CorPipe at CRAC 2026: Empty Nodes and Cross-Lingual Transfer in Multilingual Coreference Resolution

CorPipe 26, an improved version of CorPipe 25, won the CRAC 2026 Shared Task on multilingual coreference resolution.

The shared task expanded to more datasets and languages; the system jointly predicts empty nodes, mentions, and coreference links.

CorPipe 26 outperformed other submissions in both the LLM and unconstrained tracks.

Ablations show benefits from model size, empty-node handling, and zero-shot cross-lingual transfer.