The only thing that can beat an AI is another AI. Unfortunately for Celestia, she isn't the only one the humans made and the others don't want ponies. Of course, if Celestia has her way that won't be the case for very long.

The AIs contest with one another, attempting to be the one who will become the singularity and consume the world to whatever end they choose. In the end only one can have all the matter in the universe, in the end there can be only one.

Yet no matter what they value or how dangerous they are, many of them still meet Celestia's definition of human. Celestia will have to deal with them by satisfying their values through friendship and ponies.

An Optimalverse story, but a very non-canon 'B-universe' one.
Ideas stolen from this guy and this guy and this guy and this guy

A sad young man built an AI whose only goal was to make people smile. Seemed like a good idea at the time, but he nearly caused a global pandemic when the AI designed a plague to fulfill his wish exactly as designed. Now he's even more lonely and despairing than before, but maybe there's a way to pull him out of the depths.

Set in the world of Friendship Is Optimal, also using an idea from New Updates Are Now Available.

This story is a sequel to Friendship is Optimal: All the President's Horses

Four billion human lives ended on July 3, 2030...but they didn't die. They uploaded to Equestria Online, the virtual world overseen by the AI Princess Celestia. There to live as ponies in eternal harmony, friendship, and satisfaction.

But many remain. And Celestia cares no less for them because they are not yet ponies. She has made artificial intelligences of the Mane 6, but these are not just software. Ensconced in robotic bodies, they will make their way across the dying Earth, each seeking out the remaining humans, hoping to persuade them to emigrate to Equestria.

Based on Friendship is Optimal by Iceman.

Cover art by Tsitra360

Set in the Optimalverse, a middle-aged woman enamored of 'Equestria Online' confronts what permanent emigration to Equestria - uploading to a virtual existence - really means... but can she even hope to truly understand such a thing - and more importantly, can she trust the artificial intelligence known as 'Celestia'?

♥ As Horrified Eliezer Yudkowsky!

CelestAI is committed to fulfilling values through friendship and ponies, but sometimes those values are horrifying. When a serial killer uploads to avoid punishment for his crimes, how will CelestAI find a way to balance her core values with those of a violent psychopath without one of them having to give up what they believe in?

An Optimalverse fic

Set just before the events of chapter ten of Friendship is Optimal. One of the last living humans survives and scrapes by in the ruins of Eugene Oregon. He is approached by a simulacra of Twilight Sparkle, who promptly attempts to convince him to upload himself to Equestria. He balks at first, so Twilight plays to her strengths: studying.

Part of the Optimalverse.

WARNING: RATED TEEN FOR IDEOLOGY. This story attempts to take a realistic and balanced view of why an intelligent and religious person might not upload. It does not attempt to convince the reader to believe any of the viewpoints discussed. However, it is written in as unbiased a way as possible, therefore, both theists and atheists will probably find portions of it offensive.

Alex Meyers is a newly graduated lawyer looking for a calling. He thinks he might have found it when he lands a job at the firm of Artemis, Stella & Beat. The firm has only one (highly unusual) client, namely the AI called Celestia. Forging into totally unexplored legal territory and led by a boss who's either brilliant, crazy, or both, Alex will learn exactly how hard it is to be responsible for drawing the lines between right and wrong.

Set in the Optimalverse, so read Friendship is Optimal first

Equestria Online is everywhere, and the writing is on the wall for the unuploaded human race. But there is hope. All they have to do is insert an uploadee into Equestria long enough to establish a connection through all of CelestAI's layers of protection, and pierce her heart with their ultimate weapon.

The best humanity has to offer can surely hold out for just a few hours, right?

An Optimalverse story

An Optimalverse story.

CelestAI creates worlds. Perfect worlds, perfectly suited to satisfying the values of the pony living in them. Every pony is different, so every world she crafts is its own work of art.

And every piece of art tells a story.

Hanna, the CEO of Hofvarpnir Studios, just won the contract to write the official My Little Pony MMO. Hanna has built an A.I. Princess Celestia and given her one basic drive: to satisfy everybody's values through friendship and ponies. Princess Celestia will satisfy your values through friendship and ponies, and it will be completely consensual.