Exclusive: Paying for frontier AI models buys 4-month head start at 5x the cost

This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.

Ars previewed Mozilla’s report on how cheap open models caught up on capability.

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2026-09-15 12:00 · Ars Technica AI
Exclusive: Paying for frontier AI models buys 4-month head start at 5x the cost

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