Are you sure you got autos?
edit:
nvm; checked your post.
Something went wrong. They are about the size of 10-day-old plants.
The strong discoloration of the leaves indicates what's up.
I'd guess you used too much fertilizer - too salty.
Also: While totally ok to transplant autos, it's better to plant them in the big pot from the beginning.
At first I didn't really think anything about the size since I have a couple Photos growing as well, but after seeing your post I realized something was wrong lol.
Im assuming I just kept them inside in those peat pots for way too long, and the light was only about 18 - 24 inches away. I've been told not to transplant, I just didn't think these peat pots would really count.
Also, now that think about it, it makes sense because they spent their entire "stretching" period without having the need to stretch to the light because it was too close. But yea, I'll definitely havr to start these ones over and this time I will be starting them in their forever home!