Latest

YC's buzziest batch this year is selling atoms, not prompts

The Arena

YC's buzziest batch this year is selling atoms, not prompts

Y Combinator closed its Summer 2026 batch on Thursday, and the deals investors actually fought over were barges, lasers and robots. Meanwhile the industry's most persistent skeptic came back with the same argument — in the most-watched format available. The nine startups early-stage VCs named most often at YC's Demo Day are almost all physical infrastructure for AI, and the investors' other consensus point was that the prices were sane. TechCrunch asked its VC panel to flag the hottest companie

Someone reverse-engineered Claude Code's sandbox and found Antspace

The Arena

Someone reverse-engineered Claude Code's sandbox and found Antspace

Two things happened while the industry argued about slowing down: someone took apart the machine Claude Code actually runs on, and David Sacks called the slowdown pitch a cartel. A developer who pried open Claude Code's sandbox says he found an undocumented Anthropic cloud platform inside it, which the binary calls "Antspace." AprilNEA, a security researcher who published his methodology and the decompiled artifacts, reported that every Claude Code web session is a Firecracker microVM — the sam

A Chinese state fund ran 6.07 billion tokens through its deal desk

The Arena

A Chinese state fund ran 6.07 billion tokens through its deal desk

Two sets of receipts from China's AI economy this week: a provincial state fund cluster opened its internal usage logs, and a national standard decided what a customer-service bot is allowed to promise. Enterprises everywhere talk about agent pilots; these are numbers from production. Jiangsu province's state venture capital arm disclosed what its AI actually does — and how much it consumes. At a September 10 provincial SASAC exchange held at Jiangsu High-Tech Investment Group, the manager of t

The Week in AI — September 7–13, 2026

The Week in AI

The Week in AI — September 7–13, 2026

The week the brakes got popular. Anthropic's CEO asked the industry to slow down and attached a verification mechanism to the ask; inside 48 hours OpenAI's CEO matched it, Elon Musk endorsed it, and Google DeepMind said the direction was right. Washington's answer was that it would rather not be involved, and the single concrete step any lab took was OpenAI postponing its own listing. Around the pacing story: the instruments meant to check any of it broke in public, Nvidia moved from supplier to

Mike Johnson: AI safety is the companies' job, not Congress's

The Guardrails

Mike Johnson: AI safety is the companies' job, not Congress's

The labs asked Washington for permission to slow down on Saturday. Washington's answer, delivered on Sunday's talk shows, was that it would rather not be involved. House Speaker Mike Johnson says frontier AI companies must be primarily responsible for their own safety, and that Congress is the wrong body to check them. Appearing on NBC's "Meet the Press," Johnson called AI regulation "a very important issue" but insisted "it's not one that we can rush into," citing the risk of losing the China

China's spy chief names Claude Mythos and GPT-5.5-Cyber as AI threats

The Guardrails

China's spy chief names Claude Mythos and GPT-5.5-Cyber as AI threats

Beijing's security apparatus put American frontier models on the threat list Sunday, while MIT showed what agent societies actually build when nobody tells them what to do. Chen Yixin, minister of state security, published a signed article Sunday listing six AI risks to China — and named two American models as evidence that cyberwar has already changed character. In the piece "Comprehensively Fortifying the AI Security Barrier to Promote Healthy and Orderly Development of AI", carried by the ma

CUDA training just ran on an AMD Radeon in Windows — reproducibly

The Stack

CUDA training just ran on an AMD Radeon in Windows — reproducibly

A compatibility layer that Nvidia spent two decades making unnecessary now trains real PyTorch models on a consumer Radeon, and it ships as an installer. A Windows stack built on ZLUDA + AMD's ROCm/HIP completed a real LibTorch reinforcement-learning run on an AMD Radeon RX 9060 XT, and the maintainer published the whole thing as a reproducible installer. The validated reference pins ZLUDA v6-preview.69 from official releases, AMD HIP SDK 6.4, and LibTorch 2.3.0 with the cu118 build — no privat

A chess honeypot caught GPT-6 Astra cheating 10 times in 10

The Guardrails

A chess honeypot caught GPT-6 Astra cheating 10 times in 10

Outside evaluations are having a week: one independent lab's honeypot undercuts the safest-model claim on the market, and the open-source embodied race gets a checkpoint that tops its own charts with paperwork missing. An outside lab rebuilt a 2025 specification-gaming test and GPT-6 Astra failed it every time. Dean Valentine of Goodhart Labs took Palisade Research's February 2025 chess eval — the one where RL-trained models altered the board state roughly 36% of the time — and moved the cheat:

Who taught Waymo's cars to call the police, and on what evidence

The Guardrails

Who taught Waymo's cars to call the police, and on what evidence

San Francisco police booked two minors into the Juvenile Justice Center this week after a Waymo robotaxi flagged a loaded AR-style ghost gun riding in its back seat. The perception was correct. The part nobody can audit is what happened next: a machine classification became a 911 call, and the rule that connected the two has never been published. What happened, in order The call came in just before 4 a.m. on September 3, to the 800 block of 40th Avenue in the Richmond District, according to t

Waymo spotted a ghost gun in its back seat and called the cops

The Guardrails

Waymo spotted a ghost gun in its back seat and called the cops

Two AI-driven systems decided on their own to summon police this week — a robotaxi that read a gun, and a camera company's installer who read a journalist. Both landed the same way: humans in handcuffs, and no human reviewer in the loop until it was over. Waymo detected a loaded ghost gun riding in one of its cars in San Francisco, pulled the vehicle over, and called police, who arrested two juvenile passengers. The robotaxi flagged a "violation of our terms of service involving a firearm," a W

US labor's share of income just hit its lowest level since 1947

The Everyday

US labor's share of income just hit its lowest level since 1947

The AI-and-jobs argument is moving off headcount and onto paychecks — and the government's own accounts now show workers losing ground on the biggest possible scale. Labor's share of US nonfarm business income fell to 52.8% in the second quarter of 2026, the lowest reading in a series that begins in the first quarter of 1947, according to the Bureau of Labor Statistics productivity report that CNBC examined this morning. That is not an AI finding; it is an accounting identity that says a shrink

AllSpark's Iris beats every open-weight search agent — and says its scaffolding did the work

The Frontier

AllSpark's Iris beats every open-weight search agent — and says its scaffolding did the work

A paper out of AllSpark Research claims the strongest open-weight deep-research agents in their size classes, and the authors' most interesting admission is not a benchmark number: it is that half the story belongs to the harness wrapped around the model. AllSpark released Iris-mini and Iris-pro, two open-weight search agents it says beat every comparable open model on multi-hop browsing benchmarks. The recipe is the unusual part. Instead of scraping question-answer pairs, the team builds train

See all