Letta free tier includes Stateful AI agents that keep their memory across sessions… Catalogue date September 2026.
Letta's free tier offers Stateful AI agents that keep their memory across sessions… It's stable — zero pricing changes recorded.
Stateful AI agents that keep their memory across sessions. The Free plan is $0/month for the Letta app, CLI and web app: up to 3 stateful agents, limited use of Letta Auto, a limited number of LLM requests on rotating free models, and your own model API keys or coding plans. Free is a Personal Plan; API-key access to the Letta API is sold as a Developer Plan, the API Plan at $20/month plus $0.10 per active agent a month and pay-as-you-go model usage. Pro is $20/month for up to 20 stateful agents. The Letta agent harness is open source (Apache 2.0) and runs on your own infrastructure with no Letta account.
No recorded pricing changes for Letta. This is a good sign — stable pricing.
We do not push notifications. Every change we record is readable the moment it lands, and the JSON answer carries an ETag — send it back as If-None-Match and an unchanged answer costs one 304.
curl https://agentdeals.dev/api/changes?vendor=Letta
curl https://agentdeals.dev/pricing-changes/feed.xml?vendor=Letta
Look up Letta programmatically with the AgentDeals MCP server:
{
"tool": "search_deals",
"arguments": {
"query": "Letta",
"limit": 5
}
}