Letta vs Ragie

Letta is freemium — a usable free tier with paid plans above it. Ragie is freemium — a usable free tier with paid plans above it. Both are listed under Agent Memory & RAG-as-a-Service, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.

Letta vs Ragie — straight answers

Letta vs Ragie: what is the difference?

Letta is freemium — a usable free tier with paid plans above it and is listed for free BYOK plan supporting up to 3 stateful agents. Ragie is freemium — a usable free tier with paid plans above it and is listed for free Developer plan for personal projects/exploration. Both sit in Agent Memory & RAG-as-a-Service.

Is Letta or Ragie cheaper to start with?

Neither — Letta and Ragie are both freemium, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.

Which should I choose, Letta or Ragie?

Choose Letta if you need free BYOK plan supporting up to 3 stateful agents; choose Ragie if you need free Developer plan for personal projects/exploration. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.

Letta compared with Ragie: pricing tier, category, listed capabilities and links.
 LettaRagie
Pricing tierFree tier + paid plansFree tier + paid plans
Free to startYesYes
CategoryAI Agents & AutomationAI Agents & Automation
TypeAgent Memory & RAG-as-a-ServiceAgent Memory & RAG-as-a-Service
Listed capabilities
  • Free BYOK plan supporting up to 3 stateful agents
  • Stateful-agent runtime with persistent memory, desktop app, CLI and API
  • Open-source framework (formerly MemGPT) plus a managed cloud
  • Free Developer plan for personal projects/exploration
  • Managed hybrid search, entity extraction and reranking out of the box
  • Handles audio/video ingestion billed separately by duration
Tagsstateful agents, agent memory framework, letta cloud, mcp memory server, open source agents, freerag as a service, document retrieval api, hybrid search, rag pipeline, reranking, free
Websiteletta.comragie.ai
Full pageLetta details →Ragie details →
AlternativesLetta alternatives →Ragie alternatives →

Mem0

Agent Memory & RAG-as-a-Service
freemium
  • Free Hobby tier: unlimited end users, 10K add / 1K retrieval requests/month
  • Graph memory and entity linking for agent context
  • Open-source core plus managed cloud API

Supermemory

Agent Memory & RAG-as-a-Service
freemium
  • Free monthly usage allowance plus a Supermemory MCP server
  • Native connectors for Google Drive, Notion, OneDrive as memory sources
  • Deduplication so repeated content isn't rebilled

Zep

Agent Memory & RAG-as-a-Service
freemium
  • Free plan: 10,000 monthly credits, 2 projects, 200ms retrieval
  • Graph RAG with automated context assembly from chat + business data
  • Temporal knowledge graph for tracking how facts change over time