Question 1

Is Letta better than Langflow?

Accepted Answer

It depends on your use case. Letta is known for Build stateful AI agents with long-term memory, while Langflow Visual framework for building multi-agent AI apps. See our full comparison above for a detailed breakdown.

Question 2

Is Letta free?

Accepted Answer

Letta pricing: Free (open-source) + Cloud.

Question 3

Is Langflow free?

Accepted Answer

Langflow pricing: Free (open-source) + Cloud.

Question 4

What are the main differences between Letta and Langflow?

Accepted Answer

Letta and Langflow differ in features, pricing, and platform support. Letta: Build stateful AI agents with long-term memory. Langflow: Visual framework for building multi-agent AI apps. See the full side-by-side comparison above for details.

Feature	Letta	Langflow
Category	AI Agent Frameworks	Automation Platforms
Pricing	Free (open-source) + Cloud	Free (open-source) + Cloud
GitHub Stars	13k	✓ More stars 35k
Platforms	Linux, macOS, Docker	Linux, macOS, Windows, Docker, Web
Key Features	✓ Long-term memory ✓ Stateful agents ✓ Tool use ✓ Multi-model ✓ Self-editing memory	✓ Visual builder ✓ Drag-and-drop ✓ Component library ✓ API export ✓ Multi-model
Pros	+ Solves long-term memory problem + Self-editing memory + Stateful agents + Multi-model support + Active research backing	+ Intuitive visual builder + LangChain ecosystem integration + Easy prototyping + Export as Python code + Growing component library
Cons	− Complex memory management − Performance overhead − Rebranding confusion − Still experimental	− Tied to LangChain ecosystem − Limited for very custom logic − Can be slow for complex flows − Still maturing
Tags	memorystatefulagentsopen-source	no-codevisuallangchainopen-source

LettavsLangflow

Letta

Langflow

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