ResearchBenchmarksLong-context Question Answering on epbench ep_newsFollow51.23F1 ScoreCAST17.523626.274335.02543.7757Jan 14, 2026Evaluation ResultsMethodMethodLinksF1 ScoreLLM-as-a-Judge ScoreCAST2026.0151.2391.48HippoRAG2026.0147.1992.22LangMem2026.0133.862.67Zep2026.0126.9544.89RAG2026.0119.1854.89Mem02026.0118.8236.44