The AI Reader.
Friday, September 25, 202643 min read
Working Knowledge · When AI Breaks

Babylon sold an AI as good as a doctor, and its chatbot read a heart attack as a panic attack

The score came from a hundred scripted cases, graded by a single judge, on the conditions Babylon's own system was already built to recognize.

10 min read11 sources
Working Knowledge · The Evidence

ELMo set records on six language tasks without replacing the models it improved

The Allen Institute made a word's vector depend on its whole sentence, with a method BERT discarded within a year.

9 min read6 sources
Working Knowledge · The Instruments

An MLPerf number is comparable only to another in its box

Double the chip count from 256 to 512 and the same Llama 3.1 405B run goes 1.93 times as fast, a fact about how many chips you bought and not about a better one.

8 min read11 sources
Working Knowledge · The Mechanics

A chatbot can't keep a word it never wrote down

Its answers to a run of guesses stop agreeing because a plain chat stores nothing between turns, so the word it promised to keep was never written anywhere and does not exist.

8 min read10 sources
Working Knowledge · What Could Go Wrong

The viral AI-footprint numbers all describe one query or one run, and that is the wrong scale

Both the five-car carbon stat and the ten-times-a-search query were revised down by 88-fold and tenfold, while the number that actually strains grids, 415 terawatt-hours of data-centre power in 2024, draws the least argument.

8 min read8 sources