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HUST-AI-HYZ/MemoryAgentBench

⭐ 451 Python repository created 2025-06-28

MemoryAgentBench is the code and data release for an ICLR 2026 paper on evaluating how well LLM agents remember information across long, incremental conversations. Instead of asking a model a single long-context question, the benchmark splits source material into chunks that are fed to an agent turn by turn, simulating the way information arrives in a real multi-turn session, and then queries the agent about what it retained. Four competencies are measured: accurate retrieval, meaning recovering a specific fact from earlier turns; test-time learning, meaning acquiring and applying new information during the session; long-range understanding, meaning reasoning over material spread across the whole history; and conflict resolution, meaning handling later information that contradicts what was stored before. The dataset combines reformulated material from earlier benchmarks with two new sets built by the authors, EventQA and FactConsolidation, and is published on Hugging Face. An inject-once, query-many design attaches multiple questions to each long input so that a single expensive ingestion supports many evaluations, which cuts the cost of a full run. The harness evaluates several classes of memory system under the same protocol, including plain long-context agents, retrieval-augmented agents and dedicated agentic memory frameworks such as HippoRAG, Cognee and Letta, configured through agent and dataset configuration files and launched from shell scripts. Scoring for summarisation and open-ended tasks uses an LLM judge, with API keys for OpenAI, Anthropic and Google supplied through an environment file. A follow-up project, MemoryArena, extends the same line of work to agentic tasks. The audience is researchers and engineers comparing memory architectures for conversational agents, and authors of memory libraries who want a standard, reproducible measurement rather than ad hoc demonstrations.

https://github.com/HUST-AI-HYZ/MemoryAgentBench

agentllmmemorymemory-agentbenchmarkevaluationlong-contextragmulti-turndatasetresearch

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