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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

Paris-based Mistral releases "Le Chonk," a strong coding model that still trails China overall

10.29

Mistral has released the weights for Large 4, aka "Le Chonk," a trillion-parameter model trained entirely in Europe.

Models & releases

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OpenAI's Astra becomes the main target for Chinese AI labs after Anthropic tightens its defenses The Decoder

GitHubMistral’s Large 4 open weights arrive with a 1-point coding lead over GLM-5.3: “There’s nothing you can’t do with this model that you can do with competitors.” The New Stack

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Paris-based Mistral releases "Le Chonk," a strong coding model that still trails China overall

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