Letta vs Mem0
Learn how Letta and Mem0 differ in their key features, development activity, technology
stack and community adoption, so you can decide which of these ai memory & context is best for you.
Learn how Letta and Mem0 differ in their key features, development activity, technology stack and community adoption, so you can decide which of these ai memory & context is best for you.
Letta
Last 30 days
Last commit
14 days agoRepository age
3 yearsVersion
0.16.8License
Apache-2.0Self-hosted
YesRepository
letta-ai/letta
Mem0
Last 30 days
Last commit
2 days agoRepository age
3 yearsVersion
v3.1.8License
Apache-2.0Self-hosted
YesRepository
mem0ai/mem0
Detailed Comparison
Mem0 appears to have several advantages over Letta, particularly in popularity and growth. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.
Mem0 appears to have several advantages over Letta, particularly in popularity and growth. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.
Community & Popularity
Mem0 leads in popularity with 64,727 stars vs 24,623 stars for Letta. The 163% higher star count indicates stronger community adoption. In terms of developer contributions, Mem0 has 7,580 forks, indicating strong developer engagement.
Growth Momentum
Mem0 is growing faster, adding 2,039 stars in the last 30 days (+3.3%) against adding 503 stars for Letta (+2.1%). Mem0 is both larger and pulling further ahead.
Development Activity
Both projects show recent activity, with Letta last updated 14 days ago and Mem0 2 days ago.
Technology Stack
Both tools share common technology foundations, being built with JavaScript, CSS, Bash, Typescript, Python. However, they differ in their additional technology choices: Mem0 leverages JSX, Next.js, SCSS.
Project Maturity
Both projects started around the same time, with Letta beginning 3 years ago and Mem0 3 years ago.
Licensing
Both projects use the Apache-2.0 license, providing identical terms for usage and distribution.
Use Cases & Features
Both tools serve similar use cases in AI Memory & Context. However, they also have distinct specializations: Letta also focuses on AI Agent Platforms.
Hosting & Deployment
Both Letta and Mem0 offer self-hosting capabilities, giving you full control over your data and infrastructure.
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