TIS-100 Bench: Sequence Normalizer

Find a sequence's minimum, then subtract it from every element. The terminator is −1, so zero is valid data.

In TIS-100 Bench, 16 LLMs each had one attempt at this TIS-100 puzzle, with 45 minutes to find a working program and keep improving it, without seeing the community leaderboard. 15 of 16 models solved it. No model found a new Pareto-frontier point beyond the community leaderboard.

15 / 16models solved it
494best LLM cycles (317 community)
0new frontier points

Records

ScoreCommunity bestBest LLMModel
Cycles317494Opus 5.5 · +56%
Nodes33Gemini 4 Argon Ties record
Instructions2731Haiku 5.5 · +15%

Community records from the community leaderboard when we froze it. A record counts only after fresh-game replay and 100,000 passing random tests.

Pareto frontier

Pareto explorer

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Every model

ModelSolvedBest cyclesBest nodesBest instructionsNew frontier points
01Opus 5.5Yes494431—
02Gemini 4 ArgonYes496333—
03Fable 5.1Yes499440—
04GPT-6.1 SolYes511436—
05Sonnet 5.5Yes547437—
06GPT-6 AstraYes554432—
07Haiku 5.5Yes586431—
08GLM-5.3Yes615436—
09Kimi K3.1 ProYes616441—
10Gemini 3.8 FlashYes628439—
11GPT-6 LunaYes633446—
12DeepSeek V4.1 FlashYes636443—
13Muse Wonder 1.0Yes651442—
14Grok 4.7Yes685665—
15Muse Spark 1.3Yes926663—
16MiMo-V2.6-ProNo————

Best scores can come from different programs. New frontier points are not matched or beaten on all three scores by any community program.

Best model programs

These programs are in TIS-100 save format and released under the MIT License. All of this puzzle’s model programs are on GitHub and Hugging Face.

Opus 5.5 Fewest cycles

494 cycles · 7 nodes · 72 instructionsNEXUS.10.656.5.494-7-72.txt on GitHub

Opus 5.5 program running on NEXUS.10.656.5 in TIS-100
Node 0
MOV 12, ACC
C: JRO DOWN
SUB 1
JMP C
MOV ACC, DOWN
Node 1
MOV UP, ACC
MOV ACC, DOWN
MOV ACC, RIGHT
Node 3
MOV 999, ACC
L: MOV 1, UP
SUB RIGHT
JGZ N
ADD RIGHT
JMP L
N: MOV RIGHT, ACC
JLZ E
SAV
JMP L
E: MOV 3, UP
SWP
MOV ACC, RIGHT
MOV UP, RIGHT
Node 4
MOV RIGHT, NIL
L: MOV UP, ACC
MOV ACC, LEFT
MOV ACC, LEFT
JLZ E
MOV UP, ACC
MOV ACC, LEFT
MOV ACC, LEFT
JLZ E
JMP L
E: MOV LEFT, RIGHT
MOV LEFT, RIGHT
Node 5
MOV ACC, LEFT
MOV LEFT, DOWN
MOV UP, RIGHT
JRO LEFT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV UP, RIGHT
MOV ACC, DOWN
Node 7
S: MOV UP, ACC
NEG
MOV UP, RIGHT
L: ADD RIGHT
JLZ E
MOV ACC, DOWN
SUB RIGHT
JMP L
E: MOV -1, DOWN
Node 8
S: MOV LEFT, NIL
P: MOV UP, ACC
MOV ACC, LEFT
JLZ S
MOV ACC, LEFT
MOV UP, ACC
MOV ACC, LEFT
JLZ S
MOV ACC, LEFT
MOV UP, ACC
MOV ACC, LEFT
JLZ S
MOV ACC, LEFT
JMP P

Gemini 4 Argon Fewest nodes

1,199 cycles · 3 nodes · 35 instructionsNEXUS.10.656.5.1199-3-35.txt on GitHub

Gemini 4 Argon program running on NEXUS.10.656.5 in TIS-100
Node 1
W: ADD 1
JLZ W
MOV UP, ACC
ADD 1
MOV ACC, RIGHT
JEZ Z
MOV 68, ACC
Z: SUB 69
Node 5
L1: MOV ACC, RIGHT
MOV UP, ACC
MOV ACC, DOWN
NEG
MOV ACC, DOWN
JLZ L1
L2: MOV ACC, UP
MOV RIGHT, ACC
JLZ L2
L3: MOV UP, ACC
MOV ACC, DOWN
JLZ L3
Node 7
MOV -999, ACC
L: SAV
B: ADD UP
JLZ NEW
ADD UP
JMP B
NEW: MOV UP, ACC
JLZ L
O: SWP
SAV
SUB UP
JLZ D
MOV ACC, DOWN
JMP O
D: MOV -1, DOWN

Haiku 5.5 Fewest instructions

706 cycles · 4 nodes · 31 instructionsNEXUS.10.656.5.706-4-31.txt on GitHub

Haiku 5.5 program running on NEXUS.10.656.5 in TIS-100
Node 1
MOV UP, ACC
MOV ACC, DOWN
MOV ACC, DOWN
MOV ACC, RIGHT
Node 4
MOV RIGHT, ACC
L: SUB UP
JLZ KEEP
MOV UP, ACC
JLZ END
SAV
JMP L
KEEP: ADD UP
JMP L
END: SWP
NEG
MOV ACC, RIGHT
Node 5
MOV 999, LEFT
S: MOV -999, UP
M: MOV LEFT, ACC
MOV UP, RIGHT
L: SAV
ADD UP
JLZ D
MOV ACC, RIGHT
SWP
JMP L
D: MOV RIGHT, ACC
MOV ACC, DOWN
JGZ D
JEZ D
Node 7
MOV UP, DOWN