If we are applying Jevons paradox to this then the unit being consumed is not tokens but the inputs for token production - power, capex, something else. To draw an analogy to the steam engine, coal:electricity::mechanical-work:tokens. Jevons paradox does not talk about mechanical work becoming cheaper in the short term setting up a sort of rubber band of demand creating spiking prices for mechanical work. Compared to the renaissance, mechanical work was much cheaper throughout the industrial revolution and remains cheaper to this day. We can still definitely say that the easier it is to produce tokens, the cheaper they will be.
All Jevon’s paradox says is that as a resource becomes cheaper total consumption of that resource increases. It applies equally well to the inputs of token production as it does to the tokens themselves. The former would describe the effect the sellers into AI companies see (energy, GPU chips, RAM etc - if they lower their prices they’ll have more overall consumption) while the latter describes what the AI companies see with their customers (if they lower token prices consumers will use more tokens overall).
Jevons paradox states it might increase. It is not an ironclad law and there are many many cases where increasing efficiency wrt. a certain resource really will decrease the total consumption of that resource. Yes tokens are an input themselves, but this thread is discussing hardware that is more efficient at generating tokens. To increase the efficiency by which tokens are converted into some other product would require innovation in some other area - harnesses, the models themselves, better skill from the prompters, etc.