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LifeBench: Benchmark for Long-Horizon Memory

LifeBench: Benchmark for Long-Horizon Memory

LifeBench introduces a new benchmark for AI agents' long-term memory, integrating declarative and non-declarative types from diverse digital traces. It ensures data quality with real-world priors like social surveys and map APIs, and scales via cognitive-inspired event hierarchies. Top memory systems score only 55.2%, revealing challenges in long-horizon retrieval.