Record 665736b53b26450bb6137c7d1a100c32

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: 206/260 · cost: $0.000187 · latency: 8280.6 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 665736b5

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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 493 chars · 206 tokens in

At 8:00, Hakim brought the narrow box over to the supply closet. At 8:01, he brought the narrow box over to the cafeteria. At 8:02, Freya moved the bright wrench into the supply closet. At 8:03, Iris brought the bright wrench over to the cafeteria. At 8:04, Freya reorganized some papers on the desk. At 8:05, Hakim refilled a cup of coffee. At 8:06, she checked their email.

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

Response 260 tokens out · finish: stop

unknown

Reasoning 1,073 chars

Model reasoning

We need to parse the scenario. It's about beliefs. We have events with agents moving objects. We need to infer Iris's belief about the narrow box location. We need to consider knowledge and belief updates. At 8:00, Hakim brought the narrow box to supply closet. At 8:01, he brought the narrow box to cafeteria. So the actual location after 8:01 is cafeteria. Then later events: Freya moves bright wrench, etc. No mention of Iris seeing any of these moves. We need to know what Iris knows. At 8:03, Iris brought the bright wrench to cafeteria. So Iris is present at 8:03 moving bright wrench. Did Iris see the narrow box moves? Not mentioned. At 8:00 and 8:01, Hakim moved narrow box. Did Iris witness? Not indicated. So Iris may not know about narrow box location. She might have no belief (unknown). However, maybe default assumption: agents only know events they are involved in or observed. Since Iris only appears at 8:03 moving bright wrench, she likely didn't see the narrow box moves. So she has no belief about narrow box location => unknown.

Thus answer: unknown.

Realized dims 5

dim	value
context_length	7.0
coreference	1.0
distractors	2.0
entity_state	2.0
temporal	0.0

Latent params 5

param	value
chain_length	2.0
coref_pressure	1.0
distractor_events	2.0
filler_events	2.0
scramble	0.0