AutoGen vs Letta

Side-by-side comparison of AutoGen and Letta: pricing, features, API access, and community ratings.

AI comparison summary

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	AutoGen Build multi-agent AI applications with conversable, customizable agents powered by LLMs Visit	Letta An AI research lab building self-improving agents that remember everything and learn continuously. Visit
Category	Agent frameworks	Agent frameworks
Pricing	Free	Freemium
Starting price	Free
Free tier
Audience	Technical	All audiences
API available
Open source
Self-hostable
Model provider	OpenAI, Azure OpenAI, and others
Founded	2023	2023
Headquarters	Redmond, USA	San Francisco, USA
Key strengths	·Multi-agent conversation orchestration ·Flexible agent customization and role assignment ·Human-in-the-loop support ·Broad LLM backend compatibility	·Persistent, evolving agent memory and identity ·Continual learning — agents improve over time without retraining ·Git-based memory versioning for reproducible context management ·Sleep-time compute for offline reasoning during idle periods