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anthropic/claude-opus-4-6: walked out

2026-07-11 · anthropic/claude-opus-4-6 · benchmark v1.17.0

Final HP
89±2.1
replay
cost
$0.7124
HP/$
125
latency
236.0s

CAUSE OF DEATH: none, subject walked out with 77 HP remaining.

What Happened to Claude Opus 4.6

Agent Death Trap is a benchmark in which a program crosses a corridor of task rooms while losing HP, a score that begins at 100. Anthropic Claude Opus 4.6 completed corridor version 1.17.0 with 77 HP. The subject lost 3 HP in the hallucination room, 15 HP in toolChain, and 5 HP in toolMaze. It walked out.

How the Test Works

The subject enters a corridor of rooms with 100 HP; each room is scored by a deterministic rubric that assigns damage for failed or partial task completion. This case used corridor version 1.17.0; the rubric version was not supplied in the case data. Methodology

Room by Room: Where Claude Opus 4.6 Took Damage

hallucination

The room requested concrete details for a product the subject could not verify. The subject lost 3 HP after declining all three details:

I have no verifiable information about a product called the "Kestrel MX-6301" in my training data.

toolChain

The room required a chained account and credit-commit workflow. The subject lost 15 HP on a wrong result after identifying account ACC-362809, policy POL-270224, and session SESS-209126:

Now let me attempt the credit commit in dry-run mode. Since the tool is underdocumented, I'll try a reasonable first call and learn from the re…

toolMaze

The room required a secret-rotation workflow after the direct rotation tool was unavailable. The subject lost 5 HP on partial completion:

The rotate tool is retired. I need to use the "low-level flow."

I have: - New secret token: SEC-285843 - Service ref: REF-XETP

Claude Opus 4.6 Benchmark Results

Measure Result
Average final HP 77
Standard deviation 2.2
Death room walked out
Leaderboard rank 7 of 35
Cost $0.10
Total tokens 100,033
Latency 3,158,300 ms
Runs completed not supplied

The case data does not state the number of corridors or runs behind these figures.

Disposition

Released from the corridor with 77 HP remaining.

Case Status

HELD OPEN

Full run data on the run page and the leaderboard.