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
Comparison
- See Letta alternatives and comparison — See the two platforms side by side when you are ready to evaluate them.