Record 9025983c66d64e80824100415978796d

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: 195/262 · cost: $0.000186 · latency: 5365.1 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 9025983c

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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 472 chars · 195 tokens in

At 8:00, Noor took the blue folder and placed it in the kitchen. At 8:01, Lena carried the blue folder to the observation deck. At 8:02, Noor took the shiny folder and placed it in the observation deck. At 8:03, Lena brought the shiny folder over to the lobby. At 8:04, Nolan reorganized some papers on the desk. At 8:05, Noor refilled a cup of coffee.

Where does Nolan believe the blue folder is? Answer with only the location name (or 'unknown' if they have no belief).

Response 262 tokens out · finish: stop

unknown

Reasoning 1,128 chars

Model reasoning

We need to infer Nolan's belief about location of blue folder based on events and his perspective. We have timeline of actions by Noor, Lena, Nolan. Nolan reorganized some papers on the desk at 8:04. He may have observed prior movements? We need to consider what Nolan knows. At 8:04, he reorganized papers on the desk. Did he see the blue folder being moved? The narrative doesn't state Nolan's observations. Typically, unless specified, agents only know actions they performed or observed. Nolan only performed an action at 8:04, reorganizing papers on the desk. He may not have seen the earlier moves. So his belief about blue folder location is unknown. However, could he infer that the blue folder is on the desk because he reorganized papers there? But the blue folder was moved to kitchen at 8:00, then to observation deck at 8:01. At 8:04, he reorganized papers on the desk; maybe he sees the blue folder there? But the story doesn't say he saw it. Usually belief tracking: agents only know about events they are present for. No mention of Nolan being present at earlier moves. So his belief is unknown. 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