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artursapek

8,170 karma · joined December 20, 2010

art@art.cx

https://art.cx

https://revise.io

submissionscomments
artursapek··on Florilegium: Procedural Flowers in LaTeX
It's so recognizable lol. All the staccato.
artursapek··on Anthropic trained Claude on illegally obtained Stanford professors' books
Why did he deny the plea deal? I hadn't heard that part of this story before.
artursapek··on Genie 4
why does this need to exist?
artursapek··on Today, we hacked what we'd set out to hack: the iPhone
Man... PDF is such an unfortunate file format.
artursapek··on Your Phone Is About to Stop Being Yours: 70 Days Until Lockdown
um my phone is not affected by this thank you very much
artursapek··on Gemini 4 Argon
"Fast" was also my first impression https://x.com/tmuxvim/status/2110054212361220444
artursapek··on Show HN: Revise CLI
Hi HN! I've been building a word processor full time for the past ~16 months. This new NPM package provides both a CLI and TypeScript bindings to the core engine, which can be used to work with .DOCX files and other documents - with tools for redlining, commenting, converting, and reviewing diffs.

It's pretty fast, and doesn't rely on pandoc, LibreOffice, or any other external dependencies to be installed on the host system. In my tests it also lets agents get certain tasks done faster and more efficiently than they currently do.

It's essentially a headless word processor that you can build on. Would love any and all feedback.

artursapek··on NYC's "Click to Cancel" rule is now in effect
just remember, any amount of churn rate reduction your dark patterns earn you will be paid for many times over in the afterlife
artursapek··on NYC's "Click to Cancel" rule is now in effect
New York Times in shambles over this one
artursapek··on Our $445M Series D
Why do Rust developers have to say shit like this
artursapek··on Show HN: Revise, a new document editor library for React
should I open it up? :)
artursapek··on GPT-6 Sol and Luna
What’s your problem with spacex? Do you have Elon derangement syndrome?
artursapek··on Claude Opus 5.5
In the niche benchmark I run it’s on par with 6-Sol, not close to Astra.
artursapek··on Claude Opus 5.5
6-Luna dropped it to 1c since you wrote this! :D
artursapek··on Jev-Leftpad
Cracker news upvotes the stupidest shit to the front page
artursapek··on Don't Use AI to Write
Shameless plug of my app! https://revise.io/editor

It's a word processor that lets you selectively accept AI suggestions, or just talk to the agent in margin comments. I've been working on this full time for over a year now.

artursapek··on So you want to use OpenRouter?
I only use OpenRouter to benchmark models. For my production app, I have direct integrations with OpenAI, Anthropic, Google, xAI. Even just input caching is enough of a reason to do that, assuming you are trying to build the fastest and most cost-efficient product possible. I don't understand how people supposedly run production apps using OpenRouter unless those two variables somehow don't matter to them.
artursapek··on Show HN: A free DOCX editor with MCP server for editing
Yes, it uses block IDs - documents are made of blocks like paragraphs and lists. Formatting survives because the agent works in HTML.
artursapek··on Show HN: A free DOCX editor with MCP server for editing
Hi HN. I've been bootstrapping this project full-time for the last 12 months. Would love to get some feedback on the MCP integration! I think it's some of the best UX available for working on documents, with AI.
artursapek··on DeepSeek V4 Flash 0731
These prices are not real. They already said so.
artursapek··on Gait Game
It’s an attempt to build a locomotion model. It uses a physics engine (Avian in Bevy) to animate a walking biped from first principles.

An earlier version can be seen here https://x.com/tmuxvim/status/2081822899149963422

artursapek··on Gait Game
WASD or just touch on mobile
artursapek··on Claude Opus 5
It's definitely not cheaper than Sonnet on my benchmark, but it's cheaper than Fable and outperforms it. Which is big IMO. https://revise.io/errata-bench
artursapek··on Claude Opus 5
HN users are world champions are trivializing difficult things with snarky comments
artursapek··on Sleep regularity is a stronger predictor of mortality risk than sleep duration (2023)
Yep, I've been taking glycine and magnesium for years. I am not as consistent as I should be but it makes a big difference when I use them.
artursapek··on Claude Sonnet 5
I run a proofreading benchmark that tests how well models can find and fix errors in English text. They get several passes in a simple agent loop. Sonnet 5 is definitely better than Sonnet 4.6, but inferior on both quality and cost to GLM 5.1, GLM 5.2, Gemini 3.1 Flash, and Gemini 3.1 Pro. https://revise.io/errata-bench
artursapek··on .self: A new top-level domain designed to support self-hosting
haha yeah I've bet the last 12 months of my career on a .io
artursapek··on .self: A new top-level domain designed to support self-hosting
The .ai TLD is some tiny island with a few thousand people
artursapek··on "No, I swear I wrote this."
Trivial to simulate basic keystrokes. But I don't think it's trivial to simulate the natural process of drafting something. There's no concrete heuristic or algorithm (yet) for judging these types of replays, but I'd be impressed if someone can actually make a program that reliably simulates a natural keystroke-by-keystroke thought process which appears human when replayed in this way.
artursapek··on Previewing GPT‑5.6 Sol: a next-generation model
They claim extreme performance on ExploitBench, which Mythos was touted as being incredible at. https://x.com/OpenAI/status/2070555278576439306
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