Research-based 7-layer memory vs. fast chat memory with automatic fact extraction.
March 2026
15 algorithms (9 + 6 PMA), Sleep Consolidation, Retention Curves
Fast chat memory with fact extraction and session summaries
Zep is a strong chat memory system with fact extraction and session summaries — ideal for chatbot developers who need fast memory. ZenBrain goes significantly deeper: 7 memory layers, neuroscience algorithms like Sleep Consolidation and Hebbian Learning, and a MemoryCoordinator that orchestrates all layers. For projects that go beyond chat memory, ZenBrain is the better choice.
| Feature | ZenBrain | Zep |
|---|---|---|
| Memory Layers | 7 layers | 2 (Facts + Sessions) |
| Sleep Consolidation | ✓ | ✗ |
| Fact Extraction | Entity Resolution | ✓ |
| Session Summaries | Episodic Memory | ✓ |
| Spaced Repetition | ✓ | ✗ |
| Temporal Awareness | ✓ | ✓ |
| Self-Hosted | ✓ | partial |
| Zero Dependencies | ✓ | ✗ |