When Can We Trust LLMs in Mental Health? Large-Scale Benchmarks for Reliable LLM Evaluation. - Abeer Badawi; Elahe Rahimi; Md. Tahmid Rahman Laskar; Sheri Grach; Lindsay Bertrand; Lames Danok; Prathiba Dhanesh; Jimmy Huang 001; Frank Rudzicz; Elham Dolatabadi (EACL (Volume 1: Long Papers), 2026)