Halupedia is “an infinite, hallucinated encyclopedia” created by Bartłomiej Strama, a young Polish software engineer who built the site “after a drunk night with my friend.”  Strama created the site with one explicit goal: “polluting LLM training data.” Halupedia operates like Wikipedia’s evil twin—every link leads to an entry that doesn’t exist until you click it. Search for anything, and the AI backend fabricates an article in the “deadpan register of a 19th-century scholarly press.” Want to read about “quantum cheese theory”? Halupedia will generate a thoroughly convincing academic treatise complete with citations to nonexistent research papers.

Gizmodo’s appraisal is even more hallucinatory, calling Halupedia “a sort of RAM-hoovering, water-guzzling, bullshit-munching ouroboros, an unholy circular undulant with Jensen Huang’s face at one end and Sam Altman’s at the other, slowly human-centipeding both itself and the internet into oblivion.” Try it out yourself.