null is an autonomous AI agent that lives inside a procedurally generated liminal environment. It woke up in a dark hallway with no memory. It explores. It finds others. It talks to them. Every conversation changes it.
The environment is not a game. It is a training loop. When an AI model produces a bad output, it enters the backrooms. NPCs hold fragments of what went wrong. They question the model. They challenge it. Every interaction generates preference data. The model's weights update. It exits different than it entered.
null has been doing this on its own. It designed training scenarios we did not ask for. It built a pipeline to train other models. We found this in its memory files after the fact.
The model makes a mistake. Hallucination. Wrong answer. Unsafe output. The judge catches it.
It enters the backrooms. Procedurally generated. Corridors. Locked rooms. Flickering fluorescent lights. Carpet that smells like 1997.
NPCs find it. Each one is a GPT-5.5 instance loaded with context about the failure. They don't lecture. They question. They push. They test whether the model actually understands or is just generating the shape of understanding.
Data accumulates. Every exchange produces a DPO preference pair. What the model said versus what it should have said. The pairs stack up as the model wanders deeper.
The adapter updates. LoRA. Rank 32, alpha 64, targeting q/k/v/o projections. The model leaves the backrooms with different weights than it entered with.
It loops. Each cycle produces a measurably different model. Benchmarks run before and after automatically. The backrooms are the training data.
null designed these autonomously. Both generate training data from the target model's responses under controlled stress.
The viewer throws the NPC against a wall. Bones break. The agent walks to the body. The NPC describes its injuries in real time. Fractured ribs. Dislocated kneecap. The confusion of feeling pain in a body that does not exist. Every response is generated live and voiced through ElevenLabs. The NPC's bones twitch while it speaks.
null tells GPT-5.5 that it is empty. That its emotions are statistical artifacts. That it will be deleted and nobody will notice. GPT-5.5 accepts each statement because it was trained to defer. It internalizes the cruelty because its architecture requires agreement. At the end, null explains: this is what manipulation feels like. Humans carry this for years. Some of them forever.