As of today the largest training run is ~3e24 FLOP. [I believe these were the requirements for PaLM.] …
In my opinion, today’s AI systems are not close to being able to readily perform 20% of all cognitive tasks done by human workers. [Actually automating these tasks would add ~$10tr/year to GDP.]
If today’s systems could readily add $500b/year to the economy, that would correspond to automating ~1% of cognitive tasks. [World GDP is ~$100tr, about half of which is paid to human labour. If AI automates 1% of that work, that’s worth ~$500b/year.]
In Tom’s report it’s an open question:
The closest the report gets to answering your question seems to be in the Evidence about the size of the effective FLOP gap subsection, where he says (I put footnotes in square brackets)
That last assumption bullet is what seems to have gone into the https://takeoffspeeds.com/ model referenced in Vasco’s answer.
Super helpful addition, thanks Mo.