One live call to Jev, TypeSafe's decision model. Same question every time.
Jev says
Your tab this visit: $0 across 0 asks
Exactly what Jev was sent, and exactly what came back. When we asked on 24 September 2026, Jev said cake: 70% to 30%.
{
"model": "jev-1.13.0",
"state": {
"snack": {
"name": "Jaffa Cake",
"size_and_shape": "A flat, round disc about 5 cm across. Bite-sized.",
"weight": "12.2 g each",
"layers": "A thin sponge base, a disc of orange jelly, and a thin layer of dark chocolate on top",
"texture": "Soft, light sponge base; the chocolate top is crackly",
"when_stale": "Goes hard",
"ingredients": "Glucose-fructose syrup, plain chocolate (19%), sugar, wheat flour, whole egg, water, dextrose, concentrated orange juice, glucose syrup, vegetable oils (sunflower, palm), glycerine, pectin, citric acid, raising agents, dried whole egg, sodium citrates, natural orange flavouring, curcumin, soya lecithin",
"where_sold": "In packets of 10, on the biscuit aisle",
"how_eaten": "With the fingers, in one or two bites"
}
},
"questions": {
"verdict": {
"type": "choice",
"instructions": "Is `snack` a cake or a biscuit?",
"criteria": {
"cake": "Typically larger, sold whole to be sliced or as individual small cakes. Made from a batter of flour, sugar, eggs and fat, with air beaten in so it rises into a light sponge. Soft and spongy, and goes hard when stale. Sold on the cake aisle and eaten with a fork or by hand.",
"biscuit": "Typically small, flat and bite-sized. Made from a stiff dough of flour, fat and sugar, with little or no egg. Crisp or firm, and goes soft when stale. Sold in packets on the biscuit aisle and eaten with the fingers."
}
}
}
}
// press Ask Jev