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

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The Decoder

Google bets Gemini can turn casual players into game developers with new Playground feature

October 7

Google launched Playground, a browser-based platform that lets users create their own games using nothing but text prompts and no coding skills. The platform runs on Gemini, Nano Banana, and Lyria.

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Latest

Google bets Gemini can turn casual players into game developers with new Playground feature

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JapanAI に毎回読ませる規約を16KB→7.8KBに。削った基準と実測 Zenn (AI)

GitHubGPT-6.1 Sol vs. GPT-6 Astra: Same accuracy at 18% of the cost The New Stack

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JapanClaude Code 応用編まとめその3（#11〜#15）：mods・ステータスライン・プラグインで拡張して配る Zenn (AI)