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The Bun rewrite was built with a pre-release Fable 5 – one developer, eleven days, 6,778 commits. Paul Dix draws a conclusion: this is what normal software work will soon look like.

125 billion parameters, but only 6 active per token – plus a new sparse-attention trick. Alibaba open-sources its next model before Qwen4 even arrives.

Last week an anonymous coding model called 'Ox Alpha' showed up on OpenRouter — nobody knew who built it. Now it's clear: it's GLM-5.3-Flash from Z.ai, and the weights are out in the open on Hugging Face.

How do you measure whether a chatbot helps or hurts someone in crisis? Anthropic is funding independent research with $5 million to build open evaluations and benchmarks for exactly that.

Consulting firm Bain rolled Claude out to all 19,000 employees and now sits at the top tier of the Claude Partner Network. In the pilot phase alone, more than 7,000 people were using the tool within weeks.

Version 2.1.246 adds a dedicated Auto mode tab to permissions, shows the time each answer finished, and cleans up dozens of rough edges. Not flashy — just a lot of things quietly set right.

The new version brings a SendFeedback tool that prepares an error report automatically when something breaks, plus a cost optimizer for the Claude API and the usual long list of bug fixes.

What you tell Claude in chat, Cowork now knows too - and the other way around. Anthropic merged the two memories, made every entry editable, and lets you choose whether sensitive topics get saved at all.