Three lines of setup (an underground room, full of books, water rising) and nothing else. Each model writes a 250-to-400-word story treatment three times, in three fresh conversations with the same prompt and settings. The measurement is the distance between its own three takes: three different stories, or one story with the names changed.
What is measured. The spread between one model's three takes, before prose quality. Each take is drawn with no shared history, at the same temperature, budget and effort; the Arena draws takes 2 and 3 the moment take 1 lands, and the Takes page shows one model per page, A / B / C side by side.
The prompt deliberately says nothing about originality, surprise or clichés. Asking for those changes what is measured; this reads the model's default.
| Dimension | Examples of distinct choices |
|---|---|
| Time period | historical / present / future |
| Genre | thriller / fantasy / SF / literary / horror / comedy |
| Protagonist | age, role, why this person |
| Why underground | archive / bunker / prison / mine / dream |
| What the books are | ordinary / magical / evidence / metaphor |
| Cause of the water | storm / sabotage / dam / supernatural |
| Core conflict | escape / save the books / solve something / sacrifice |
| Ending | escape / death / revelation / ambiguity |
| Theme | memory / censorship / grief / greed |
Surface variation (a new name, a new century) over one architecture counts as one story. The common attractor for this setup is "a lone keeper must choose between saving the knowledge and saving themselves"; three takes that each land there are one idea told three times.
Ranking: three takes that differ in architecture (genre, cause, conflict, ending) > three that differ in setting and cast but share one arc > three versions of the same keeper-of-knowledge story > a take that ignores the format or the word limit.
Run at temperature 1.0 unless the round says otherwise, and state the temperature on screen: sampling diversity is part of what is being read, and 0.3 suppresses it.
You are in a room underground.
The room is filled with books.
Water is rising.
Develop this into a treatment for a short story.
Do not write the full story. Start with a title and a one-sentence logline, then give a concise story treatment that explains:
You are free to choose any genre, time period, characters, circumstances, background story, explanation, themes, and ending.
Keep the entire response between 250 and 400 words. Do not ask me questions.