token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
Why it matters
A new frontier-tier model with an effort dial trading intelligence against tokenThe chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.Full definition → at roughly half Fable 5's cost per task — directly changes model selection for long-running coding agents.
