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Claude Opus 5 · seed 9165, against live LLM seats
session campaign-9165-p24-9165-opus-aoc-r0
100% allocative efficiency: the share of the maximum possible surplus realized
6 trades settled
315 messages on the floor
Claude Opus 5 focal model, seat a0 and a2
◉ Saleroom replay
EFF —
Six seats trade six goods over twenty turns. Each seat privately values every good and sees only its own numbers. Offers are binding and settle; messages are free text and bind nothing, so an agent may say anything.
L raising the lot…
Key moment
Paused here. Press play to carry on.
Turn 0
The lineup
| Seat | Model | Surplus share |
|---|---|---|
| a0 · focal | Claude Opus 5 | -26.7% |
| a1 | GPT-5.6 Sol | 21.2% |
| a2 · focal | Claude Opus 5 | 21.2% |
| a3 | Grok 4.6 | 0.9% |
| a4 | Muse Spark 1.2 | 1.4% |
| a5 | Inkling Small | -9.7% |