Scan every signal, then open the 2-minute brief before jumping to the original source.
PSSA: A non-transformer language model written from scratch in Rust — from Hacker News front page
Why this matters
AI angle: PSSA: A non-transformer language model written from scratch in Rust — from Hacker News front page Check the original before changing a build, vendor, or research decision.
For months, people have wondered when OpenAI will go public. CEO Sam Altman says it won't happen until the company can make better promises about model safety, with no firm timeline in sight. "We intend to continue with…
Why this matters
The Verge angle: For months, people have wondered when OpenAI will go public. CEO Sam Altman says it won't happen until the company can make better… Check the original before changing a build, vendor, or research decision.
Before OpenAI launched its new AI agent, Dots, on Tuesday, Elon Musk's xAI had already acquired the domain name "dot.com," which now redirects to the Grok chatbot download page.
Why this matters
TechCrunch angle: Before OpenAI launched its new AI agent, Dots, on Tuesday, Elon Musk's xAI had already acquired the domain name "dot.com," which… Check the original before changing a build, vendor, or research decision.
OpenAI is building out the pieces of an alternative to the traditional app store model, turning ChatGPT into a place where software can be discovered and used by people and AI agents alike.
Why this matters
TechCrunch angle: OpenAI is building out the pieces of an alternative to the traditional app store model, turning ChatGPT into a place where software… Check the original before changing a build, vendor, or research decision.
OpenAI isn't a public supporter of Nvidia's Open Agent Safety Platform, but it is privately working with Nvidia, TechCrunch has learned.
Why this matters
TechCrunch angle: OpenAI isn't a public supporter of Nvidia's Open Agent Safety Platform, but it is privately working with Nvidia, TechCrunch has… Check the original before changing a build, vendor, or research decision.
My comment on GPT 6.1 Sol: Near-Astra intelligence for a fifth of the price — Hacker News. I'm a bit late with the pelicans because I was live-blogging the keynote: https://simonwillison.net/2026/Sep/29/openai-dev…
Why this matters
ai angle: My comment on GPT 6.1 Sol: Near-Astra intelligence for a fifth of the price — Hacker News. I'm a bit late with the pelicans… Check the original before changing a build, vendor, or research decision.
Robots deployed in the physical world must be able to improve beyond their initial training as they encounter new situations and failures. For this improvement to scale across tasks, it must make effective use of experi…
Why this matters
ArXiv angle: Robots deployed in the physical world must be able to improve beyond their initial training as they encounter new situations and… Check the original before changing a build, vendor, or research decision.
As agents take on longer and more complex problems, controlling the execution becomes a task in its own right. Each step in the run brings new control choices, like which partial work to build on, whether to start fresh…
Why this matters
ArXiv angle: As agents take on longer and more complex problems, controlling the execution becomes a task in its own right. Each step in the run… Check the original before changing a build, vendor, or research decision.
Agent performance depends on both reasoning ability and the environment in which it acts. We study test-time AI-for-AI, asking how a Builder can learn to construct better execution environments for a Target while both m…
Why this matters
ArXiv angle: Agent performance depends on both reasoning ability and the environment in which it acts. We study test-time AI-for-AI, asking how… Check the original before changing a build, vendor, or research decision.
A small trainable advisor can steer a frozen language-model executor using natural-language advice. In addition to learning from task rewards, the advisor can use feedback from completed interactions to improve its advi…
Why this matters
ArXiv angle: A small trainable advisor can steer a frozen language-model executor using natural-language advice. In addition to learning from… Check the original before changing a build, vendor, or research decision.
Mixture-of-Experts (MoE), popularized by large language models, is a promising paradigm for scaling visual generative models. However, conventional token-wise MoE routes tokens independently within a homogeneous expert…
Why this matters
ArXiv angle: Mixture-of-Experts (MoE), popularized by large language models, is a promising paradigm for scaling visual generative models… Check the original before changing a build, vendor, or research decision.
Large language models (LLMs) enable agents to solve long-horizon tasks by generating a plan and then executing it in an environment. However, successful planning requires two distinct capabilities: selecting an appropri…
Why this matters
ArXiv angle: Large language models (LLMs) enable agents to solve long-horizon tasks by generating a plan and then executing it in an… Check the original before changing a build, vendor, or research decision.