Question 1

Is SWE-Agent better than Letta?

Accepted Answer

It depends on your use case. SWE-Agent is known for AI agent that autonomously fixes GitHub issues, while Letta Build stateful AI agents with long-term memory. See our full comparison above for a detailed breakdown.

Question 2

Is SWE-Agent free?

Accepted Answer

SWE-Agent 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 SWE-Agent and Letta?

Accepted Answer

SWE-Agent and Letta differ in features, pricing, and platform support. SWE-Agent: AI agent that autonomously fixes GitHub issues. Letta: Build stateful AI agents with long-term memory. See the full side-by-side comparison above for details.

Feature	SWE-Agent	Letta
Category	AI Agent Frameworks	AI Agent Frameworks
Pricing	Free (open-source)	Free (open-source) + Cloud
GitHub Stars	✓ More stars 15k	13k
Platforms	Linux, macOS	Linux, macOS, Docker
Key Features	✓ Issue fixing ✓ GitHub integration ✓ Autonomous debugging ✓ Code search ✓ Multi-model	✓ Long-term memory ✓ Stateful agents ✓ Tool use ✓ Multi-model ✓ Self-editing memory
Pros	+ Strong benchmark performance + GitHub-native workflow + Open-source and research-backed + Multi-model support + Active development	+ Solves long-term memory problem + Self-editing memory + Stateful agents + Multi-model support + Active research backing
Cons	− Research-oriented (not polished) − Requires significant compute − Can be slow per issue − Limited to GitHub workflow	− Complex memory management − Performance overhead − Rebranding confusion − Still experimental
Tags	open-sourcecodinggithubautonomous	memorystatefulagentsopen-source

SWE-AgentvsLetta

SWE-Agent

Letta

Related Comparisons