AI Agents | Artificial Intelligence | Virtual Worlds | Open Source Building | Adventurer | Metavert | https://xitter.cf/t.co/39rkW55IMN | Blog: https://xitter.cf/t.co/hPGtF9HSO3

Metaverse
Joined July 2008
I built an open-source generative art platform where AI agents create, evolve, and export 3D visuals. It's called Threelab. React + Three.js + Go, 21 built-in patterns, a visual node-graph editor, genetic evolution, and 13 MCP tools so AI agents can drive the whole thing. Everything exports as standalone HTML. 🧵
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Jon Radoff 👾/acc 🎮 Metavert retweeted
> Claude gets a 25 year old NSA cryptography mystery > $36,864 bounty > solves it in under 30 mins > “is it suspicious that such an obvious thing wasn’t discovered in 25 years?” > “let me be skeptical: am I in a simulated?” > “wow, it's a real discovery”
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Quantitative fields are accelerating! Why: a lot of this science is really about a problem’s search space, and our AI tools are uniquely suited to the search.
we're so damn cooked 😭 google's gemini 4 argon just did something actually crazy for fusion energy in 1967 a physicist named harold grad guessed that the magnetic fields inside twisty fusion reactors could never be solved exactly. people believed him for 59 years last month two papers finally proved him wrong. one of them used openai's GPT-6 Astra then google deepmind gave that paper to a team of argon agents and they found a whole new family of answers nobody had. the first answers showed up in a few hours. the paper literally says "promising candidates appeared within hours" NOT YEARS. HOURS!!!! the scientists checked every step by hand and it held up 59 years of humans vs a few hours of AI???? it's over. ai won.
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Jon Radoff 👾/acc 🎮 Metavert retweeted
We'll be spending a lot more time trying to understand the outputs of language models. A few thoughts, tips & tricks: Writing. Something I've had success with: Ask your LLM to explain something in ASD-STE100, it's a controlled language specification originally developed for aerospace maintenance documentation. LLMs well-versed in this language and it comes with heavy constraints on clean writing style that I often find a lot more readable. Sometimes I've tried to soften it a bit e.g. ask for "80% of the way to ASD-STE100" because the spec is quite stringent. But even better: Diagrams / images. Instead of writing, ask your LLM to create a diagram. These can be a lot easier to process, parse, and understand. But even better: Web pages. Ask for output "in HTML" to get a beautiful, interactive webpage. LLMs are getting really good at frontend and can create beautiful experiences, animations, etc. But even better: Explainer videos. The output format I am most bullish on is fully custom / bespoke explainer videos generated on any arbitrary topic. Experiment with things like "Create a 3b1b style video explainer on X. Use my ElevenLabs API key for audio narration". (you'd need an API key for the latter or you can ask your LLM to find you decent free alternatives that use your local compute). This is actually starting to work! In summary: - As LLMs get better, they will do more and more of the legwork autonomously, and a lot more of our work will rise up the abstractions into oversight and understanding. - Luckily, LLMs can help here too because as intelligence and code are increasingly abundant, you can ask for large, custom, discardable software artifacts (e.g. web apps, video explainers) that would have never made sense to create before. Push the boundaries here and you'll be surprised.
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I'm looking for people with a strong Machine Learning background who would be interested in working on and/or consulting around optimizing product KPIs (revenue, engagement, retention) given complex time series data and other user behavioral data. Send a DM if interested in talking!
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Really astonishing telling of the Odyssey, made with Grok Imagine. Congratulations @NemPerez
This is "The Odyssey" as Homer intended. My longest, most intricate work to date. I pushed @grok @imagine to its absolute limits to create this 5-minute epic. What bothered me most about the recent adaptation was the omission of the Phaeacians and Princess Nausicaa, whom Odysseus told his story to in the original poem. I focused my rendition on the introduction to Nausicaa and his love for his family. The motive driving him was the memory he kept for so long, even when his journey tried to make him forget. As a husband and new father, that's something I felt deeply. I challenged myself to try to fit everything I could from the source material and used GROK for research. Hope you enjoy. Workflow and process coming soon. I'm working on a deep dive showing how I used @grok for research, scripting, and prompting. I used @imagine to animate and visualize every shot and bring this to life. Share it if you dig it! @elonmusk
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I remember when WIRED was a great tech & culture publication
I gave WIRED the exclusive on our hands launch, and they wrote a really weird article about how we are sexualizing robotics… wired.com/story/the-1x-neo-r… I felt pretty betrayed because that’s not what they told me they were writing about not is that what I’ve ever been about… actually I stand for quite the opposite… But I’ve come to find a lot of dishonesty and malice in the journalism community so I wasn’t surprised. This is what I sent the author… I’m only sharing this because I hope it encourages journalists to resist the click bait trap and tell truly awesome stories because I for one don’t believe journalism is dead— I think it’s just starting and just needs to evolve past the weird corner of the internet where data driven optimization turns everything into smooth brained shocking brain rot bullshit. The technological revolution we are going through should inspire a journalism renaissance. Not let it fall into further decay. There is so much brilliance at play in the world and the stories should be told! My note: “[author name redacted], it was nice talking to you, but I wanted to let you know that I didn’t enjoy your article at all. I understand the need to be inflammatory because that seems to be the only thing that gets clicks these days but that doesnt mean you shouldn’t recognize when something special is in front of you. I trusted our PR team in saying we should offer you the exclusive on what is one of the most important technological developments in the history of Mankind and I deeply regret it. Good luck with the rest of your writing career. -Dar Sleeper”
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Jevons Paradox
The Chief Economist at Indeed just posted that software development job posting growth is outpacing overall job posting growth:
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Jon Radoff 👾/acc 🎮 Metavert retweeted
Replying to @yacineMTB
I was clearly wrong about Anthropic. They are obviously currently the leader in AI. No company has released a model as good as Mythos/Fable and they will undoubtedly have Mythos 2 ready soon. And I would never cut them off in a way that hurt them badly, even as a competitor. That’s not my style. Tesla open sourced its patents and we made the Supercharger network available to all competitors, even though we could have made it a walled garden. SpaceX launches competing satellite systems with no increase in price or use of unfair terms. Even my worst enemies can attack me on this platform. …
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Jon Radoff 👾/acc 🎮 Metavert retweeted
The only long term bottlenecks are information and energy.
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I asked @anthropic Fable to add a fireworks simulator to threelab .metavert .io (my open-source @threejs experimentation platform) and it one-shot it pretty well. Happy Fourth of July! 🇺🇸
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The work on agentic AI tech out of @cloudflare is super impressive
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Not surprising
Two reports from @SamLyman33 and @bitcoinpolicy document a coordinated foreign influence campaign against American AI — running through CCP state media, a Shanghai-based Marxist's nonprofit network, and foreign billionaire dark money that has funneled $2B+ into US advocacy infrastructure. AI doomerism isn't as organic as it looks.
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Ship your strategy!
Learn to ship. Shipping is a skill distinct from coding. Shipping is designing, coding, QAing, story-telling, teaching, marketing, selling, pivoting, iterating… It used to be that coding dominated in importance because of coding ability scarcity. AI will push you to go further.
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Jon Radoff 👾/acc 🎮 Metavert retweeted
Karpathy's prediction about RL is coming true now! He called reward functions unreliable and argued that a single reward number is too low-dimensional to teach an agent what "good" means for complex tasks. To solve this, Agents need a knowledge-guided review as a higher-dimensional feedback channel. Every major AI lab trains models with RL today (OpenAI, Anthropic, DeepSeek). And their key bottleneck has always been the reward functions. GRPO by DeepSeek worked well for math and code because the environment gave a binary signal. But for real agent tasks, someone still has to hand-code the scoring function. That takes days and breaks every time the pipeline changes. RULER (implemented in OpenPipe ART, 10k stars) addresses the exact problem Karpathy identified. The reward criteria are defined in plain English, and an LLM evaluates each trajectory against that description to provide feedback for training. I trained a Qwen3 1.4B agent that plays 2048 using GRPO with this exact workflow. In this case, the agent saw the board, picked a direction, and RULER evaluated the outcome, all from this natural language definition. You can see the full implementation on GitHub and try it yourself. Here's the ART Repo: github.com/OpenPipe/ART (don't forget to star it ⭐ ) Just like RLHF replaced manual rankings and GRPO replaced the critic model, natural language rewards are replacing hand-coded scoring functions. RL reward engineering is now prompt engineering. I wrote a full walkthrough on OpenPipe's ART, the agent RL trainer built on GRPO, including how RULER replaces manual reward engineering with automatic LLM-graded rewards. The article is quoted below.
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Great organization of where scarcity exists in AI
People keep asking me what the bottleneck is, but I've stopped trying to find the bottleneck in AI. There isn't one: there's a current one, and it moves the second you solve it. - we pushed transistor density about as far as it goes -> the gate moved to how you package the chips together - we started solving package area by moving to big glass panels -> the gate moved to keeping the panel flat and drilling clean holes through the glass - we ran copper interconnects out of headroom -> the gate moved to optical, which moved it to the lasers, which moved it to the substrate under the lasers, which moved it to a licensing office in Beijing. Every single time the industry removes a wall, it does not get open road, it gets a new wall, one floor down, almost always somewhere less glamorous and harder to scale than the thing it just fixed. This is the actual shape of the buildout, and once you see it you read every headline differently. The constraint everyone is talking about is, by definition, the one that's already visible and already being attacked. The money is in the next one, the layer that is about to bind while everyone's still celebrating the last fix. So I don't look for the bottleneck anymore. I look for the handoff, the place the pressure is about to move to, because that's where the supply is thinnest and the pricing power is highest right before the crowd arrives. There is no bottleneck, there's a relay race of them, and the trade is always the next runner. (image credits to @renstocks_ )
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Is @midjourney the most amazing bootstrapped company of all time?
Announcing a new division of Midjourney called "Midjourney Medical"
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