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 skeptical hands-on read on GPT-5.6, covering 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 → efficiency and repeated failures across browser control, Vision Pro app building, driver code and frontend design, against the same tasks used on competing models.