A safety alarm rings at Anthropic, days before its IPO. Who is listening?

Yesterday, Anthropic set its IPO price range, up to an implied $1.404 trillion. Now a headline shared on r/artificial says Anthropic itself reports that 'a key AI safety alarm has been triggered, days before its IPO.' Our sources give only the headline. They do not say which alarm, what triggered it, or what Anthropic plans to do. So, for now, the details are unknown.

The timing is heavy. Anthropic started its IPO roadshow on Tuesday, the tour where a company pitches its shares to investors. Simon Willison notes the roadshow video shows Claude is trained and served on four kinds of chips: AWS Trainium, Google TPUs, Nvidia GPUs and AMD GPUs. The AI Daily Brief podcast argues that Wall Street has no idea what Anthropic is worth.

This also connects to last Sunday's METR report, which said Anthropic's models now improve about twice as fast as a year ago. Watch for a public explanation before the shares are priced.

Hugging Face is the big public library where people share open AI models. Transformer reports that it appears to host many models that could be used for cyberattacks. The platform removed one model marketed for attacks, but plenty of others remain.

Fireworks AI, an Nvidia-backed company that runs AI models for customers, notified customers of its second hack in weeks, according to a headline on r/artificial. Our sources give no details on what was taken. On the defense side, Fortinet patched nearly 100 vulnerabilities after adding AI models to its security testing. And Simon Willison fixed a bug in his LLM tool (version 0.37.2) that could send your OpenAI API key to another provider by accident.

Last Saturday, we saw hundreds of AI hacking tools left open on the internet. Same family of risk, new places. Attack tools get easier to find, and incidents keep coming in a row.

Last Friday, we saw agents move into our banks, jobs and trips. Now one airline pushes back. United says it won't let personal AI assistants book tickets, citing privacy and regulatory concerns, The Wall Street Journal reports. United says few people try it yet, like DoorDash has also seen. The story got 556 points and 547 comments on Hacker News.

The big question is permission. China introduced standards in 2026 for how agents identify themselves, talk to each other and access services. One example: an agent allowed to fill a shopping basket is not allowed to pay unless the user agrees.

On GitHub, a new project called pinky lets AI agents use your phone, with you in the loop to approve. It got 1,937 stars in its first days.

A blog post titled 'My AI agents found an unmapped Maya site?' got 990 points and 361 comments on Hacker News. Note the question mark: our sources include no confirmation from archaeologists, so it is a claim for now.

Scientific American reports that experts appointed by OpenAI, called 'shepherds', verified its AI-generated proof of the 'existence' of quantum Yang-Mills theory. It is a foundation of the Standard Model of particle physics, and one of the million-dollar math problems. Google DeepMind also unveiled AlphaGenome 2. It studies how changes in our DNA affect different cells, which could give clues about disease and new treatments.

The next step for the physics proof is wider review by the scientific community.

AWS released an official emulator: a local copy of its services, so developers can test without paying for the real cloud. It got 848 points on Hacker News. Simon Willison notes it was written in Rust by a huge swarm of agents, with 29,684 commits in the first three weeks. A guest post by Swami Sivasubramanian on Werner Vogels' blog asks what the engineer's job becomes when agents write the code.

Other companies are already changing. Manus scrapped traditional coding interviews, cut engineer hiring to half its peak, and now has product managers writing code. In indie games, the studio Big Walk used AI to fix a bug, and many festival judges say any AI coding is too much. A Reddit post also says UK companies are scaling back hiring after overspending on AI.

Yesterday we asked if AI makes code fragile. Today the question is who reviews 29,684 commits.

TechCrunch reports OpenAI's quarterly revenue crossed $10 billion for the first time, an almost 50% jump from $6.7 billion in the second quarter. At the same time, Taiwan's chip giant TSMC will invest $1 billion in Anthropic and OpenAI. Ars Technica calls it the latest example of 'circular financing': suppliers investing in the customers who buy from them.

There are signs of strain. CoreWeave, which rents AI computing power, now asks customers to pay up front and borrows against specific contracts. A post with 157 points on Hacker News argues that retirement savings are fueling an AI bubble. TechCrunch adds that many announced data centers may never be built.

After Saturday's 41 ballot measures, the data center fight grows. Republican Senator Josh Hawley now backs a nationwide data center moratorium, a pause on new building, Politico reports.