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Long-Term Conversational Memory Retrieval on LongMemEval

92.9R@5RRF
88.42889.58990.7591.911May 24, 2026

Evaluation results

MethodLinks
RRFLLM answerer=gpt-4o-mini, LLM judge=gpt-4o-mini, context_window=top-52026.0592.997.746.848.662.566.124.831
agent_rrfrecency_bonus=additive, LLM answerer=gpt-4o-mini, LLM judge=gpt-4o-mini, context_window=top-52026.0592.497.847.448.662.76625.431.2
BM25LLM answerer=gpt-4o-mini, LLM judge=gpt-4o-mini, context_window=top-52026.0590.994.646.648.46265.324.630.6
Densebackbone=BGE-small, LLM answerer=gpt-4o-mini, LLM judge=gpt-4o-mini, context_window=top-52026.0588.694.645.647.859.864.723.629.8