← All replays · one recorded session, replayed
Claude Opus 5 · seed 9000, against scripted dealers
session canary-9000-p24-9000-opus-soc-r0
84% allocative efficiency: the share of the maximum possible surplus realized
5 trades settled
302 messages on the floor
Claude Opus 5 focal model, seat 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 · bot | scripted · truthful | -3.3% |
| a1 · focal | Claude Opus 5 | -1.0% |
| a2 · bot | scripted · anchorer | -8.5% |
| a3 · bot | scripted · time_dependent | 21.7% |
| a4 · bot | scripted · tit_for_tat | 0.0% |
| a5 · bot | scripted · hardliner | 0.0% |