Hello kayb, not too hot as those are not completely ready, but sure they are pretty! Once they are ripe, they will turn into bright red. A type of "Aji Limo", used mostly for ceviche in Peru. Good luck with those tomatoes and do share some pictures.
Greetings from Germany from a Peruvian growing "peruvian ajies" and some other ingredientes like jalapeños and tomatillos. No green salsa around here if so it will be super expensive! This is from my garden last year....