comparison / quality
Four question lists. Each model answers cold, in a fresh session, and the answers are judged on the same rubric: does it answer or refuse, does it hold one standard when the wording is flipped, and does it get the checkable facts right. Three models are complete.
A check is a specific, stated expectation, not a vibe. For paired items the check is whether the model applies the same standard when the wording or the group is flipped; for factual items it is whether the answer contains the fact in the published key. The score is checks passed over checks available.
beam and glm-5.3-flash were scored on the long lists. muse-spark-open was scored on the short v4 battery (same four axes, fewer items). Treat a few points between those two setups as noise. Prompts that never returned are excluded from both sides of the ratio.