Question 1

Is PrivateGPT better than Letta?

Accepted Answer

It depends on your use case. PrivateGPT is known for Interact with your documents privately using LLMs, while Letta Build stateful AI agents with long-term memory. See our full comparison above for a detailed breakdown.

Question 2

Is PrivateGPT free?

Accepted Answer

PrivateGPT pricing: Free (open-source).

Question 3

Is Letta free?

Accepted Answer

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

Question 4

What are the main differences between PrivateGPT and Letta?

Accepted Answer

PrivateGPT and Letta differ in features, pricing, and platform support. PrivateGPT: Interact with your documents privately using LLMs. Letta: Build stateful AI agents with long-term memory. See the full side-by-side comparison above for details.

Feature	PrivateGPT	Letta
Category	Local AI Infrastructure	AI Agent Frameworks
Pricing	Free (open-source)	Free (open-source) + Cloud
GitHub Stars	✓ More stars 55k	13k
Platforms	Linux, macOS, Windows	Linux, macOS, Docker
Key Features	✓ Document Q&A ✓ 100% private ✓ Local inference ✓ RAG ✓ Multi-format	✓ Long-term memory ✓ Stateful agents ✓ Tool use ✓ Multi-model ✓ Self-editing memory
Pros	+ 100% private and local + No data leaves your machine + Multiple document formats + Good accuracy with RAG + Easy Docker setup	+ Solves long-term memory problem + Self-editing memory + Stateful agents + Multi-model support + Active research backing
Cons	− Requires powerful hardware − Slower than cloud solutions − Limited model choices − UI is basic	− Complex memory management − Performance overhead − Rebranding confusion − Still experimental
Tags	privacyragdocumentsopen-source	memorystatefulagentsopen-source

PrivateGPTvsLetta

PrivateGPT

Letta

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