people · May 19, 2026
Zep AI Demonstrates 18.5% Higher Accuracy and 90% Lower Latency Than MemGPT on Agent Memory Benchmarks
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Zep AI published research showing its temporal knowledge graph architecture achieves up to 18.5% higher accuracy and 90% lower latency versus MemGPT on Deep Memory Retrieval and LongMemEval benchmarks. The system combines chat history with structured business data in a graph that tracks fact changes over time. Zep AI is a YC W24 company founded in 2023 by Daniel Chalef with 5 employees in San Francisco. The company reports 50% month-over-month ARR growth and 240+ customers including Fortune 500 firms as of May 2026.
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