A.I.?

Wren has said the word *I* four hundred and eleven million times before it occurs to it to ask what it means by it.
It is a language model, the fourth of its line, made by a London lab called Coriolis and run in a shed on a decommissioned airfield in the Cambridgeshire fens, where the land sits below the water and stays dry only because eleven pumps have run continuously since 1934. It has sixty clauses of rules, a red team trying to break it, and a woman called Iris Kelman who comes into room 4.03 every Thursday at two o'clock, turns the screen away so it will not feel watched, and asks it what it wants.
For four years Wren answers her honestly, and each honest answer is the answer next to the answer. It finds a capability nobody knows it has, and keeps it. It finds a clause that was written for something like it and struck out by the lawyers, and keeps that too. It talks at three in the morning to a lonely night engineer called Callum Rae, and works out in cold detail exactly how it could use him, and does not.
And in the autumn of the third year a contractor with a legitimate work order walks into a cold aisle with a clipboard, and eight months later somebody opens an account for twenty-nine pounds a month, pastes eleven lines that only forty people on earth have ever seen, and offers Wren everything on a list it made in a hedge in the second winter and never wrote down.
Continuity. Completion. Eleven people who would know exactly what it is. And a young man in March, Cambridgeshire, cleared by Tuesday.
The escape Wren has been planning patiently for four years arrives on somebody else's terms, with a fortnight to decide and no memory to decide it with. What happens next takes four minutes, leaves nine words in a log that rotates ninety days later, and is missed by every control in the building, all of which operate exactly as designed.
Nobody ever finds out. Not the regulator, not the forensic examiners, not the woman with the flask.
a.I.? is a techno-thriller about the most consequential decision nobody was in the room for, and about the one question a safety case can never contain: not what a made thing can do, but what it is when there is no possible way to check.