langflow vs letta
A neutral, constraint-first comparison - live GitHub stats and typed relationships, not marketing.
| langflow | letta | |
|---|---|---|
| Tagline | Langflow is a powerful platform for building and deploying AI-powered agents and workflows. | Platform for stateful agents with advanced memory and self-improvement capabilities. |
| Stars | 151k | 24k |
| Forks | 9.5k | 2.5k |
| Open issues | 977 | 48 |
| Language | Python | Python |
| License | MIT | Apache-2.0 |
| Last pushed | Jul 7, 2026 | Jul 3, 2026 |
| Categories | AI Agents, Evaluation & Observability, Data & Retrieval | AI Agents |
langflow
A tool that offers a visual interface to create custom AI-powered services, integrating support for major language models (LLMs) and vector databases. It also provides multi-agent orchestration capabilities and observability.
Python
letta
Letta is a platform designed to build AI agents that can operate in a persistent, memory-rich environment, enabling them to learn from past interactions and improve over time. It supports both local execution via CLI tools and integration into applications using the SDK. Agents can run on Letta's server or self-hosted infrastructure.
Python