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Letta

Stateful AI agents with persistent memory, formerly MemGPT

AI AgentsFounded 2023#6 of 17 in AI Agents

Updated May 29, 2026

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Company profile

What is Letta?

Letta develops stateful AI agents equipped with persistent memory, allowing them to maintain context over extended interactions. Evolving from the open-source MemGPT project, the company provides a platform for building and deploying AI agents capable of long-term conversations and complex, multi-step tasks.

Company research

Data as of May 29, 2026

No company research is published for this company yet. All research →

Latest company data

Primary data point

Downloads

107.3K/30d

Tracked package: PyPI letta

▲ +27%Updated 1d ago

Other data points

Dependent projects

2

Projects depending on tracked package: PyPI letta

Updated 8h ago

GitHub stars

23.0K

Main repository stars

Updated 8h ago

Hacker News

3/30d

Position #12 in category discussion

Updated 8h ago

Repository health

Maintenance data from the main open-source repository.

Releases (30d)
0

About Letta

Letta develops stateful AI agents equipped with persistent memory, allowing them to maintain context over extended interactions. Evolving from the open-source MemGPT project, the company provides a platform for building and deploying AI agents capable of long-term conversations and complex, multi-step tasks.

FoundersCharles Packer, Kai Greshake, Rohan Rao, Michael J. Lee

Funding

$10M · 1 round

Raised $10M total. Category position #6 of 17 in AI Agents.

Seed2024

Felicis

$10M

Investors

Felicis

Tracked packages (1)

1 PyPI

letta

PyPIMain PyPI package

letta

Stateful AI agents with persistent memory, formerly MemGPT