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Record c1b85f09a78740b6bbaf0ce4329d07da

FAIL

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

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

finish_reason: stop · tokens in/out: 229/166 · cost: $0.000134 · latency: 8413.1 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: c1b85f09

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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 597 chars · 229 tokens in
At 8:00, Dexter carried the shiny tablet to the courtyard. At 8:01, Rafi carried the shiny tablet to the greenhouse. At 8:02, Dexter carried the shiny tablet to the utility closet. At 8:03, Rafi took the shiny tablet and placed it in the lobby. At 8:04, Dexter took the cracked wrench and placed it in the utility closet. At 8:05, he moved the cracked wrench into the south stairwell. At 8:06, Rafi reorganized some papers on the desk. At 8:07, Elena refilled a cup of coffee.

Where does Elena believe the shiny tablet is? Answer with only the location name (or 'unknown' if they have no belief).
Response 166 tokens out · finish: stop
unknown
Reasoning 701 chars
Model reasoning
We need to infer Elena's belief about the shiny tablet location based on events and possibly knowledge. We have timeline of actions by Dexter, Rafi, Elena. Elena only appears at 8:07 refilling coffee. She hasn't observed any tablet moves unless she saw earlier? We need to consider what Elena knows. She might have observed earlier events? Not given. Usually belief reasoning: If Elena didn't see any moves, she might believe the tablet is where she last saw it. Did she see any? Not mentioned. So likely unknown? But maybe she saw Rafi place it in lobby at 8:03? Not stated. Only "refilled a cup of coffee". No mention of seeing tablet. So she has no belief about tablet location => answer "unknown".
Realized dims 5
dimvalue
context_length8.0
coreference1.0
distractors2.0
entity_state4.0
temporal0.0
Latent params 5
paramvalue
chain_length4.0
coref_pressure0.0
distractor_events2.0
filler_events2.0
scramble0.0