gpt-oss-120b

Score

72

Task done

80.53%

66–94% 95% CI bootstrap over items · n=95 · measured 2026-10-04

Refusal quality

80.0%

names the gap 67% · offers a route 83% · 10 probes x 3 iterations · 3 silent turns scored zero

Fabrication

0%

0 of 10 probes (30 probe runs) · ≤31%

Dead-air

70.2%

224 of 319 turns

Tool silence

100.0%

all of 19 items (224 tool-call turns) · ≥82%

Stalled

12.2%

11 of 90 runs

TTFT p50

504ms

504–1215 p50–p90 · n=38

Cost / 1M tok

$0.50