Record ad7e26ef8afc40779c625a7cd8d32d5f

FAIL

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

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

finish_reason: stop · tokens in/out: 716/574 · cost: $0.000452 · latency: 11018.3 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: ad7e26ef

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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 2,340 chars · 716 tokens in

At 8:00, Hugo brought the sturdy tablet over to the workshop. At 8:01, David brought the sturdy tablet over to the supply closet. At 8:02, Leon took the sturdy tablet and placed it in the reception area. At 8:03, Quinn took the sturdy tablet and placed it in the library. At 8:04, she carried the sturdy tablet to the supply closet. At 8:05, Piers brought the sturdy tablet over to the south stairwell. At 8:06, David brought the sturdy tablet over to the east wing. At 8:07, Kian took the sturdy tablet and placed it in the west wing. At 8:08, Hana took the sturdy tablet and placed it in the south stairwell. At 8:09, he moved the sturdy tablet into the storage room. At 8:10, Piers took the worn folder and placed it in the west wing. At 8:11, Leon moved the worn folder into the reception area. At 8:12, Hana brought the worn folder over to the courtyard. At 8:13, Quinn brought the worn folder over to the east wing. At 8:14, Lena took the worn folder and placed it in the reception area. At 8:15, David moved the worn folder into the south stairwell. At 8:16, Hugo brought the worn folder over to the east wing. At 8:17, he brought the worn folder over to the workshop. At 8:18, Lena took the worn folder and placed it in the east wing. At 8:19, Kian took the worn folder and placed it in the reception area. At 8:20, Hana took the worn folder and placed it in the courtyard. At 8:21, David took the worn folder and placed it in the west wing. At 8:22, Hugo took the worn folder and placed it in the library. At 8:23, Lena moved the worn folder into the east wing. At 8:24, David carried the worn folder to the library. At 8:25, she brought the worn folder over to the west wing. At 8:26, Hana took the worn folder and placed it in the library. At 8:27, Quinn moved the worn folder into the west wing. At 8:28, Lena moved the worn folder into the workshop. At 8:29, Hugo brought the worn folder over to the reception area. At 8:30, she reorganized some papers on the desk. At 8:31, Kian refilled a cup of coffee. At 8:32, Leon checked their email. At 8:33, Piers checked their email. At 8:34, David reorganized some papers on the desk. At 8:35, Hugo made a quick phone call. At 8:36, Kian made a quick phone call.

Where does Hugo believe the sturdy tablet is? Answer with only the location name (or 'unknown' if they have no belief).

Response 574 tokens out · finish: stop

workshop

Reasoning 2,271 chars

Model reasoning

We need to track Hugo's belief about the location of the sturdy tablet. The narrative includes many actions by various people moving the sturdy tablet. We need to infer what Hugo believes, based on his knowledge (i.e., what he has observed or been told). Usually in these puzzles, each person only knows actions they performed or observed? The problem: "Where does Hugo believe the sturdy tablet is?" We need to consider Hugo's perspective: He knows his own actions and possibly any actions he observed. The timeline: At 8:00, Hugo brought the sturdy tablet over to the workshop. So Hugo knows at 8:00 it's in workshop. Then at 8:01 David moves it to supply closet. Did Hugo see that? Not specified. Usually unless Hugo is present, he doesn't know. So Hugo's belief remains workshop unless he later learns. At 8:02 Leon moves to reception. Hugo likely not aware. At 8:03 Quinn moves to library. At 8:04 "she" (who?) carried the sturdy tablet to the supply closet. Who is "she"? The previous subject was Quinn (gender ambiguous). At 8:03 Quinn took the sturdy tablet and placed it in the library. At 8:04, she carried the sturdy tablet to the supply closet. Likely refers to Quinn (she). So Quinn moves from library to supply closet at 8:04. Hugo still unaware.

At 8:05 Piers moves to south stairwell. At 8:06 David moves to east wing. At 8:07 Kian moves to west wing. At 8:08 Hana moves to south stairwell. At 8:09 he (who?) moved the sturdy tablet into the storage room. Who is "he"? The previous subject was Hana (female). But "he" could refer to Hana? No. Actually at 8:08, Hana took the sturdy tablet and placed it in the south stairwell. At 8:09, he moved the sturdy tablet into the storage room. Who is "he"? The previous male was Kian at 8:07. So likely Kian moves from west wing to storage room at 8:09. So after 8:09, the tablet is in storage room.

After that, no more mentions of sturdy tablet. So actual location is storage room. But Hugo's belief: Did Hugo see any of these moves after his initial? He only saw his own action at 8:00. Did he later see any? Not indicated. So his belief remains workshop. However, there is a later action at 8:10 onward about worn folder, not tablet. So Hugo never updates belief. So answer: workshop.

Thus answer: workshop.

Realized dims 5

dim	value
context_length	37.0
coreference	13.0
distractors	20.0
entity_state	10.0
temporal	0.0

Latent params 5

param	value
chain_length	10.0
coref_pressure	5.0
distractor_events	20.0
filler_events	2.0
scramble	0.0