SpaceChem Bench: Teleporters

Inputs: α Tungsten Trioxide (W / O). Output: ψ Tungsten Nanospike ((W)n) ×10. Features: Max reactors: 3, Quantum reactor, Recycler.

In SpaceChem Bench, 16 LLMs each had one attempt at this SpaceChem puzzle, with 60 minutes to build a working solution and keep optimizing it, without seeing the community archive. 5 of 16 models solved it. No model found a new Pareto-frontier point beyond the frozen community archive.

5 / 16models solved it
1,308best LLM cycles (983 community)
0new frontier points

Records

ScoreCommunity bestBest LLMModel
Cycles9831,308GPT-6.1 Sol · +33%
Reactors22GPT-6 Astra Ties record
Symbols2744Gemini 4 Argon · +63%

Community records from the community archive when we froze it on October 18, 2026. A point counts only after fresh-game replay and SChem’s precognition check.

Pareto frontier

Pareto explorer

Lower is better ↙
Loading interactive Pareto explorer…
Community archiveModel frontier pointNew frontier point
Select a point with the mouse or keyboard to inspect its scores and reactor blueprint.

Search over time

Loading puzzle trajectories…

Every model

ModelSolvedBest cyclesBest reactorsBest symbolsNew frontier points
01GPT-6.1 SolYes1,308251—
02Opus 5.5Yes1,637258—
03GPT-6 AstraYes3,538259—
04Gemini 4 ArgonYes3,866244—
05Sonnet 5.5Yes5,796296—
06DeepSeek V4.1 FlashNo————
07Fable 5.1No————
08GLM-5.3No————
09GPT-6 LunaNo————
10Gemini 3.8 FlashNo————
11Grok 4.7No————
12Haiku 5.5No————
13Kimi K3.1 ProNo————
14MiMo-V2.6-ProNo————
15Muse Spark 1.3No————
16Muse Wonder 1.0No————

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

Best model solutions

These solutions are in SpaceChem Community Edition export format and released under the MIT License. All of this puzzle’s model solutions are on GitHub and Hugging Face.

GPT-6.1 Sol Fewest cyclesFewest reactors

1,308 cycles · 2 reactors · 53 symbolsquantum_4.1308-2-53.txt on GitHub

Layout (extract of 2)

α β ψ ω 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 ↓ → ↓ ← ↓ → ← ↑ → ↑ ← ↑ → ↑ ↓ ← S↑ S↓ SWAP SWAP SWAP SWAP IN β SWAP SWAP SWAP GRAB SWAP OUT ω DROP GRAB OUT ω OUT ψ OUT ω

Running in the game

GPT-6.1 Sol solution running on quantum_4 in SpaceChem
SpaceChem Community Edition export (quantum_4.1308-2-53.txt)
SOLUTION:Teleporters,Player,0-0-0
COMPONENT:'drag-quantum-reactor',10,14,'extract'
MEMBER:'instr-start',-90,0,32,8,7,0,0
MEMBER:'instr-start',90,0,128,0,1,0,0
MEMBER:'feature-bonder',-1,0,1,4,0,0,0
MEMBER:'feature-bonder',-1,0,1,4,1,0,0
MEMBER:'feature-bonder',-1,0,1,4,3,0,0
MEMBER:'feature-bonder',-1,0,1,4,4,0,0
MEMBER:'feature-sensor',-1,0,1,2,2,0,0
MEMBER:'feature-tunnel',-1,0,1,1,3,0,0
MEMBER:'feature-tunnel',-1,0,1,7,4,0,0
MEMBER:'instr-arrow',90,0,64,0,1,0,0
MEMBER:'instr-arrow',0,0,64,0,2,0,0
MEMBER:'instr-arrow',90,0,64,1,0,0,0
MEMBER:'instr-arrow',180,0,64,1,1,0,0
MEMBER:'instr-arrow',90,0,64,1,2,0,0
MEMBER:'instr-arrow',0,0,64,1,5,0,0
MEMBER:'instr-arrow',180,0,64,2,0,0,0
MEMBER:'instr-arrow',-90,0,64,2,3,0,0
MEMBER:'instr-arrow',0,0,64,2,4,0,0
MEMBER:'instr-arrow',-90,0,64,2,5,0,0
MEMBER:'instr-arrow',180,0,64,3,3,0,0
MEMBER:'instr-arrow',-90,0,64,3,4,0,0
MEMBER:'instr-swap',-1,0,128,0,2,0,0
MEMBER:'instr-swap',-1,0,128,1,1,0,0
MEMBER:'instr-swap',-1,0,128,1,2,0,0
MEMBER:'instr-swap',-1,0,128,1,3,0,0
MEMBER:'instr-input',-1,1,128,1,4,0,0
MEMBER:'instr-swap',-1,0,128,2,2,0,0
MEMBER:'instr-swap',-1,0,128,2,3,0,0
MEMBER:'instr-swap',-1,0,128,2,4,0,0
MEMBER:'instr-grab',-1,1,128,2,5,0,0
MEMBER:'instr-swap',-1,0,128,3,3,0,0
MEMBER:'instr-arrow',0,0,16,7,2,0,0
MEMBER:'instr-arrow',-90,0,16,7,5,0,0
MEMBER:'instr-arrow',90,0,16,8,2,0,0
MEMBER:'instr-arrow',180,0,16,8,5,0,0
MEMBER:'instr-output',-1,1,32,7,2,0,0
MEMBER:'instr-grab',-1,2,32,7,3,0,0
MEMBER:'instr-grab',-1,1,32,7,4,0,0
MEMBER:'instr-output',-1,1,32,7,5,0,0
MEMBER:'instr-output',-1,0,32,8,2,0,0
MEMBER:'instr-output',-1,1,32,8,4,0,0
PIPE:0,4,1
PIPE:0,5,1
PIPE:0,6,1
PIPE:0,7,1
PIPE:0,8,1
PIPE:0,9,1
PIPE:0,10,1
PIPE:0,11,1
PIPE:0,12,1
PIPE:0,13,1
PIPE:0,14,1
PIPE:0,15,1
PIPE:0,15,0
PIPE:0,15,-1
PIPE:1,4,2
PIPE:1,5,2
PIPE:1,6,2
PIPE:1,7,2
PIPE:1,8,2
PIPE:1,9,2
PIPE:1,10,2
PIPE:1,11,2
PIPE:1,12,2
PIPE:1,13,2
PIPE:1,14,2
PIPE:1,15,2
PIPE:1,15,3
PIPE:1,15,4
COMPONENT:'drag-quantum-reactor',17,3,'assemble'
MEMBER:'instr-start',-90,0,128,1,4,0,0
MEMBER:'instr-start',-90,0,32,5,5,0,0
MEMBER:'feature-bonder',-1,0,1,6,2,0,0
MEMBER:'feature-bonder',-1,0,1,7,2,0,0
MEMBER:'feature-bonder',-1,0,1,0,7,0,0
MEMBER:'feature-bonder',-1,0,1,1,7,0,0
MEMBER:'feature-sensor',-1,0,1,9,2,0,0
MEMBER:'feature-tunnel',-1,0,1,1,3,0,0
MEMBER:'feature-tunnel',-1,0,1,6,3,0,0
MEMBER:'instr-arrow',0,0,64,0,1,0,0
MEMBER:'instr-arrow',-90,0,64,0,3,0,0
MEMBER:'instr-arrow',180,0,64,1,3,0,0
MEMBER:'instr-arrow',90,0,64,2,1,0,0
MEMBER:'instr-arrow',180,0,64,2,3,0,0
MEMBER:'instr-bond',-1,0,128,0,2,0,0
MEMBER:'instr-swap',-1,0,128,0,3,0,0
MEMBER:'instr-sensor',90,0,128,1,1,0,74
MEMBER:'instr-output',-1,0,128,1,2,0,0
MEMBER:'instr-input',-1,0,128,1,3,0,0
MEMBER:'instr-arrow',90,0,16,5,1,0,0
MEMBER:'instr-arrow',0,0,16,5,2,0,0
MEMBER:'instr-arrow',180,0,16,6,1,0,0
MEMBER:'instr-arrow',-90,0,16,6,3,0,0
MEMBER:'instr-arrow',90,0,16,7,2,0,0
MEMBER:'instr-arrow',180,0,16,7,3,0,0
MEMBER:'instr-bond',-1,0,32,5,1,0,0
MEMBER:'instr-bond',-1,0,32,6,1,0,0
MEMBER:'instr-grab',-1,0,32,6,2,0,0
MEMBER:'instr-grab',-1,1,32,6,3,0,0
MEMBER:'instr-grab',-1,2,32,7,2,0,0
PIPE:0,4,1
PIPE:0,5,1
PIPE:1,4,2
COMPONENT:'drag-spaceship-input',4,18,''
PIPE:0,2,0
PIPE:0,3,0
PIPE:0,4,0
PIPE:0,5,0
PIPE:0,5,-1
PIPE:0,5,-2
COMPONENT:'drag-qpipe-out',12,4,''
PIPE:0,3,0
PIPE:0,4,0

Gemini 4 Argon Fewest symbols

4,822 cycles · 2 reactors · 44 symbolsquantum_4.4822-2-44.txt on GitHub

Layout (Reactor 1 of 2)

α β ψ ω 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 ↓ → ← ↑ ↓ → ↓ → ← ↑ ← ↑ ↓ → S← S↓ GRAB ?O→ IN α GRAB DROP GRAB DROP DROP SWAP SWAP OUT ψ DROP GRAB GRAB B− OUT ω

Running in the game

Gemini 4 Argon solution running on quantum_4 in SpaceChem
SpaceChem Community Edition export (quantum_4.4822-2-44.txt)
SOLUTION:Teleporters,Player,0-0-0
COMPONENT:'drag-qpipe-out',12,4,''
PIPE:0,3,0
PIPE:0,4,0
COMPONENT:'drag-quantum-reactor',10,17,''
MEMBER:'instr-start',180,0,128,4,0,0,0
MEMBER:'instr-start',90,0,32,3,3,0,0
MEMBER:'feature-bonder',-1,0,1,2,2,0,0
MEMBER:'feature-bonder',-1,0,1,3,2,0,0
MEMBER:'feature-bonder',-1,0,1,2,3,0,0
MEMBER:'feature-bonder',-1,0,1,3,3,0,0
MEMBER:'feature-sensor',-1,0,1,2,1,0,0
MEMBER:'feature-tunnel',-1,0,1,3,4,0,0
MEMBER:'feature-tunnel',-1,0,1,7,4,0,0
MEMBER:'instr-arrow',90,0,64,1,0,0,0
MEMBER:'instr-arrow',0,0,64,1,4,0,0
MEMBER:'instr-arrow',180,0,64,7,0,0,0
MEMBER:'instr-arrow',-90,0,64,7,4,0,0
MEMBER:'instr-sensor',0,0,128,1,1,0,8
MEMBER:'instr-input',-1,0,128,1,2,0,0
MEMBER:'instr-grab',-1,1,128,2,1,0,0
MEMBER:'instr-grab',-1,2,128,3,2,0,0
MEMBER:'instr-grab',-1,1,128,3,3,0,0
MEMBER:'instr-grab',-1,2,128,3,4,0,0
MEMBER:'instr-swap',-1,0,128,4,4,0,0
MEMBER:'instr-output',-1,0,128,7,2,0,0
MEMBER:'instr-grab',-1,2,128,7,3,0,0
MEMBER:'instr-grab',-1,1,128,7,4,0,0
MEMBER:'instr-arrow',90,0,16,2,1,0,0
MEMBER:'instr-arrow',0,0,16,2,4,0,0
MEMBER:'instr-arrow',90,0,16,3,2,0,0
MEMBER:'instr-arrow',0,0,16,3,5,0,0
MEMBER:'instr-arrow',180,0,16,4,1,0,0
MEMBER:'instr-arrow',-90,0,16,4,5,0,0
MEMBER:'instr-arrow',180,0,16,5,2,0,0
MEMBER:'instr-arrow',-90,0,16,5,4,0,0
MEMBER:'instr-grab',-1,1,32,2,3,0,0
MEMBER:'instr-grab',-1,1,32,3,2,0,0
MEMBER:'instr-grab',-1,2,32,3,4,0,0
MEMBER:'instr-bond',-1,1,32,4,1,0,0
MEMBER:'instr-output',-1,1,32,4,2,0,0
MEMBER:'instr-swap',-1,0,32,4,4,0,0
MEMBER:'instr-arrow',90,0,64,3,1,0,0
MEMBER:'instr-arrow',0,0,64,3,4,0,0
PIPE:0,4,1
PIPE:0,5,1
PIPE:0,6,1
PIPE:0,7,1
PIPE:0,8,1
PIPE:0,9,1
PIPE:0,10,1
PIPE:0,11,1
PIPE:0,12,1
PIPE:0,13,1
PIPE:0,14,1
PIPE:0,14,0
PIPE:0,15,0
PIPE:0,15,-1
PIPE:0,15,-2
PIPE:0,15,-3
PIPE:0,15,-4
PIPE:1,4,2
PIPE:1,5,2
PIPE:1,6,2
PIPE:1,7,2
PIPE:1,8,2
PIPE:1,9,2
PIPE:1,10,2
PIPE:1,11,2
PIPE:1,12,2
PIPE:1,13,2
PIPE:1,14,2
PIPE:1,15,2
COMPONENT:'drag-spaceship-input',4,18,''
PIPE:0,2,0
PIPE:0,3,0
PIPE:0,4,0
PIPE:0,5,0
COMPONENT:'drag-quantum-reactor',17,3,''
MEMBER:'instr-start',180,0,32,0,6,0,0
MEMBER:'instr-start',180,0,128,9,1,0,0
MEMBER:'feature-bonder',-1,0,1,7,4,0,0
MEMBER:'feature-bonder',-1,0,1,7,3,0,0
MEMBER:'feature-bonder',-1,0,1,7,2,0,0
MEMBER:'feature-bonder',-1,0,1,0,7,0,0
MEMBER:'feature-sensor',-1,0,1,7,0,0,0
MEMBER:'feature-tunnel',-1,0,1,1,3,0,0
MEMBER:'feature-tunnel',-1,0,1,8,4,0,0
MEMBER:'instr-arrow',0,0,64,7,1,0,0
MEMBER:'instr-arrow',-90,0,64,7,4,0,0
MEMBER:'instr-arrow',90,0,64,8,1,0,0
MEMBER:'instr-arrow',180,0,64,8,4,0,0
MEMBER:'instr-bond',-1,0,128,7,1,0,0
MEMBER:'instr-bond',-1,0,128,7,2,0,0
MEMBER:'instr-grab',-1,2,128,7,3,0,0
MEMBER:'instr-bond',-1,0,128,7,4,0,0
MEMBER:'instr-output',-1,0,128,8,0,0,0
MEMBER:'instr-sensor',-90,0,128,8,1,0,74
MEMBER:'instr-input',-1,0,128,8,2,0,0
MEMBER:'instr-swap',-1,0,128,8,3,0,0
MEMBER:'instr-grab',-1,1,128,8,4,0,0
MEMBER:'instr-arrow',90,0,64,8,0,0,0
PIPE:0,4,1
PIPE:0,5,1
PIPE:1,4,2