Key-Frame Reasoning with SAM3: Third Place Solution for the MeViS-Text Track of the 8th LSVOS Challenge
A two-stage, training-free solution using Gemini-3.1 Pro and SAM3 ranked third in the MeViS-Text track of the 8th LSVOS Challenge, achieving J&F, J, F, N-acc., T-acc., and Final scores of 0.761, 0.736…