Letta alternatives

The main alternatives to Letta in Agent memory are Mem0. The table compares their verified basics. For task-based picks, see the rankings linked on each tool page.

Tool	What it is	Pricing model	Integrations	Self-hostable	Last verified
Letta	Platform for stateful agents with long-term memory (formerly MemGPT).	open-source	API	Yes	Oct 14, 2026
Mem0	Memory layer for AI agents.	open-source	API, MCP	Yes	Oct 14, 2026