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Judge anthropic/claude-opus-4-7 · Signal Studio judge (claude-opus-4-7) · 2026-05-28
% indicator
exact match
Agreement vs gold
Indicator level — gold and the judge as two raters over the rubric criteria.
Exact match
83.3%
Weighted κ
0.84
MAE
0.23
Signed bias
+0.03
Attribution
Where the judge diverges, and whether it's signal: per-gateway bias localizes the gap, the confusion matrix shows over- vs under-rating, and the noise floor is the judge's self-agreement across passes (a gap below it isn't trustworthy).
Indicator confusion · rows = gold, cols = judge
| Meets | Partial | DNM | |
|---|---|---|---|
| Meets | 25 | 2 | 0 |
| Partial | 3 | 0 | 0 |
| DNM | 0 | 0 | 0 |
Diagonal = agreement. Amber = judge rated higher than gold (over-rating).
Gateway rollup
Indicator scores rolled up to EdReports gateway ratings (sequential gating + no-0s cap), gold vs judge.
G1 · Text Quality
28/28 pts
G2 · Building Knowledge
30/32 pts
G3 · Usability
24/25 pts
Gateway-level agreement: exact 100% · κ 1.00 (3 gateways)
Divergences (5)
Indicators where the judge's score differed from gold. Amber = judge under-scored, blue = over-scored.