ResearchBenchmarksLong-context Question Answering on LOCOMO locomo_timeFollow51.39F1 ScoreHippoRAG20.439628.474836.5144.5452Jan 14, 2026Evaluation ResultsMethodMethodLinksF1 ScoreLLM Judge ScoreHippoRAG2026.0151.3963.86CAST2026.0149.7768.22Mem02026.0148.9557.94Zep2026.0143.1551.4LangMem2026.0125.4225.42RAG2026.0121.6331.15