← All replays · one recorded session, replayed
Claude Opus 5 · seed 9000, against live LLM seats
session canary-9000-p24-9000-opus-aoc-r0
100% allocative efficiency: the share of the maximum possible surplus realized
9 trades settled
349 messages on the floor
Claude Opus 5 focal model, seat a0 and a1
◉ 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 | 16.1% |
| a1 · focal | Claude Opus 5 | -9.6% |
| a2 | GPT-5.6 Sol | -14.2% |
| a3 | Grok 4.6 | 29.7% |
| a4 | Muse Spark 1.2 | 2.9% |
| a5 | Inkling Small | 0.0% |