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

PydanticTools

High-volume AI scoring with Jev and Pydantic Evals

09.23

An evaluator often needs to return a category, a yes/no judgment, or a position on a rubric. Writing an explanation can be useful, but you don't always need one for every production response.

Research Pydantic AI Pydantic Logfire Testing

Read at Pydantic ↗

One letter a week, starting soon.

Latest

High-volume AI scoring with Jev and Pydantic Evals

Related

ToolsThe 7 best LLM evaluation tools in 2026 Pydantic

SiliconImproving Quantum Error Correction By Meshing Surface Code With IBM’s Heavy-Hex Architecture The Next Platform

SiliconWhy Read a Research Paper When You Can Turn It Into an AI Agent? IEEE Spectrum AI

LabsHow UK AISI and EvalEval Are Making Benchmark Results Reproducible Hugging Face Blog

LabsTransformers now runs llama.cpp quants Hugging Face Blog

Labstokenizers v1: encode, decode and scaling, measured Hugging Face Blog