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Letta (formerly MemGPT)
Agent Memory & Persistence↑ Rising Signal
Open-source agent framework with OS-style self-managed memory.
64MoatRank™
About
From the Berkeley MemGPT research, Letta gives agents three-tier (core/archival/recall) memory managed via tool calls, plus git-based Context Repositories for auditability.
MoatRank™ Breakdown
Total Score64 / 100
Structural Integrity15/20
Behavioral Coherence14/20
Governance Maturity11/20
Adoption Legitimacy12/20
Composability Index12/20
Observation Timeline
Feb 1, 2026
Git-based Context Repositories; Letta Code + Channels
Maintains context across 500+ interactions vs. ~50 for baseline RAG (vendor benchmark); MCP-compatible.
Certification
↑ Rising Signal
Issued: Jun 25, 2026
Architecturally distinctive; smaller team and thinner public traction than Mem0.