Letta
Framework for building stateful AI agents
San Francisco, CA, USA
Founded 2024
Letta provides an open source framework for building stateful agents with advanced reasoning capabilities and transparent long-term memory. The Letta framework is white box and model-agnostic.
Websites:
Last Updated: August 7, 2026
Current Valuation
No valuation data available
Funding Summary
$10M
Total reported funding
Announcement
August 12, 2026
Letta: Letta Agents SDK: An SDK for stateful agents | Letta
Announcement
July 24, 2026
Microsoft Newsroom: COSS Companies Sign Open Letter Urging US to Encourage Development of Open Weight Models
Media Mention
June 16, 2026
Atlan: AI Agent Memory Loss: Fix Session Amnesia and Context [2026]
OSS News & Views
June 8, 2026
DEV Community: Mem0 vs Minta vs Letta vs Zep: AI Memory Systems Compared (2026) - DEV Community
Media Mention
June 1, 2026
Kelvorn Magazine: Charles Packer Is Building the Brain Your AI Never Had - Kelvorn
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Key People
Core OSS Projects
Letta (formerly MemGPT) is the stateful agents framework with memory, reasoning, and context management.
License: Apache 2.0
Business Information
Category
AI AgentsIndustries
Data & Analytics
Technologies
LLMsAI MemoryOperating Systems
Sectors
Enterprise
Licenses
Apache-2.0
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