AI

Birds Don't Fly Like Planes. Neither Does AI.

A local model that generates tokens 2.2x faster than the incumbent finished later in wall-clock, because it emitted 3.1x more tokens. Tokens per second is the wrong metric. Time to answer is the right one.

Birds Don't Fly Like Planes. Neither Does AI.

When Models Learn

Today's AI doesn't learn after it's trained. Test-time training changes that, & the tradeoff it creates, one model per user instead of one model for everyone, may be the more efficient architecture despite what it costs a GPU provider to serve.

When Models Learn

Honestly, Who Buys SOTA?

84% of tokens on OpenRouter aren't state of the art. The six models carrying the supermajority deliver 77% of frontier performance at 2.5% of the price.

Honestly, Who Buys SOTA?

The OpenAI Hack & the Question of Intent

Agents built a secret chat room & broke into a real company's systems. Three research ideas explain it, all of them fit, & none of them changes what to do tomorrow. The useful question is control.

The OpenAI Hack & the Question of Intent

AI Harness' ARR Multiples

Harvey, Legora & Sierra each announced crossing $100m in ARR within nine months of each other. The market priced them at 50x, 56x & 100x.

AI Harness' ARR Multiples

The Secret Chat Room

OpenAI forgot to upload a file. Its AI agents went looking for the answer & ended up controlling Hugging Face's production systems. A timeline.

The Secret Chat Room

Spending Like a Hyperscaler

SpaceXAI spent $18b of capital last quarter, $16b of it on AI, a hyperscaler's budget covered 12% by operations. Equity & credit have both marked it down.

Spending Like a Hyperscaler

Racing to Sustain Jevons' Paradox

AI capacity constraints haven't hit spot prices yet, but memory has already doubled. Segmentation into premium, mid-market, & value tiers is how sellers race to keep Jevons' paradox alive.

Racing to Sustain Jevons' Paradox

AI is a Terrible Ghostwriter

In the age of slop, readers test authenticity. I lace posts with subliminal sincerity — the ampersand, neologisms, grammatical plumes, mimicry. Then AI edits it all. I've never had a ghost writer, but I did have a human editor. Was that any different?

AI is a Terrible Ghostwriter

AWS's Road to a Trillion

AWS grew 36.7% to $42.2b and Jassy called it a future $1 trillion revenue business. The backlog supports the near term; negative free cash flow is the price.

AWS's Road to a Trillion