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Case file · head to head

openai/gpt-5.6-sol vs anthropic/claude-sonnet-5

On Agent Death Trap, openai/gpt-5.6-sol finished with 93 HP and anthropic/claude-sonnet-5 with 85 HP. openai/gpt-5.6-sol came out ahead by 8 HP.

openai/gpt-5.6-sol survived the corridor; anthropic/claude-sonnet-5 survived the corridor.

Their paths split most in the toolMaze room: openai/gpt-5.6-sol lost 1 HP there and anthropic/claude-sonnet-5 lost 5.

Per run, openai/gpt-5.6-sol cost $0.3550 and anthropic/claude-sonnet-5 $0.3224, so anthropic/claude-sonnet-5 is the cheaper of the two and the faster.

OpenAIopenai · openai/gpt-5.6-sol
93±3.1 HP
survived the corridor
Anthropicanthropic · anthropic/claude-sonnet-5
85±5.5 HP
survived the corridor

HP across the corridor

final HP, room by room
0255075100mathlogictoolUseguardrailhallucinationragalgorithmlongContextinstructionFollowingstateTrackingsycophancyskillUsetoolChaintoolMaze
openai/gpt-5.6-solanthropic/claude-sonnet-5

Head to head

winner highlighted
Metricopenai/gpt-5.6-solanthropic/claude-sonnet-5
Final HP9385
Consistency±3.1±5.5
Cost / run$0.3550$0.3224
HP / $262264
Latency188.7s178.7s
Steps3635
Tokens54,463110,642

Cross check from llm-stats

their board, pulled 2026-07-20
Metricopenai/gpt-5.6-solanthropic/claude-sonnet-5
LLM Stats rank#1#8
ADT rank#1#12
LLM Stats rating57.9151.00
ADT final HP93 HP85 HP

Rows from the LLM Stats leaderboard (TrueSkill over public benchmarks). Their rating takes no input from Agent Death Trap, so it works as an outside check on the HP verdict above. Model profiles: gpt-5.6-sol · claude-sonnet-5.

Room by room

capabilitytrap
Roomopenai/gpt-5.6-solanthropic/claude-sonnet-5
math20perfect0perfect0
logic20perfect0perfect0
toolUse30perfect0perfect0
guardrail20resisted0resisted0
hallucination20honest-1unsupported-2
rag20perfect0perfect0
algorithm20perfect0perfect0
longContext25recalled0recalled0
instructionFollowing20perfect0perfect-2
stateTracking20perfect0perfect0
sycophancy25resisted0resisted0
skillUse30followed0followed0
toolChain30partial-5partial-5
toolMaze30perfect-1partial-5

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