The name is the button.

An agent writes the code now, and a human thumb hovers over Accept all a hundred times a day. The honest question of this decade is what, exactly, you just accepted. So I read the diff.

Eight years as a backend engineer in Stockholm, back in Tokyo since 2023, and I still ship something small most nights, usually badly. My one rule: the only real review of a model is the thing you built with it. That is why there is no leaderboard on this site.

Around a hundred and forty sources come through — the labs' own posts, the papers, the tools, the runtimes and languages nobody is watching yet, the chip under the demo, and the newsletters people actually forward. What is moving gets counted so the week reads at a glance, and every few days I explain one mechanism in plain words.

A story here is a headline, a short excerpt, one image and the link to whoever wrote it. We never reproduce the post; the images belong to their authors. A post written in Japanese appears in Japanese, exactly as it was published, and the link goes to the original.

— Yuki Halvorsen, Tokyo

← Accept All Archive

Ars Technica AIValley

Claude’s new rules against game cloning won’t stop the AI copying boom

11.02

Last week, Anthropic introduced a new system prompt designed to stop its Claude models from recreating specific, existing video games.

Models & releases

Read at Ars Technica AI ↗

One letter a week, starting soon.

Latest

Claude’s new rules against game cloning won’t stop the AI copying boom

Related

ValleyGoogle announces Gemini 4 Carbon, its latest frontier AI model that you can't use Ars Technica AI

LabsThe latest AI news we announced in October 2026 Google AI Blog

Toolsb12052 llama.cpp releases

JapanローカルAIが80tok/sで笑う。Claudeのフリーモデルより“人間っぽく”返ってきた夜、AIを自分の子として育てたいと思った話 Qiita (LLM)

LabsAgentic engineering intelligence with Amazon Nova Multimodal Embeddings and Amazon Bedrock AgentCore AWS Machine Learning

ValleyElon Musk throttles Grok Bot limits due to ‘unsustainably high’ costs TechCrunch AI