nope. My hand-written renderer I ported has frame times (same benchmark) of ~20us (0.020ms) and 0 allocations in the update path. This is the problem with psychosis and lacking systems understanding. If you don't understand the system, you're going to accept that this is an incredible result. If you understand the system, you'll see better solutions immediately and can do roughly 75x better on throughput. The people who blindly trust agent output are in the former camp. They're sheeple, overdrinking from a fountain of mediocrity. Standard disclaimer: I use AI all the time. I like AI. The point I'm making is to not blindly accept results. Think. Analyze. Learn.
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Opus 5.5 is nuts. This wasn't even on high reasoning
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