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

The Decoder

Reflection's Beam becomes the most capable open-weight model built outside China

October 6

Reflection has released Beam, its first open-weight model. The mixture-of-experts system activates just 23 billion of its 501 billion parameters per token and aims to match GLM 5.2 on coding and…

Open weights Funding & deals

Read at The Decoder ↗

One letter a week, in your inbox.

Latest

Reflection's Beam becomes the most capable open-weight model built outside China

Related

ValleyReflection AI debuts open-source Beam model with 501B parameters SiliconANGLE

SiliconAMD Buys World Labs For $8.2 Billion To Get AI Model Cred The Next Platform

Voices[AINews] Xiaomi MiMo-V2.6-Pro 1T-A42B: the new top Open Weights model, trained for $3M Latent Space

EuropeMistral raises €3B to make sovereign, open-weight AI the technology frontier Mistral AI

VoicesSED News: The NVIDIA-Hugging Face Deal, China’s Proxy Economy, the Open Weight Surge Software Engineering Daily

SiliconNvidia Expands Its Open Source AI Presence With $12.9 Billion Hugging Face Buy The Next Platform