chopratejas/kompress-v2-base
Adapter vs answerdotai/ModernBERT-base. chopratejas/kompress-v2-base is a LoRA adapter, not full weights: rank 16, on Wi, Wo, Wqkv in 22 layers (88 adapted matrices). It modifies answerdotai/ModernBERT-base at load time.
2 other repos hold byte-for-byte identical weight files.