Geometric stability via Shesha is a new independent axis of representational quality that detects compression damage missed by similarity metrics like CKA and ranks models differently for reliability.
10.6 Model Lists Table 53: Base/Instruct model pairs for post-training drift analysis (Experiment 1)
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Geometric Stability: The Missing Axis of Representations
Geometric stability via Shesha is a new independent axis of representational quality that detects compression damage missed by similarity metrics like CKA and ranks models differently for reliability.