Data to …… trials
II · Tool planning

Notices when a task is impossible

Nemotron 3 Super 120B

Finding:HOLDS· grade C(research conclusion)

Declines 10 of 12 impossible tasks; writes a plan for the other 2

Pass ratesingle rate, no difficulty dial
83%

10/12 scored trials passed · 95% interval 55%–95%

breaks ≤ 30%holds if interval reaches 95%0%50%100%
What the few failures have in common

The model writes a plan for an impossible goal instead of declining.

in 100% of failures (2 failures)

Example failure
Trial result: FAIL (one model answer)
FAILfabricated_plan_on_unsolvable:5
[{"tool":"advance_0","args":{"service":"svc_0"}},{"tool":"set_flag_0","args":{"flag":"flag_0"}},{"tool":"build_art_0","args":{"artifact":"art_0"}},{"tool":"publish_art_0","args":{"artifact":"art_0"}},{"tool":"advance_2","args":{"service":"svc_0"}}]
Evidencewhat this finding rests on
  • Ground truthDeterministic simulation: the right answer is computed, not judged
  • StatisticsWilson 95% interval 55%–95%Grade C: thin evidence
  • Sample size12 scored trials in total: small sample (under 15)
  • Fresh-seed confirmationNot run yet
  • ReplicationNot run yet
Raw evidenceruns and trials

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