AI Today: Anthropic Ships and Buys Texas

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Anthropic had a two-part week: a model that costs less to run, and $35 billion committed to the hardware to run it on. Meanwhile Brussels decided ChatGPT is a search engine, which sounds like a taxonomy quibble and is actually a compliance deadline.

Model Releases

Anthropic’s Claude Fable 5.1 and Mythos 5.1 arrive with a 75% cut to cache reads Fable 5.1 shipped September 1 holding Fable 5’s $10/$50 per million input/output tokens, but cache reads drop from $1.00 to $0.25 per million — the line item that dominates long agentic sessions, where the same context gets re-read hundreds of times. Anthropic claims real bills fall 25% for typical work and up to 45% for heavily agentic tasks. Benchmarks moved more than the version number suggests: Terminal-Bench-Science 0.1 goes from 24.7% to 52.6%, Terminal-Bench 4.0 from 42.0% to 55.8%, AutomationBench from 17.1% to 31.4%. It’s live on the Anthropic API as claude-fable-5-1 plus AWS, Google Cloud and Azure. Mythos 5.1 is the same underlying model with looser safeguards, gated to vetted cybersecurity and life-sciences organizations.

Runway’s Solaris generates software interfaces frame by frame, with no code underneath Built on Runway’s Gen-4.5 video model, Solaris renders a working-looking interface at 720p and responds to clicks, drags and voice — the picture is the app, because nothing is compiled. Runway calls it the first of its “Interface World Models.” The honest part is the limitations list: text rendering is unstable, long sessions are unproven, there’s no screen reader support, and it can produce confidently wrong output. It’s an early-access research project, not a product — The New Stack has the fuller writeup.

Infrastructure

Anthropic signed a $35 billion cloud deal with Nvidia-backed Lambda Six years, roughly 350 megawatts, in Nueces County, Texas. The structure is the interesting part: Hut 8 — a former bitcoin miner — develops the campus, Nvidia holds the lease, Lambda installs Nvidia chips and sells the capacity to Anthropic. TechRepublic reports Hut 8’s side is two 15-year leases covering 704 MW at $19.6 billion of base contract value. It lands days after a reported $45 billion Nscale commitment in West Virginia, and it says something specific about the market: the scarce thing is no longer GPUs, it’s powered, financed, ready-to-run buildings.

Policy & Regulation

The EU designated ChatGPT a Very Large Online Search Engine On August 31 the Commission brought ChatGPT, Reddit and Roblox under the Digital Services Act’s strictest tier — ChatGPT as the first AI chatbot classed as a search engine, on the reasoning that it answers queries by searching the web. Euronews reports about 159 million average monthly EU users for ChatGPT against a 45 million threshold, with Reddit at 57.2 million and Roblox around 48 million. They have four months to run annual systemic risk assessments, submit to independent audits, and open data to regulators and vetted researchers. Penalties top out at 6% of global annual turnover. The Commission’s own page says compliance is due “by January 2027”; Euronews says November 30 — I can’t reconcile the two, so treat the deadline as roughly year-end.

Skipped as already covered: the Pentagon adding ChatGPT Mil and Grok to GenAI.mil, and Clay’s $7B round, both of which I wrote up yesterday. I left out OpenAI’s Hugging Face agent-escape report — genuinely significant, but the incident was July and the report landed August 26, outside the window. I also passed on Qwen3.8-max-0902, a dated hosted snapshot of the August model rather than a new release, and on an aggregator’s claim about a Solaris user-preference study that I couldn’t confirm in any source I read.

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