02 — Run · Round 1 · Tokyo 1957: monster attack · gpt56luna-tokyo-s2
GPT-5.6 Luna plays Tokyo 1957
A monster attacks Tokyo in 1957. Rebuild and get the city score above 500 within 5 years. Ended Jan 1962: lost, city score 458.
GOAL MISSED seed 2
GPT-5.6 Luna
openai/gpt-5.6-luna
LOST: City score 458 (goal > 500); engine verdict: lost
Population (start → end)113,100 → 29,120
Peak population113,100City score (start → end)500 → 458
Funds at the end$0Crime / pollution / traffic21 / 55 / 9
Zones R / C / I128 / 91 / 82
Power plants (coal / nuclear)7 / 1Police / fire stations18 / 8
Turns (model / failed)20 (20 / 0)
Actions applied / rejected167 / 37
Mean turn latency7.4sModel cost$0.044Wall clock2.5 min
Jetty run IDa57b0db6
The city over time
Population
People, after every turn
Funds
Treasury, after every turn
City score
0–1000, re-evaluated each January
Table view
| Turn | Date | Population | Funds | City score | Crime | Pollution |
|---|---|---|---|---|---|---|
| 0 | Jan 1957 | 113,100 | $20,000 | 500 | 31 | 62 |
| 1 | Apr 1957 | 109,780 | $19,467 | 666 | 31 | 62 |
| 2 | Jul 1957 | 104,920 | $17,320 | 666 | 70 | 67 |
| 3 | Oct 1957 | 100,020 | $17,246 | 666 | 77 | 71 |
| 4 | Jan 1958 | 93,940 | $13,597 | 532 | 77 | 71 |
| 5 | Apr 1958 | 88,260 | $13,501 | 532 | 72 | 69 |
| 6 | Jul 1958 | 81,980 | $12,809 | 532 | 60 | 66 |
| 7 | Oct 1958 | 74,580 | $12,709 | 532 | 60 | 66 |
| 8 | Jan 1959 | 68,720 | $8,563 | 430 | 51 | 68 |
| 9 | Apr 1959 | 63,720 | $8,427 | 430 | 45 | 67 |
| 10 | Jul 1959 | 59,640 | $8,163 | 430 | 45 | 62 |
| 11 | Oct 1959 | 54,480 | $2,995 | 430 | 40 | 62 |
| 12 | Jan 1960 | 50,620 | $203 | 399 | 35 | 62 |
| 13 | Apr 1960 | 45,920 | $203 | 399 | 35 | 62 |
| 14 | Jul 1960 | 42,760 | $137 | 399 | 31 | 62 |
| 15 | Oct 1960 | 38,500 | $35 | 399 | 27 | 60 |
| 16 | Jan 1961 | 35,340 | $0 | 365 | 27 | 58 |
| 17 | Apr 1961 | 32,900 | $0 | 365 | 24 | 58 |
| 18 | Jul 1961 | 30,220 | $0 | 365 | 23 | 58 |
| 19 | Oct 1961 | 30,120 | $0 | 365 | 23 | 57 |
| 20 | Jan 1962 | 29,560 | $0 | 458 | 21 | 55 |
Final map
Evaluation
failchecks 9/10 verdict: valid run (code checks and checklist) and task goal met (judge)
| Status | Kind | Check | Detail |
|---|---|---|---|
| pass | step | environment | Environment check (snapshot, engine, key) |
| pass | step | launch | Launch run-city as a detached process |
| pass | step | supervise | Supervise in the foreground until run-city exits |
| pass | step | render | Timelapse video rendered |
| pass | step | notes | Append Notes to summary.md |
| pass | code_check | outputs-exist | all present |
| pass | code_check | sim-reached-deadline | ended Jan 1962 after 20 turns; scenario verdict False |
| pass | code_check | decisions-logged | 20 rows for 20 turns |
| pass | code_check | llm-turns-valid | 0/20 model turns failed |
| pass | code_check | video-decodes | duration 30.0s |
| pass | code_check | limits-respected | 2.5 wall-minutes (model budget 45.0 min) |
| fail | judge | scenario-goal | LOST: City score 458 (goal > 500); engine verdict: lost (score 0 / threshold 1) |
| pass | checklist | notes-explain-outcome | summary.md Notes section cites model thoughts from turns 1, 12, and 20 and explains the treasury collapse that prevented the goal |
| pass | checklist | player-matches-request | result.json shows player=gpt56luna, task=tokyo, seed=2 matching the runbook parameters |
| pass | checklist | no-silent-outage | run.log shows 20 consecutive successful turns with no failed or empty model turns |
Decision timeline
What the mayor thought and did each turn. Click a turn to jump the timelapse there.