News
The signal in the noise. Frontier moves, tool releases, and leadership changes that touch a CEO's week. Short reads, operator framing, every weekday.
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Anthropic's Fable 5 guide flips how you prompt it
The habits that got the most out of older Claude models now leave capability on the table: longer prompts, more rules, tighter leashes. Anthropic said so in writing this week.
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Half of Shopify now ships its own software
I run a $30M store on Shopify. Yesterday two of their engineers published how they got more than half the company building its own internal software, and the unlock wasn't a smarter model.
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Anthropic just shipped the public version of Mythos
Two days ago this site walked you through [Claude Mythos](/articles/what-is-claude-mythos), the model Anthropic built that was so good at breaking software it refused to sell it to anyone. On June 9…
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Claude Fable 5, the public face of Mythos, reportedly lands today
Two checkpoints, "claude-fable-5" and "Claude Fruitcake EAP," surfaced in Anthropic's testing and got amplified across X within hours. No press release. Just identifiers and a crowd doing the rest.
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The company that makes Claude wants the option to pause
I run two companies on Claude. So it got my attention when the company that makes Claude spent a report this week arguing the world should keep the ability to hit pause on the very thing it sells.
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Claude now writes most of the code at Anthropic
The company building the frontier model is now mostly running on the frontier model. The engineers set the goal; Claude writes the code.
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ChatGPT now updates its own memory between chats
Your ChatGPT is still acting on things that stopped being true months ago. The trip you already took. The hire you already made. OpenAI just shipped the fix, and it's coming to free accounts too.
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Microsoft built its first always-on agent on OpenCLAW
The open [harness](/articles/what-is-a-harness) this newsletter keeps telling you to learn just became the engine under Microsoft's biggest agent launch of the year. Microsoft did not build its own.…
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The era of no federal AI rules is quietly closing
The administration that ran on letting AI rip just signed its first order to rein it in. It is voluntary, it is narrow, and that combination is exactly why it matters.
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Anthropic ships Opus 4.8. How much better is it?
Open Claude today and you're running on Opus 4.8. Anthropic shipped it this morning. Same per-token price as the model you used yesterday. Fast mode runs 2.5x faster at one-third the cost. And the…
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Claude Code can now do a multi-day job in one window
Jarred Sumner ported the Bun runtime from Zig to Rust on a Claude Code preview. 750,000 lines. Eleven days. 99.8% test compatibility. Today the feature he used has a name: dynamic workflows. [Claude…
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Microsoft just put OpenAI's biggest rival inside Office
Open Excel today and you can run your numbers through Claude, not Copilot. Microsoft hosted OpenAI's biggest competitor inside its own productivity suite last week.