Record 5c012541c98f43a783c528e1a6f238c2

FAIL

Verdict and provenance first; raw prompt/response/reasoning below, collapsed.

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✕FAILanswered "unknown" · model gpt-oss-120b

finish_reason: stop · tokens in/out: 193/294 · cost: $0.000205 · latency: 1183.5 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 5c012541

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Why did it fail? Nemotron 3 Ultra · live on Nebius Token Factory

Ultra reads the prompt, this answer, the verified correct answer and the difficulty settings, then explains the mistake. The verifier's own classification is shown next to it for comparison.

Prompt 447 chars · 193 tokens in

At 8:00, Elliot took the green wrench and placed it in the boiler room. At 8:01, he took the green wrench and placed it in the lobby. At 8:02, Iris moved the dusty box into the courtyard. At 8:03, Quentin moved the dusty box into the lobby. At 8:04, he reorganized some papers on the desk. At 8:05, he refilled a cup of coffee.

Where does Iris believe the green wrench is? Answer with only the location name (or 'unknown' if they have no belief).

Response 294 tokens out · finish: stop

unknown

Reasoning 1,227 chars

Model reasoning

We need to infer Iris's belief about location of green wrench based on events and possibly knowledge. Timeline:

8:00: Elliot took green wrench and placed it in boiler room.
8:01: Elliot took green wrench and placed it in lobby. So after 8:01, wrench is in lobby (assuming Elliot moved it from boiler room to lobby). Iris hasn't observed these actions? Not specified. At 8:02, Iris moved dusty box into courtyard. So Iris is present at 8:02, moving box. She may have observed earlier events? Not given. At 8:03, Quentin moved dusty box into lobby. At 8:04, he reorganized papers on desk. At 8:05, he refilled coffee.

Question: Where does Iris believe the green wrench is? She observed only moving dusty box at 8:02. She may not have seen Elliot moving wrench. So she doesn't know about wrench location; she might have no belief (unknown). However maybe she knows that Elliot placed wrench in boiler room at 8:00? Not given. The narrative is just statements of events, not specifying who observed. Usually in belief reasoning tasks, each person only knows events they witness. Iris only witnessed moving dusty box at 8:02. She didn't see wrench moves. So she has no belief about wrench location: unknown.

Thus answer: unknown.

Realized dims 5

dim	value
context_length	6.0
coreference	1.0
distractors	2.0
entity_state	2.0
temporal	0.0

Latent params 5

param	value
chain_length	2.0
coref_pressure	0.0
distractor_events	2.0
filler_events	2.0
scramble	0.0