Letta Review
Letta is an AI platform for stateful agent platform with memory and continual learning. Review its features, pricing, and use cases before choosing a fit.
About Letta
Letta is a platform for building stateful agents. Its documentation describes agents that learn from experience, an open source agent harness, a local or managed agent server, and SDKs for embedding agents into applications. It is especially relevant for buyers who need memory and continual learning as an application building block.
Platform details
- Pricing: Open source agent tooling with managed options. Confirm current managed pricing and model usage terms with Letta before purchase.
- Founded: Not published on the reviewed product pages.
- Funding: Not published in the reviewed official documentation.
- Last reviewed: 2026-08-31
Official website
What is Sistava?
Sistava is an AI workforce platform where you hire AI employees and work with them through conversation. Tell an employee what you need in plain language, and Sistava handles the setup behind the scenes, including the tools, context, and team coordination needed for the work. You do not need to learn AI configuration or build workflows first. You can start with the work you want done, stay involved in the decisions that matter, and see how your team is moving forward.
Learn more about Sistava
Comparison
- See Letta alternatives and comparison — See the two platforms side by side when you are ready to evaluate them.