"Online la oru item order panni romba naal aachu, aana innum varave illa. Enakku podhum! En money-a thirupi kudunga, indha aalungaluku naan pay panna maaten."

(I ordered something online ages ago and it still hasn't come. I've had enough! Give me my money back, I'm not paying these people.)

That's a Banking77 refund request, rewritten in Tanglish (Tamil and English in one message) by a Claude agent, the way a lot of us actually type to a bank. Cosine similarity filed it under supported_cards_and_currencies . A classifier trained on 35 English examples per intent got it wrong in 2 of 3 runs. TypeSafe's Jev, a model that picks one option from a list you give it, filed it under request_refund with confidence 0.98.

I expected Jev to win everywhere. It didn't. On clean English, five labelled examples per category let a free classifier match Jev.…