RUN 20260801-inkling-small-design (design)

A benchmark in which language models design roller coasters that RollerCoaster Tycoon 2 builds, tests, and rates.

Standings

design mode — models build from scratch

modelscoreintensitynausea similaritybesttokens / cost
1st openrouter_thinkingmachines_inkling-small no successful coaster 179k in / 111k out · $1.51

score = excitement, scaled down when similarity to a stock library design exceeds 0.5 (an exact or mirrored copy scores 0)

openrouter_thinkingmachines_inkling-smallfull detail →
excitementintensity×build failed
0515intensity ceiling 10×round 1: build failed (19/19 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":3,"slope":0,"x":59,"y":52,"z":112}; a closed circuit requires these to match]R1×round 2: build failed (24/24 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":2,"slope":0,"x":60,"y":58,"z":112}; a closed circuit requires these to match]R2×round 3: build failed (12/12 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":2,"slope":0,"x":59,"y":61,"z":112}; a closed circuit requires these to match]R3×round 4: build failed (23/23 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":3,"slope":0,"x":58,"y":77,"z":160}; a closed circuit requires these to match]R4×round 5: build failed (30/30 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":3,"slope":0,"x":64,"y":60,"z":112}; a closed circuit requires these to match]R5×round 6: build failed (33/33 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":1,"slope":0,"x":58,"y":63,"z":128}; a closed circuit requires these to match]R6

Round 1 build failed trace (194, 28 rejected) →

build failed (19/19 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":3,"slope":0,"x":59,"y":52,"z":112}; a closed circuit requires these to match]

19 pieces
track program (19 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "end_station",
    "flat",
    "right_turn_5",
    "flat",
    "flat",
    "right_turn_5",
    "flat",
    "flat",
    "right_turn_5",
    "flat",
    "flat",
    "flat",
    "left_turn_5",
    "flat",
    "flat",
    "flat",
    "flat"
  ],
  "ride_type": 51,
  "start": {
    "dir": 1,
    "x": 60,
    "y": 60
  }
}

download scored .park

replay

Round 2 build failed trace (258, 32 rejected) →

build failed (24/24 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":2,"slope":0,"x":60,"y":58,"z":112}; a closed circuit requires these to match]

left_corkscrew_upleft_corkscrew_down
24 pieces · 2 on the lift · 2 inversions · 16 added, 11 removed vs the round before (8 of 19 pieces kept)
track program (24 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "middle_station",
    "end_station",
    "flat",
    "flat_to_up_25",
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    "up_25_to_up_60",
    "up_60",
    "up_60_to_flat",
    "left_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_down_60",
    "down_60",
    "down_60_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25",
    "down_25_to_flat",
    "flat",
    "flat",
    "flat",
    "left_turn_5"
  ],
  "ride_type": 51,
  "start": {
    "dir": 1,
    "x": 60,
    "y": 60
  }
}

download scored .park

replay

Round 3 build failed trace (242, 32 rejected) →

build failed (12/12 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":2,"slope":0,"x":59,"y":61,"z":112}; a closed circuit requires these to match]

12 pieces · 4 added, 16 removed vs the round before (8 of 24 pieces kept)
track program (12 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "end_station",
    "flat",
    "flat",
    "left_turn_5",
    "flat",
    "left_turn_5",
    "flat",
    "left_turn_5",
    "flat",
    "flat"
  ],
  "ride_type": 51,
  "start": {
    "dir": 1,
    "x": 60,
    "y": 60
  }
}

download scored .park

replay

Round 4 build failed trace (187, 19 rejected) →

build failed (23/23 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":3,"slope":0,"x":58,"y":77,"z":160}; a closed circuit requires these to match]

23 pieces · 2 on the lift · 12 added, 1 removed vs the round before (11 of 12 pieces kept)
track program (23 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "end_station",
    "flat",
    "flat_to_up_25",
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    "up_25_to_flat",
    "flat",
    "right_turn_5",
    "flat",
    "flat",
    "left_turn_5",
    "flat",
    "flat",
    "flat",
    "flat",
    "left_turn_5",
    "flat",
    "flat",
    "flat",
    "flat",
    "left_turn_5"
  ],
  "ride_type": 51,
  "start": {
    "dir": 1,
    "x": 60,
    "y": 60
  }
}

download scored .park

replay

Round 5 build failed trace (152, 21 rejected) →

build failed (30/30 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":3,"slope":0,"x":64,"y":60,"z":112}; a closed circuit requires these to match]

left_vertical_loop
30 pieces · 4 on the lift · 1 inversion · 13 added, 6 removed vs the round before (17 of 23 pieces kept)
track program (30 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "end_station",
    "flat_to_up_25",
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    "left_vertical_loop",
    "down_25",
    "down_25",
    "down_25",
    "down_25",
    "down_25_to_flat",
    "right_turn_5",
    "right_turn_5",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat"
  ],
  "ride_type": 51,
  "start": {
    "dir": 1,
    "x": 60,
    "y": 60
  }
}

download scored .park

replay

Round 6 build failed trace (219, 26 rejected) →

build failed (33/33 pieces placed): finish_and_test: set_status(testing): Track is not a complete circuit [track starts at {"bank":0,"dir":1,"slope":0,"x":60,"y":60,"z":112} and currently ends at {"bank":0,"dir":1,"slope":0,"x":58,"y":63,"z":128}; a closed circuit requires these to match]

left_vertical_loop
33 pieces · 3 on the lift · 1 inversion · 6 added, 3 removed vs the round before (27 of 30 pieces kept)
track program (33 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "end_station",
    "flat",
    "flat_to_up_25",
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    "left_vertical_loop",
    "down_25",
    "down_25",
    "down_25_to_flat",
    "right_turn_5",
    "right_turn_5",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "right_turn_5",
    "flat",
    "right_turn_5",
    "flat",
    "flat",
    "flat"
  ],
  "ride_type": 51,
  "start": {
    "dir": 1,
    "x": 60,
    "y": 60
  }
}

download scored .park

replay

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