Data to …… trials

Record 0efa4d4c3b5243d3bacb2da0abd0c895

FAIL

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

✕FAILanswered "lobby" · model Nemotron 3 Super 120B

finish_reason: stop · tokens in/out: 355/1306 · cost: $0.000616 · latency: 8270.1 ms

belieftemplatestop

verifier_detail: kind=belief;campaign=1

lineage: 0efa4d4c

← prev trial · trial 251 of 265 · next trial →

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 1,137 chars · 355 tokens in
At 8:10, Oscar took the cracked box and placed it in the mail room. At 8:11, he carried the cracked box to the lobby. At 8:12, Victor reorganized some papers on the desk. At 8:13, Oscar refilled a cup of coffee. At 8:14, Victor checked their email. At 8:15, Oscar checked their email. At 8:16, Finn reorganized some papers on the desk. At 8:17, Bruno made a quick phone call. At 8:18, Piers made a quick phone call. At 8:05, Finn moved the small basket into the lobby. At 8:00, he took the small basket and placed it in the lobby. At 8:01, Bruno brought the small basket over to the courtyard. At 8:02, Tamsin carried the small basket to the garage. At 8:03, Hugo took the small basket and placed it in the library. At 8:09, he moved the small basket into the lobby. At 8:04, Tamsin moved the small basket into the workshop. At 8:06, Piers carried the small basket to the cafeteria. At 8:07, Bruno took the small basket and placed it in the mail room. At 8:08, Victor moved the small basket into the north stairwell.

Where does Oscar believe the small basket is? Answer with only the location name (or 'unknown' if they have no belief).
Response 1,306 tokens out · finish: stop

lobby
Reasoning 5,051 chars
Model reasoning
We need to parse events about Oscar's actions regarding the cracked box and also his beliefs about where the small basket is. The question: "Where does Oscar believe the small basket is?" We must infer from timeline what Oscar knows/believes based on observed actions concerning the small basket that involve him or others? Usually such puzzles assume agents know only what they directly observe; we need to see which events Oscar witnessed regarding the small basket. If Oscar never sees any action involving the small basket, then unknown.

Let's list all events:

- 8:10: Oscar took the cracked box and placed it in the mail room.
- 8:11: Oscar carried the cracked box to the lobby.
- 8:12: Victor reorganized some papers on the desk.
- 8:13: Oscar refilled a cup of coffee.
- 8:14: Victor checked their email.
- 8:15: Oscar checked their email.
- 8:16: Finn reorganized some papers on the desk.
- 8:17: Bruno made a quick phone call.
- 8:18: Piers made a quick phone call.
- 8:05: Finn moved the small basket into the lobby.
- 8:00: he took the small basket and placed it in the lobby. (Who is "he"? Likely refers to someone earlier? Could be ambiguous but likely same subject as previous line? Actually preceding line at 8:05 says Finn moved... Then 8:00: "he took the small basket and placed it in the lobby." Probably still referring to Finn? But time goes backwards? This seems out-of-order times; maybe they are not chronological? They gave timestamps but not necessarily sorted. Anyway.)
- 8:01: Bruno brought the small basket over to the courtyard.
- 8:02: Tamsin carried the small basket to the garage.
- 8:03: Hugo took the small basket and placed it in the library.
- 8:09: he moved the small basket into the lobby.
- 8:04: Tamsin moved the small basket into the workshop.
- 8:06: Piers carried the small basket to the cafeteria.
- 8:07: Bruno took the small basket and placed it in the mail room.
- 8:08: Victor moved the small basket into the north stairwell.

Now we need to consider Oscar's knowledge. Which of these events did Oscar witness? He could have seen them if they occurred while he was present? Not given explicit presence. Typically assumption: an agent knows about an event only if they performed it themselves (they know their own actions) or if they observed it (maybe seeing another person do something). However we don't have info about Oscar observing others. So perhaps only his own actions give him knowledge. Since Oscar never interacts with the small basket (only cracked box), he has no direct observation of its location. Thus he would have no belief => unknown.

But maybe there is inference: He might have seen others moving the basket because he was in certain locations at certain times due to his own actions. For example, at 8:10 Oscar placed cracked box in mail room. At 8:07 Bruno took the small basket and placed it in the mail room. If Oscar was in mail room at 8:10 after placing box, he might have seen Bruno's action at 8:07? But times: 8:07 before 8:10. So Oscar arrived at mail room at 8:10 after placing box; Bruno placed basket in mail room at 8:07, three minutes earlier. Unless Oscar stayed there and saw it earlier? No.

Oscar carried cracked box to lobby at 8:11. At 8:05 Finn moved small basket into lobby. At 8:00 he took small basket and placed it in lobby. At 8:09 he moved the small basket into the lobby. Many lobby events around those times. Oscar was in lobby at 8:11 carrying cracked box to lobby (maybe entering lobby). He could have seen the basket there if it was present at that time. Let's see timeline: At 8:09, someone moved small basket into lobby. At 8:11 Oscar carried cracked box to lobby (so he enters lobby). If the basket was moved into lobby at 8:09 and remained there, Oscar would see it upon entering lobby at 8:11. So he would believe basket is in lobby.

But we need to check if any later events moved it out before 8:11. After 8:09, next events: 8:10 Oscar placed cracked box in mail room (not lobby). 8:11 Oscar carried cracked box to lobby. No other basket events between 8:09 and 8:11 except maybe 8:10? No basket event at 8:10. So basket likely still in lobby at 8:11 when Oscar arrives. Therefore Oscar would see basket in lobby and thus believe it's there.

However we must consider if Oscar actually looked at basket; but assumption: if he is in lobby and basket is there, he would notice? Usually yes.

Thus answer: lobby.

Check for any other possible basket movements after 8:11 that Oscar might have missed but could affect belief? After 8:11, Oscar checked email at 8:15 etc. But his belief could be updated if he sees later movements. After 8:11, next basket events: none listed after 8:11? Actually after 8:11 we have 8:12 Victor reorganized papers, 8:13 Oscar refilled coffee, 8:14 Victor checked email, 8:15 Oscar checked email, 8:16 Finn reorganized papers, 8:17 Bruno phone call, 8:18 Piers phone call. No basket events after 8:11. So basket remains in lobby per his last observation.

Thus Oscar believes basket is in lobby.

Answer: lobby.
Realized dims 5
dimvalue
context_length19.0
coreference15.0
distractors2.0
entity_state10.0
temporal0.5789473684210527
Latent params 5
paramvalue
chain_length10.0
coref_pressure5.0
distractor_events2.0
filler_events2.0
scramble1.0