What is Letta?
Letta, from the creators of MemGPT, provides an open-source framework and hosted platform for building agents that keep persistent memory across sessions. Developers use it for assistants and copilots that need to remember users. There is a free tier; Pro and API plans each start at $20 per month.
Key facts
- Pricing
- Free / $20 mo
- Free plan
- Yes
- Category
- Coding
- Website
- https://www.letta.com/
- Listing updated
- Nov 11, 2026
Letta FAQ
What is Letta?
Letta, from the creators of MemGPT, provides an open-source framework and hosted platform for building agents that keep persistent memory across sessions. Developers use it for assistants and copilots that need to remember users. There is a free tier; Pro and API plans each start at $20 per month.
Is Letta free?
Yes. Letta lists a free plan. Pricing: Free / $20 mo.
What are alternatives to Letta?
Coding alternatives to Letta include GitHub Copilot, Together AI, Baseten, Straion, Cursor and Pinecone.