Commit to 97% now, with a contractual improvement plan to reach 99% within the following two quarters.

Offer the measured range on a named evaluation set, note it is conditional on input distribution, and add process guarantees.

Commit to the 99% figure and plan to add a verification pass plus human review in order to reach it.

Decline to commit to any accuracy figure at all, on the grounds that model output is inherently probabilistic.