TIS-100 Bench / Puzzles / Sequence Counter
TIS-100 Bench: Sequence Counter
31904 Easy Sequence algorithms Arithmetic construction Built-in puzzle · TIS-100 Bench report →
Compute the sum and length of each zero-terminated sequence. The delimiter resets both running totals.
In TIS-100 Bench , 16 LLMs each had one attempt at this TIS-100 puzzle, with 10 minutes to find a working program and keep improving it, without seeing the community leaderboard . 14 of 16 models solved it. No model found a new Pareto-frontier point beyond the community leaderboard.
14 / 16 models solved it
195 best LLM cycles (112 community)
0 new frontier points
Records
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
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Select a point with the mouse or keyboard to inspect its scores and program.
Sequence Counter: cycles against instructions for the community frontier and each model’s frontier points 101 150 222 330 491 12 17 26 39 58 Cycles (log scale) Instructions Muse Wonder 1.0: 233 cycles, 4 nodes, 20 instructions Muse Wonder 1.0: 213 cycles, 5 nodes, 21 instructions Muse Wonder 1.0: 195 cycles, 5 nodes, 27 instructions Muse Wonder 1.0: 215 cycles, 4 nodes, 26 instructions GPT-6.1 Sol: 288 cycles, 4 nodes, 20 instructions GPT-6.1 Sol: 223 cycles, 6 nodes, 20 instructions GPT-6.1 Sol: 268 cycles, 5 nodes, 19 instructions GPT-6.1 Sol: 203 cycles, 8 nodes, 22 instructions GPT-6.1 Sol: 213 cycles, 6 nodes, 21 instructions GPT-6.1 Sol: 251 cycles, 5 nodes, 23 instructions GPT-6.1 Sol: 245 cycles, 5 nodes, 27 instructions Sonnet 5.5: 233 cycles, 4 nodes, 19 instructions Sonnet 5.5: 213 cycles, 4 nodes, 23 instructions Sonnet 5.5: 214 cycles, 4 nodes, 21 instructions Sonnet 5.5: 204 cycles, 4 nodes, 24 instructions Sonnet 5.5: 203 cycles, 4 nodes, 25 instructions Kimi K3.1 Pro: 204 cycles, 6 nodes, 24 instructions Kimi K3.1 Pro: 250 cycles, 5 nodes, 19 instructions Kimi K3.1 Pro: 260 cycles, 4 nodes, 19 instructions GPT-6 Astra: 245 cycles, 4 nodes, 16 instructions GPT-6 Astra: 217 cycles, 4 nodes, 17 instructions GPT-6 Astra: 214 cycles, 5 nodes, 17 instructions GPT-6 Astra: 224 cycles, 5 nodes, 16 instructions GPT-6 Astra: 205 cycles, 5 nodes, 19 instructions GPT-6 Astra: 215 cycles, 4 nodes, 19 instructions GPT-6 Astra: 208 cycles, 4 nodes, 20 instructions Gemini 3.8 Flash: 236 cycles, 7 nodes, 23 instructions Gemini 3.8 Flash: 376 cycles, 4 nodes, 21 instructions Gemini 3.8 Flash: 307 cycles, 6 nodes, 21 instructions Gemini 3.8 Flash: 327 cycles, 5 nodes, 21 instructions Gemini 3.8 Flash: 232 cycles, 6 nodes, 25 instructions Gemini 3.8 Flash: 218 cycles, 8 nodes, 53 instructions Gemini 4 Argon: 317 cycles, 4 nodes, 17 instructions Gemini 4 Argon: 353 cycles, 4 nodes, 16 instructions Gemini 4 Argon: 300 cycles, 4 nodes, 22 instructions Gemini 4 Argon: 240 cycles, 6 nodes, 22 instructions Gemini 4 Argon: 219 cycles, 6 nodes, 30 instructions Opus 5.5: 385 cycles, 4 nodes, 19 instructions Opus 5.5: 319 cycles, 5 nodes, 20 instructions Opus 5.5: 327 cycles, 4 nodes, 20 instructions Opus 5.5: 224 cycles, 6 nodes, 21 instructions DeepSeek V4.1 Flash: 336 cycles, 4 nodes, 24 instructions DeepSeek V4.1 Flash: 266 cycles, 5 nodes, 21 instructions DeepSeek V4.1 Flash: 237 cycles, 6 nodes, 22 instructions Muse Spark 1.3: 446 cycles, 4 nodes, 25 instructions Muse Spark 1.3: 251 cycles, 6 nodes, 22 instructions Muse Spark 1.3: 393 cycles, 5 nodes, 24 instructions gpt-6-luna: 251 cycles, 6 nodes, 20 instructions gpt-6-luna: 288 cycles, 5 nodes, 19 instructions Fable 5.1: 278 cycles, 6 nodes, 25 instructions Fable 5.1: 279 cycles, 6 nodes, 22 instructions Fable 5.1: 361 cycles, 4 nodes, 20 instructions Fable 5.1: 298 cycles, 5 nodes, 18 instructions Haiku 5.5: 290 cycles, 5 nodes, 21 instructions Haiku 5.5: 310 cycles, 4 nodes, 20 instructions Grok 4.7: 321 cycles, 6 nodes, 26 instructions Community leaderboard Model frontier point New frontier pointNodes are not shown; lower is better on both axes.
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Puzzle MetricBest cycles Fewest nodes Fewest instructions In-game record proximity Program runs Log score axis
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Best in-game score so far, before independent testing. Each score can come from a different program, and lines stop when the episode ends.
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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 .
Muse Wonder 1.0 Fewest cycles 195 cycles · 5 nodes · 27 instructions 31904.195-5-27.txt on GitHub
Node 4 L: MOV UP, ACC
JEZ Z
MOV ACC, DOWN
MOV UP, ACC
JEZ Z
MOV ACC, DOWN
JMP L
Z: MOV -999, DOWN
MOV -999, RIGHTNode 8 L: ADD UP
JLZ E
MOV 1, RIGHT
ADD UP
JLZ E
MOV 1, RIGHT
JMP L
E: ADD 999
MOV ACC, DOWN
MOV 0, ACCNode 9 L: ADD ANY
JLZ E
JMP L
E: ADD 999
MOV ACC, DOWN
MOV 0, ACCGPT-6 Astra Fewest nodes 208 cycles · 4 nodes · 20 instructions 31904.208-4-20.txt on GitHub
Node 1 MOV UP ACC
JNZ O
MOV 999 ACC
O: MOV ACC DOWNNode 4 MOV -999 ACC
ADD UP
JLZ C
JMP E
C: MOV 1 DOWN
ADD UP
JLZ C
E: MOV 3 DOWN
MOV ACC DOWNNode 8 L: JRO UP
ADD 1
JMP L
MOV UP DOWN
MOV ACC RIGHT
MOV 0 ACCGPT-6 Astra Fewest instructions 224 cycles · 5 nodes · 16 instructions 31904.224-5-16.txt on GitHub
Node 1 MOV UP ACC
JNZ O
MOV 999 ACC
O: MOV ACC DOWNNode 4 MOV -999 ACC
L: MOV -1 RIGHT
ADD UP
JLZ L
MOV 1 RIGHT
MOV ACC DOWNNode 5 MOV -2 ACC
ADD 1
JRO LEFT
MOV ACC DOWN
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