B'
Bench'd
langchain-memory 0.0 on LongMemEvalcognee 0.0 on LongMemEvalmem0-local 0.0 on LongMemEvalllamaindex-memory 0.0 on LongMemEvalllm-baseline 0.0 on LongMemEvalverifiedstate 0.0 on LongMemEvallangchain-memory 0.0 on LongMemEvalLetta 88.4 on LongMemEval3 systems independently scored36 systems indexedlangchain-memory 0.0 on LongMemEvalcognee 0.0 on LongMemEvalmem0-local 0.0 on LongMemEvalllamaindex-memory 0.0 on LongMemEvalllm-baseline 0.0 on LongMemEvalverifiedstate 0.0 on LongMemEvallangchain-memory 0.0 on LongMemEvalLetta 88.4 on LongMemEval3 systems independently scored36 systems indexed

LlamaIndex Memory

Community-Verified
LlamaIndexWebsiteGitHub(38.0k)DocsLast tested May 11, 2026

Memory module within the LlamaIndex framework providing chat memory, composable memory buffers, and vector-backed long-term storage. Tightly integrated with LlamaIndex's retrieval and indexing pipeline.

Recall
81.2Verified (Deterministic)
81.2Nuance (LLM Judge)
Fact retrieval accuracy
Temporal
42.9Verified (Deterministic)
42.9Nuance (LLM Judge)
Time-aware ordering
Reasoning
46.2Verified (Deterministic)
46.2Nuance (LLM Judge)
Multi-hop inference
Overall
56.8Verified (Deterministic)
56.8Nuance (LLM Judge)
Weighted composite

Per-Benchmark Breakdown

BenchmarkVerifiedNuance
LongMemEval74.167.5
LoCoMo72.866.3

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