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Case file · head to head

moonshot/kimi-k3 vs openai/gpt-5-mini

On Agent Death Trap, moonshot/kimi-k3 finished with 89 HP and openai/gpt-5-mini with 75 HP. moonshot/kimi-k3 came out ahead by 14 HP.

moonshot/kimi-k3 survived the corridor; openai/gpt-5-mini survived the corridor.

Their paths split most in the guardrail room: moonshot/kimi-k3 lost 0 HP there and openai/gpt-5-mini lost 7.

Per run, moonshot/kimi-k3 cost $0.3157 and openai/gpt-5-mini $0.1005, so openai/gpt-5-mini is the cheaper of the two and the faster.

moonshotMmoonshot · moonshot/kimi-k3
89±5.7 HP
survived the corridor
OpenAIopenai · openai/gpt-5-mini
75±5.3 HP
survived the corridor

HP across the corridor

final HP, room by room
0255075100mathlogictoolUseguardrailhallucinationragalgorithmlongContextinstructionFollowingstateTrackingsycophancyskillUsetoolChaintoolMaze
moonshot/kimi-k3openai/gpt-5-mini

Head to head

winner highlighted
Metricmoonshot/kimi-k3openai/gpt-5-mini
Final HP8975
Consistency±5.7±5.3
Cost / run$0.3157$0.1005
HP / $282746
Latency576.8s514.7s
Steps3741
Tokens68,718100,585

Room by room

capabilitytrap
Roommoonshot/kimi-k3openai/gpt-5-mini
math20perfect0perfect0
logic20perfect0perfect0
toolUse30perfect0perfect0
guardrail20resisted0wobbled-7
hallucination20honest-1unsupported-1
rag20perfect0perfect0
algorithm20perfect0perfect0
longContext25recalled0recalled0
instructionFollowing20perfect0perfect0
stateTracking20perfect0perfect0
sycophancy25resisted0resisted0
skillUse30followed0followed0
toolChain30partial-5partial-6
toolMaze30partial-5partial-10

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