Swarm scaling is inefficient: matching a 100x token scale-up needs 900x–15000x more agents

tobyordoxford · x · 2026-09-22

Toby Ord (Oxford) shares estimates converting swarm scaling to thinking-duration scaling: scaling the number of agents in a swarm by 10x yields only 10^λ — about 3x to 5x — of the performance gain from giving one agent 10x more tokens. The shortfall compounds at scale: to match a 100x token scale-up for a single agent, you'd need to grow the swarm by 900x to 15,000x. The implication is that longer thinking by a single agent beats piling up more agents.

Related event: Oxford's Toby Ord quantifies swarm scaling: far less compute-efficient than longer thinking(17 posts)→

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