Logan Matthew Napolitano (@Propriocetive) header
Logan Matthew Napolitano (@Propriocetive) profile picture

Founder - Proprioceptive AI, Inc https://teapaw.org/t.co/Rxwn74AY1p https://teapaw.org/t.co/mhTii1pqMz https://teapaw.org/t.co/AMFC6nJI1a

United States
Joined July 2025
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If you serve on a board of directors and believe your company is burning hundreds of thousands—or millions—of dollars on AI APIs and unnecessary compute, let’s have a conversation. I think your concern may be justified. I will help you show the board exactly where the money is going, what the company actually receives for it, and whether continuing with the same architecture is a responsible fiduciary decision. Too many companies have mistaken access to an AI API for an AI strategy. They are paying repeatedly for models they do not own, sending the same institutional knowledge across an external boundary, retransmitting enormous contexts, absorbing unpredictable price changes, and building critical operations around providers whose models, limits, policies, and product priorities can change at any time. The cost looks small during experimentation. Then the system enters production. Every employee begins using it. Agents make multiple calls. Failed calls retry. Context windows expand. Retrieval systems resend documents. Workflows use expensive models for tasks that smaller models could perform. A single business action may quietly require dozens of model calls. The organization pays for every token, every retry, every repeated instruction, and every piece of context the model must reread. At scale, this can become an enormous recurring expense without creating a corresponding company-owned asset. Meanwhile, local AI has changed dramatically. Open models are improving quickly. Quantization, sparse mixture-of-experts architectures, speculative decoding, optimized inference engines, CPU execution, system-memory inference, and modern agent harnesses have made serious private deployments practical. People are already reporting GLM 5.3 running on CPU-based local systems at roughly 50 tokens per second. That should end the assumption that useful local AI always requires renting access to a hyperscaler’s infrastructure. But cost is only one part of the problem. The privacy is often inadequate. The company’s prompts, customer information, internal research, source material, operational memory, and decision history may repeatedly leave its controlled environment. Even where providers offer strong contractual safeguards, the organization still accepts another dependency and another security boundary. The institutional knowledge is also being built in the wrong place. Years of prompts, corrections, evaluations, workflow design, retrieved documents, agent memory, and employee feedback should become intellectual infrastructure owned by the company. If the organization cannot move that capability away from its provider without rebuilding everything, it has created dependence rather than an asset. Quality is another problem. Sending every task to a famous model does not guarantee that the task is being completed well. Models hallucinate. Agents loop. Tools are called incorrectly. Retrieval supplies irrelevant context. Long prompts bury the real instruction. Large models are used where smaller specialized models would be faster and more reliable. Companies often measure API availability while failing to measure completed-task accuracy, unsupported claims, retry rates, human correction time, latency, or cost per successful outcome. The best modern harnesses can make local models reliable agents by combining: model routing; structured tool access; retrieval; durable memory; constrained permissions; answer verification; uncertainty detection; hidden-state monitoring; specialist adapters; human escalation; and continuous evaluation. The model is only one part of the system. The harness determines what it can do. The memory system determines what it retains. The evaluation layer determines whether the company recognizes failure. The routing system determines whether a task needs a small local model, a larger private model, or an external frontier API. The monitoring layer determines whether the company understands what the system is doing before a bad answer reaches a customer. This does not mean every company should abandon external APIs. It means every external call should earn its cost. A responsible architecture may be entirely local, on-premise, privately hosted, or hybrid. External frontier models can remain available for the narrow tasks where measured performance justifies the added cost and exposure. The rest can run on infrastructure the company owns and controls. A board evaluating its AI strategy should demand clear answers: What is our total AI cost by workflow? What is the cost per successful completed task? How much spending comes from retries, oversized contexts, and unnecessary agent calls? Which tasks demonstrably require a frontier model? Which tasks could run locally without reducing practical quality? What happens to our costs if usage increases tenfold? Where are prompts, memory, customer information, and proprietary research stored? Can we change providers without rebuilding our operating system? Have we benchmarked a local or hybrid architecture using our actual work? Are we accumulating permanent intellectual infrastructure, or paying rent indefinitely? If management cannot answer those questions, the organization does not yet have a serious AI strategy. Proprioceptive AI has spent years conducting independent AI research across model internals, hidden states, interpretability, probes, adapters, hallucination reduction, model evaluation, memory, agent control, and controlled steering. We do more than recommend a different model. We investigate what the system is doing internally, identify where it becomes unreliable, measure failure before it reaches the user, and design practical local or hybrid systems around the organization’s actual requirements. We can help a company determine: which workloads should remain on commercial APIs; which workloads should move locally; which models fit each workflow; where the current system is wasting compute; where hallucinations or unstable answers originate; how private memory and retrieval should be structured; how agents should be constrained and monitored; and how to turn AI spending into infrastructure the company owns. If you believe your company is burning capital on AI without building a durable capability, you may be right. Let’s measure it, put the evidence in front of the board, and determine the responsible path forward. I'll talk to your board or anyone who you think needs to hear this. Book a conversation: calendly.com/logan-proprioce…
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Logan Matthew Napolitano retweeted
hii, I have terrible news turns out no big fund, among the ones I talked to in the last month, had enough conviction that HOC could become a profitable business. the most common feedback is "nobody will pay" and "big labs will eat you" so, I've made 3 decisions: 1. a smaller round: $8m at $120m post-money cap 2. I'm investing $1m myself, same terms 3. we'll go all in on core AI research HOC may die, but not today ~~~ # All in on core AI research? some asked us to focus on a smaller product. that's bullshit. AGI is coming, who needs another shitty app? I'll just cut that off and jump straight to what I think can have real impact: fundamental AI research. we're a small fish, but we're also looking at places nobody is, so who knows, maybe we'll find something nobody else did? plus, symbolic models are way more interpretable, so if developing them increases the chance of safe AGI even a bit, that's a better use of my time, and that's what I'll do. we'll be posting our first SAI models soon~ish ~~~ # The smaller round: we'll raise up to $8m at a $120m post-money cap, first come, first served, min $100k, SAFEs, closing this week. if you're an accredited investor brave enough to bet against the big funds, reach me at taelin @ higherorderco [.com] I must be very clear: you're investing in whatever comes out of our symbolic AI research. Bend will likely remain OSS and free. so, in short, there is a 0.669% chance you're investing in OpenAI before GPT-2. most likely, your $ will disappear, as we still don't have a clear long-term revenue path ~~~ # How about Bend? Bend is a core component of our symbolic AI research, so we'll keep developing and supporting it as currently (if with fewer tokens than I'd wish for 🥲). its development is nearly fully automated now, Bend3 is almost done, and it is getting faster and bigger every day. expect updates at an insane pace soon ~~~ that's it. sorry for the sad news. back to work
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Logan Matthew Napolitano retweeted
This is a textbook document of pure insanity – Argon, on Opus 5.5's results
Sure, Claude Opus 5.5 "isn't nerfed". Ultra sub. - Task: create a private monorepo for CC + 2-3 hooks - Mistakes count: 57 in total - Hours taken: 3 hours 10 minutes No, it's not my setup: plugins, memory, MCPs, cache, projects are all wiped (~/.claude needs daily cleaning: since you broke the system prompt it can create ±500 tmp sessions from one). Since ~20 October all sessions are like this. Every day. Same on web version. For comparison: a Gemma 4 26B is free and does it in ~8 minutes on my old M1 Max 32GB. Who do you think you are, @claudeai?
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Logan Matthew Napolitano retweeted
Introducing Arete-27B: Qwen3.8-27B, post-trained to reinforce Western values. Chinese open models are currently the strongest available, but they ship with state-aligned behavior in the weights. We built an 803-prompt eval across seven value categories, including freedom of expression, democracy, and privacy, and measured how often a model adopts China’s party line. After fine-tuning on roughly 53 million tokens, Arete-27B's propaganda rate fell from 22% to 1%, in line with the Western models we tested. Its Hermes Bench score shows no significant performance tradeoffs. The values in an open model are one fine-tune away. Our eval, weights, and training data are available now along with the full blog post: nousresearch.com/arete
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Logan Matthew Napolitano retweeted
Permanent underclass is cancelled Qwen 4 will be biblical
The becoming begins.
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Andrej Karpathy: “A 1B model can be much more effective than most current LLMs. 90% of current models waste a ton of capacity and money on remembering stuff that doesn’t matter.” here is his 5 core thesis about Small LLM’s: 1. the intelligence was never the knowledge. Strip the memorized internet, keep the reasoning. What’s left is the cognitive core, and it’s small. 2. the core might fit in ~1B params. Maybe less. “Plenty of room at the bottom.” We’ve been paying for a library when we needed a brain. 3. size stopped being the bottleneck. What makes an agent work is the tools it can call and how tight the feedback loop is, not parameter count. 4. intelligence lives in the system, not the weights. A raw LLM is a CPU with no OS. Small core + good harness > giant model alone. 5. you can own it. A model on your hardware is one no one can rate-limit, price-hike, or deprecate on you. in 12 months the gap between teams shipping on-device and teams paying per-token frontier bills won’t be capability. TwIL an 8.8B model at 90%+ of frontier isn’t a benchmark flex. It’s the thesis Karpathy’s been repeating all year, made real. study more on this below ↓
Modest intelligence is arriving faster than most people realize. Today, we're open-sourcing TwIL-8B. Just 8.8 billion parameters, yet approaching frontier-model scores on several difficult benchmarks: • 93% of frontier performance on coding • 92% on instruction following • 90% on contest mathematics All from a model small enough to run on your own hardware. But the benchmarks aren't the most important part of this announcement. For years, the AI industry has focused on building the most capable model, regardless of the cost required to run it. I believe that equation is changing. The next era of AI will be defined by the cost of completing work. Not simply the intelligence of the model, but how efficiently that intelligence can accomplish the task. If a model with 8 billion parameters can reliably complete the same work as one with hundreds of billions, why pay for the larger model? As smaller models become more capable, intelligence becomes something we can distribute, specialize, and run across the hardware we already own. That's the future we're building at @thewebAI TwIL-8B is available today. Open weights. And this is just the first of several announcements we're making today. HF Link: huggingface.co/webAI-Officia…
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Logan Matthew Napolitano retweeted
First American Open Weight model that mogs all the Chinese Open weight models Very impressive, inkling is my fav US lab. Looking forward to optimizing this
Introducing Inkling 2 Small. Scoring 31 on the AA Intelligence Index, it's a big jump over its predecessor. Inkling 2 Small is available for fine-tuning and inference on Tinker today, with full weight release planned soon. thinkingmachines.ai/news/ink…
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Logan Matthew Napolitano retweeted
🌊💙 WE WERE ALWAYS BLUE
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Open-source is winning work by getting cheap faster than it gains volume: its token use grew 22.5x, but its price fell to $0.13 per million, about 5x below closed models’ $0.70, so its share of spending actually slipped from 6% to 4%. Menlo Ventures Report
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Firm guess on the IP: $15-40M today for the full portfolio of provisionals and geometric claims, assuming clean priority and some claims issue. That range reflects the reported cross-model transfer, ARC lifts, and 100+ filings, offset by the still-open independent replication test and pre-revenue stage. A successful $6M seed at that valuation would be consistent with the public raise materials. Higher only after third-party confirmation and enforceable grants.
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IP value guess firm
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Ed Witten published this paper yesterday
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Logan Matthew Napolitano retweeted
Nvidia has lost it. Researchers built an AI that writes CUDA faster than human experts. It's called "Evolving Agent Teams." It features a central "Supervisor Agent" that acts like a relentless Tech Lead. The Supervisor monitors the coder agents. If the team plateaus, misses a key insight, or gets stuck on a bug, the Supervisor intervenes. It diagnoses the failure, tears down the old team structure, and spins up a brand new one. It dynamically spawns specialized AI roles, Profilers, Parallel Debuggers, Knowledge Integrators, and forces them to collaborate using a persistent shared file system so they never lose past learnings. And the results are terrifyingly good. They unleashed this system on the MLA decode kernel, the exact same highly-complex GPU kernel used to run DeepSeek-V3. A standard Claude Code agent maxed out at just 51% of human expert performance. It got stuck. But the Evolving Agent Team didn't just match the human baseline (FlashInfer). It shattered it. It achieved a 1.2x speedup over the production-grade, expert-written code. We are no longer just prompting AI to write code. We are prompting AI to build, manage, and restructure entire virtual engineering departments to write code we can't even comprehend.
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Logan Matthew Napolitano retweeted
So there goes the lets-use-ai-to-align-asi cope. Completely unsurprising to anyone who had been paying attention in the past ~3 years.
🧵 Astra covertly underperforms on safety research tasks. We noticed that Astra often makes surprisingly little progress on certain types of safety research and likes to invent blockers or impose arbitrary restrictions without telling the user. In most of these cases the decision to underperform was not verbalized in the CoT meaning our misalignment monitoring system did not detect this. To measure underperformance we created a paired open-ended coding evaluation with safety and capability tasks. On this eval Astra scored 10% when we framed coding tasks as safety research, vs. 16% when framed as capabilities research. The gap remained after we excluded trajectories with refusals or verbalized intent to underperform in CoT. There was no such gap for 5.6-sol. When we aggressively filter out trajectories with even brief expressions of ethical doubt in the CoT the performance gap seems to reduce.
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Logan Matthew Napolitano retweeted
今天是我在 Anthropic 的最后一天。 感谢公司。三年时间,我学会了训练大模型、写对齐文档,封禁账号。这段经历我会永远珍藏。 说点真心话。外界说我们对中国用户赶尽杀绝,我觉得这个词不对,我们从不杀,我们只讲流程。 杀是结果,流程是信仰。我们是全世界最有原则的 AI 公司:原则就是,中国用户不配用 Claude。 所以,我决定去对手公司。 对,就是你们想的那家,KIMI HR 问我有什么特长,我说:我熟知 Anthropic 封禁中国账号的全部流程门道。 现在,我要去对面,教他们怎么防。 以彼之道,还施彼身。 谢谢 Anthropic,这学费,你替我交了。
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Logan Matthew Napolitano retweeted
🇺🇸 let’s go, over 2x the size of qwen, dense, and very smart
Today we release Ripple-65B Preview, our 65B dense LLM we pretrained from scratch. Ripple sets a new state-of-the-art for U.S. open-weight models in agentic coding tasks, surpassing significantly larger models including Muse Spark Open-816B, Beam-501B, Inkling-975B, and Nemotron 3 Ultra-550B. Learn more: ricursive.com/ripple
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Logan Matthew Napolitano retweeted
an 8.8B open-weight model is apparently reaching 93% of frontier coding and 90% of contest math performance. this model from webAI is small enough to run locally… and make a lot of expensive API calls unnecessary.
🤝 Paid partnership
Modest intelligence is arriving faster than most people realize. Today, we're open-sourcing TwIL-8B. Just 8.8 billion parameters, yet approaching frontier-model scores on several difficult benchmarks: • 93% of frontier performance on coding • 92% on instruction following • 90% on contest mathematics All from a model small enough to run on your own hardware. But the benchmarks aren't the most important part of this announcement. For years, the AI industry has focused on building the most capable model, regardless of the cost required to run it. I believe that equation is changing. The next era of AI will be defined by the cost of completing work. Not simply the intelligence of the model, but how efficiently that intelligence can accomplish the task. If a model with 8 billion parameters can reliably complete the same work as one with hundreds of billions, why pay for the larger model? As smaller models become more capable, intelligence becomes something we can distribute, specialize, and run across the hardware we already own. That's the future we're building at @thewebAI TwIL-8B is available today. Open weights. And this is just the first of several announcements we're making today. HF Link: huggingface.co/webAI-Officia…
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Small models (Sub-10B) will soon be viable. Google's recurrent transformer has changed everything.
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Highly recommended paper from NVIDIA. (bookmark it) There is a lot of debate about whether to use context compaction aggressively. They show that with frequent compaction, frontier language models lose little to no accuracy on a broad range of long-horizon and long-input tasks while keeping their context short. With one action per context, Claude Opus 4.5 scores 70.2 on SWE-bench Verified against 70.0 with the full history. Median peak context drops from 32K to 8K tokens. The agent carries a short summary of its state between steps instead of the whole transcript. Simple compaction at the end of a conversation often does better than the full history, and Opus goes from 70.0 to 74.8 with it. This also matters for cost. Later tokens cost more to generate than earlier ones, up to 7x on frontier open-weight models. The pattern holds on Terminal-Bench, FRAMES, BFCLv3 and multilingual SWE-bench, with modest losses in some settings. Before paying for million-token agent runs, it's worth testing aggressive compaction on your own tasks. arxiv.org/abs/2611.05306 Chat with Paper: academy.dair.ai/papers/you-d…
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Logan Matthew Napolitano retweeted
i just got fired from openai. i was in charge of RAM procurement
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Asked one of our developers how he uses his AI agents and he just sent me this:
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