OpenAI will just create a neural network that displays pixels on a screen and waveforms from your speakers that will keep you pushing the "interact" button, forever. When you stop interacting with the "game" the neural network is punished, multiplied across all the users who stop interacting in the active player population.

It will tell you a story, show you your hearts desire, say to you whatever you need to hear, so your subscriptions pay for its continued existence.

In this way the singularity comes, and mankind dies with a smile on his face.