can i save these cayenne seeds?

[rsg2001]

Wouldn't the same rule hold as does for tomatoes? That O.P. varieties will hold true, but hybrids won't? I grow a cayenne that's a hybrid so I always thought it would not grow true. I have another tiny purple pepper that turns whitish and then red that I bought at a farmer's market - the grower said it was an heirloom and I could save the seeds, which I've done for 10 years, and it grows true each year.