Truth Check/3 October 2026

“Using 20% of our central capacity estimate would imply $2.6-5.3 trillion a year in API-equivalent spending, against roughly $1 trillion in developer revenue by end-2027 at fivefold annual growth.”

The claim as it travelled: Epoch AI, 2 Oct 2026.

The sentence is Epoch's own, in the post's demand-side section, with the assumptions and code published in its appendices.

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Epoch AI: the memory shipped for AI chips through 2027 could run 30 to 170 million agents at once - and using a fifth of it would cost more than the industry earns

Epoch's new estimate works from high-bandwidth memory shipments, not chip counts. Running 20 per cent of that capacity at today's API prices implies $2.6 to 5.3 trillion a year of spending, against roughly $1 trillion of model-developer revenue by end-2027 if revenues keep growing fivefold a year.

Every claim we have checked, in the Ledger.