An exclusive look at how OpenAI’s infrastructure team is adapting to a flood of AI-generated code
Plus: Our Claude Opus 5 Vibe Check, what makes an AI workflow stick, and the expertise trap that a prompt can’t shortcut
Anthropic’s latest Opus can do impressive work—but getting it there may require dismantling the systems you already use
Plus: OpenAI’s Codex playbook, a trick to cut Fable’s token spend, and the models the team is using this week
AI prototyping overwhelmed Whoop’s decision-making process. Here’s how it adapted.
These four questions helped me decide which ones to keep, redesign, revisit, or retire
Plus: Plus: Codex folds into ChatGPT, and why the next drug giant won't be an AI company
How I shipped gift links with Codex—and what it says about who gets to build in an AI-native company
Use them intentionally, or they could make your AI worse
Plus: Granola’s founder on why starting a company is a 'knife fight,' AI enters the C-suite, and who we’re following on X
Get more than $7,000 in AI tools—and everything we know about putting them to work
Power users revolt at OpenAI’s tool combination. Plus: The battle for knowledge-work OS, managing agents with Fable, and a 53 percent error-rate drop
Polish is the final step of compound engineering: using the app myself and telling the agent what feels off until it doesn't
Plus: A mini-Vibe Check of Grok 4.5, and why AI scribes could dull doctors' judgment
Don’t do your work. Tend your loop.
Plus: Why intent beats volume, a new AI productivity status metric, and a tool for squeezing the most out of cheaper models
Plus: A manual for handing recurring work to Opus, a skill for judging new tools in context, and the specialist model that beat the frontier for less
Plus: Why Anthropic is getting into drug discovery
Anthropic’s new model can draft, code, and analyze competently, but every use case has a cheaper, faster, or smarter alternative
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Laura Entis
Every Staff
Dan Shipper
Hilary Gridley
Katie Parrott
Jack Cheng
Kieran Klaassen
