Turn	Date	Population	Funds	City score	Crime	Pollution
0	Jan 1900	0	$20,000	500	0	0
1	Apr 1900	0	$15,259	712	0	0
2	Jul 1900	660	$10,628	712	17	52
3	Oct 1900	1,680	$4,949	712	13	48
4	Jan 1901	2,720	$1,059	475	13	48
5	Apr 1901	5,160	$396	475	27	46
6	Jul 1901	6,900	$90	475	42	41
7	Oct 1901	9,600	$90	475	42	41
8	Jan 1902	12,520	$808	684	60	49
9	Apr 1902	15,440	$127	684	81	63
10	Jul 1902	18,500	$127	684	81	61
11	Oct 1902	20,260	$127	684	111	61
12	Jan 1903	21,360	$996	675	123	65
13	Apr 1903	22,920	$996	675	123	70
14	Jul 1903	21,840	$996	675	134	70
15	Oct 1903	19,620	$996	675	133	71
16	Jan 1904	17,540	$2,130	437	133	65
17	Apr 1904	15,420	$2,130	437	123	56
18	Jul 1904	13,960	$2,130	437	105	56
19	Oct 1904	12,480	$2,130	437	105	58
20	Jan 1905	11,160	$2,987	310	91	59
21	Apr 1905	9,920	$2,987	310	84	59
22	Jul 1905	9,240	$2,987	310	84	49
23	Oct 1905	8,500	$2,987	310	78	53
24	Jan 1906	7,260	$3,189	296	66	53
25	Apr 1906	6,360	$187	296	66	48
26	Jul 1906	5,340	$177	296	57	45
27	Oct 1906	4,700	$166	296	47	39
28	Jan 1907	4,480	$502	283	47	39
29	Apr 1907	4,420	$502	283	43	41
30	Jul 1907	3,600	$482	283	41	43
31	Oct 1907	3,340	$482	283	41	43
32	Jan 1908	3,360	$683	318	37	38
33	Apr 1908	3,040	$683	318	38	42
34	Jul 1908	2,740	$683	318	38	44
35	Oct 1908	2,180	$683	318	35	44
36	Jan 1909	2,160	$809	329	29	46
37	Apr 1909	3,780	$809	329	29	41
38	Jul 1909	5,140	$509	329	28	41
39	Oct 1909	6,200	$509	329	37	43
40	Jan 1910	6,560	$997	650	37	47
41	Apr 1910	5,780	$697	650	49	47
42	Jul 1910	4,820	$697	650	54	47
43	Oct 1910	4,360	$697	650	54	45
44	Jan 1911	3,720	$1,145	433	49	52
45	Apr 1911	3,360	$1,145	433	43	52
46	Jul 1911	3,260	$1,145	433	43	44
47	Oct 1911	2,480	$1,145	433	44	42
48	Jan 1912	2,440	$1,453	357	34	42
49	Apr 1912	1,920	$1,453	357	34	43
50	Jul 1912	1,860	$1,453	357	27	39
51	Oct 1912	1,880	$1,453	357	25	39
52	Jan 1913	1,260	$1,621	292	25	39
53	Apr 1913	2,220	$1,621	292	23	48
54	Jul 1913	3,100	$28	292	26	48
55	Oct 1913	2,600	$28	292	26	48
56	Jan 1914	1,780	$280	425	34	48
57	Apr 1914	1,320	$280	425	34	45
58	Jul 1914	1,300	$280	425	34	45
59	Oct 1914	1,020	$198	425	29	42
60	Jan 1915	700	$282	288	27	42
61	Apr 1915	1,340	$282	288	27	40
62	Jul 1915	1,340	$282	288	25	40
63	Oct 1915	1,140	$282	288	28	43
64	Jan 1916	1,540	$322	644	28	40
65	Apr 1916	1,920	$307	644	26	40
66	Jul 1916	1,840	$307	644	27	41
67	Oct 1916	1,480	$307	644	27	39
68	Jan 1917	1,420	$475	531	27	39
69	Apr 1917	1,280	$475	531	23	39
70	Jul 1917	1,260	$475	531	23	40
71	Oct 1917	1,180	$475	531	23	39
72	Jan 1918	1,140	$615	433	23	39
73	Apr 1918	920	$615	433	23	40
74	Jul 1918	1,280	$615	433	23	46
75	Oct 1918	1,320	$615	433	23	46
76	Jan 1919	1,700	$615	716	23	43
77	Apr 1919	4,020	$91	716	25	42
78	Jul 1919	4,180	$91	716	40	47
79	Oct 1919	3,320	$91	716	40	47
80	Jan 1920	2,920	$242	756	44	41

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 1920 after 80 turns; scenario verdict None
pass	code_check	decisions-logged	80 rows for 80 turns
pass	code_check	llm-turns-valid	0/80 model turns failed
pass	code_check	video-decodes	duration 35.6s
pass	code_check	limits-respected	12.6 wall-minutes (model budget 45.0 min)
fail	judge	city-goal	population 2,920 (goal 10,000), city score 756; BANKRUPT: treasury under $500 for 8 turns in a row (score 0 / threshold 10,000)
pass	checklist	notes-explain-outcome	Notes section added citing model thoughts from turns 1, 13, and 80; explains over-investment and tax-hike spiral
pass	checklist	player-matches-request	result.json player.id=gpt56terra task=grow seed=6 match the requested values
pass	checklist	no-silent-outage	run.log shows all 80 turns logged with 0 LLM failures, no gaps or stretches of failed turns

GPT-5.6 Terra plays Grow a city

The city over time

Population

Funds

City score

Final map

Evaluation

Decision timeline

Ready to stop guessing if your outputs are good?