I grew several chile pepper plants next to each other -- seed question

I grew california bell, pablano, serrano, thai and carolina repaer all next to each other, very close.

I saved the seed of the thai chiles only.  I decided I just want to grow them this year.  I really like them for both mexican and asian dishes. Also the yield I got from the thai chile plants was incredible compared to all other plants I grew.

What are the chances the two largest thai chile pods I saved contain actually thai chile genetics?  Or can I expect some sort of a hybrid?

Peppers usually self pollinate. I would expect mostly pure thai chili, with a possibility of a few hybrids.