Are You Human Too? (2018)

Both of the stories are about robot. Like the lead role of are you human too, lead actor of I am not a robot belongs to rich family

Both drama stars Gong Seung Yeon. "Circle" presents an alien and "Are You Human Too" presents robot. Other similarities include a more serious approach to sci-fi which is very unique to Kdramas and the cloning subject.

Simply because the robot is basically a clone of the main character.
Like in Duel Sung Hoon and Sung Joon are clones.

Both drama showcase a strong romantic connection between the "technology made human" and an anonymous girl. Then later on the actual human who inspired the bot comes and causes conflict. Both these shows are very similar in many ways.

SPOILER ALERT
It's also about family creating android to replace their son.

Both feature the AI theme. In both dramas the main leads are robots, just that the gender is different. Both are about interspecies romance. Just that "Are You Human Too" might be a little more dramatic than "AI Romantic". ~

Both dramas have ML Robots who fall in love with human FLs. They have to keep their identity a secret to avoid danger.

AI Love You and Are You Human Too both have the girl falling for a “guy” who is actually artificial intelligence and the guy has a real person counterpart.

Both dramas are about a person being replaced by other of the same appearance but with a really different personality.

Both have a lot of the same concepts dealing with a big business run by a powerful family. This of course entails love, soul searching, fight for power, family drama, etc. and don’t forget - twists and turns throughout the series!

both have a male lead who is not a real human
both have a lot of suspense
both have a love story that people do not approve of

Both feature a lonely FL and a gentle, kind android as the ML. Both are poignant and touching, but AI is more emotionally devastating.

I do not think that the story is similar...just the robot theme is what makes them the "same".
I think another similarity would be that both female leads loved their robot boyfriends like a human male. The robot boyfriends are both caring, handsome and dreamy as well...Like, both actors who played the roles have a perfect body and face. And the attitudes towards the female lead is very superb as well. Makes you want to ask where you can buy such "robots"...

The male lead has to pretend everything is allright so he can lead the company.
The male lead is cute and nice.
No robots though.

I recommend this both drama because , Male lead and Female lead
try to solve problem
In one drama explosion and another student murder/suicide