Editorial

UK and US sign an AI pact — and fire a torpedo from a robot sub

The Guardrails

UK and US sign an AI pact — and fire a torpedo from a robot sub

Three guardrail stories landed on the same Tuesday, and only one of them came from a government interested in slowing anything down: a defence pact between two allies, a state cabinet in Illinois, and an independent testing institute for children's AI. The UK and the US have launched a joint AI and autonomy partnership to protect critical national infrastructure, in the same week the two countries fired a torpedo from an uncrewed undersea vessel for the first time. The UK government said its Mi

Leaked code names OpenAI's always-on coworker: Aeon

The Arena

Leaked code names OpenAI's always-on coworker: Aeon

Two scoreboards went public on Tuesday and a line of leaked code arrived the same week. Together they say something OpenAI would rather not hear: in the personal-agent race it started, it is now the one catching up. OpenAI is developing features aimed directly at SpaceXAI's Grok Bot, and leaked ChatGPT client code suggests the always-on coworker it is building may be called Aeon. The Information reported that OpenAI is working on features to compete more directly with Grok Bot — the AI teammate

Microsoft gives DARPA on-site access to its Majorana 2 quantum chip

The Arena

Microsoft gives DARPA on-site access to its Majorana 2 quantum chip

Microsoft's quantum bet picked up a federal referee on Tuesday, and the referee's job is to try to prove the company wrong. Microsoft said it will give DARPA direct, on-site access to its latest topological quantum hardware — including qubits built on its Majorana 2 chip — at a new 15,000-square-foot quantum research center in Maryland. The center sits in the University of Maryland's Discovery District near Washington, inside a building the state acquired and renovated with support from Governo

Snorkel AI triples to $3.5B as labs buy environments, not labels

The Arena

Snorkel AI triples to $3.5B as labs buy environments, not labels

The day's money went to the unglamorous half of AI: the datasets and simulated environments that make a model trainable, and the diplomats who want a say in what it is allowed to do. Snorkel AI raised a $350 million Series E at a $3.5 billion valuation, led by Insight Partners and S32 — nearly triple the $1.3 billion it was worth when it raised $100 million seventeen months ago. The company says its annualized revenue run-rate has reached $375 million, an eighteen-fold increase in twelve months

Rabbit's OS3 agent runs on your laptop — and the R1 is done

The Stack

Rabbit's OS3 agent runs on your laptop — and the R1 is done

Rabbit spent two years as the cautionary tale of AI hardware. On Tuesday it started selling the software instead: an agent that runs on the machines you already own. Rabbit has launched OS3, a standalone "agentic operating system" that lives in the cloud but executes work through a local agent node you install on Windows, Mac, or Linux — and founder Jesse Lyu told Wired the company has stopped manufacturing the R1, the pocket gadget that made it famous. The R1 was not, by Lyu's account, a comme

Cyera raises $400M to be the trust layer for enterprise AI agents

The Arena

Cyera raises $400M to be the trust layer for enterprise AI agents

Two bets landed the same afternoon: that the next enterprise security problem is machines holding credentials, and that the next agent runs on the phone in your pocket. Cyera has raised another $400 million, from Growth Equity at Goldman Sachs Alternatives, extending the Series G that valued the data-security company above $12 billion in June. The round takes Cyera's 2026 fundraising to $1.4 billion and its total since June 2025 to roughly $1.94 billion, a figure The Wall Street Journal reporte

Microsoft dismantles EvilTokens, the AI shop selling inbox break-ins

The Guardrails

Microsoft dismantles EvilTokens, the AI shop selling inbox break-ins

Microsoft spent Tuesday taking apart a criminal subscription service that turned business-email compromise into a product. The takedown is one paragraph; the numbers behind it are the story. Microsoft says it led an industry-wide disruption of EvilTokens, a phishing platform that used an AI chatbot to compromise 12,000 Microsoft accounts over a few months. The service launched on Telegram in February at $1,500 up front plus $500 a month, and it did not sell a phishing kit so much as the whole b

Ex-Anthropic lab Mirendil is in talks for $1B at a $5B valuation

The Guardrails

Ex-Anthropic lab Mirendil is in talks for $1B at a $5B valuation

Two stories worth your time: a self-improving-AI lab that quintupled its own price in three months without shipping a model, and malware that now settles its next move by a vote of four commercial LLMs. Mirendil, the lab founded by former Anthropic researchers to build self-improving AI, is in talks to raise about $1 billion at a $5 billion valuation, with Kleiner Perkins negotiating to lead the round, according to Bloomberg. That is five times the price Mirendil set in late June, when it raise

Trump to the UN: no global AI rules, and AI is 'super intelligence'

The Guardrails

Trump to the UN: no global AI rules, and AI is 'super intelligence'

The same podium produced two opposite answers to the same question on Tuesday: whether anyone outside Washington gets a say in how frontier AI is governed. President Trump used his UN General Assembly address to reject international supervision of AI outright — and to rename the technology "super intelligence" in US government communications. Trump told the assembly that the United States "totally rejects any attempt to construct a globalist scheme to control... artificial intelligence," and sa

OpenAI halves GPT-6 Sol and Luna prices hours after Anthropic's cut

The Frontier

OpenAI halves GPT-6 Sol and Luna prices hours after Anthropic's cut

Two frontier labs spent Tuesday afternoon arguing about the same thing — not who is smartest, but who costs least per task. OpenAI cut API prices for GPT-6 Sol and Luna in half on Tuesday, hours after Anthropic cut Opus 5.5 pricing by 40%. Sol drops to $2 per million input tokens and $10 per million output, from $4 and $20; Luna goes to $0.10 and $0.50 from $0.20 and $1.20, measured against the promotional pricing of the GPT-5.6 versions they replace. OpenAI attributes the cut to better prompt

Toyota wants 400,000 factory robots trained by its own workers

The Everyday

Toyota wants 400,000 factory robots trained by its own workers

Toyota is rebuilding its factories around robots it built itself, and the teaching method is its own workforce. China's chip makers spent the same week arguing that the model belongs on the device, not in a data centre. Toyota wants 400,000 factory robots — and its own workers are the training set. The Toyota Motor group plans to put 400,000 in-house-developed robots into production sites worldwide as its factories are rebuilt, Nikkei Asia reported, with the automaker pitching the result as fa

a16z opens a $42M tuition-free academy as a college alternative

The Arena

a16z opens a $42M tuition-free academy as a college alternative

Andreessen Horowitz spent Tuesday arguing that the pipeline into AI work needs rebuilding from the school up — and put $35 million behind the claim. a16z launched the Horowitz Andreessen Academy, an unaccredited San Francisco program that trades degrees and homework for a year of building, and started taking applications the same day. The firm contributed $35 million of the $42 million raised; the other $7 million came from founding partners that read like a frontier-industry roster — Anduril,