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Agno vs Letta

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Agno compared with Letta
DetailAgnoLetta
What it doesThe agent platform that builds itself Machines that learn
StageEstablished Startup
FoundedNot given Not given
Based inNot given US
Pricing modelNot given Not given
PricingFree: $0/month with unlimited usage and retention. Pro: $150/month with one live AgentOS connection and three team seats. Enterprise: Custom pricing. Add-ons available: $30/month per additional seat, $95/month per additional live connection, $300/month for SAML SSO. Not given
Key features
  • Agent building with SDK
  • AgentOS runtime
  • Control Plane dashboard
  • Durable execution and distributed state
  • Role-based access control
  • Multi-model support
  • MCP server integration
  • Memory evolution
  • Continuous learning
  • Identity management
  • Capability evolution
  • Context management
What makes it different
  • Open source runtime free at any scale
  • Data stays in your own infrastructure
  • No per-event or metering fees
  • Works with any framework or model provider
  • Agents that remember everything and learn continuously
  • Memory, identity, and capabilities evolve with experience
  • Virtual context management technology
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)71 no change since last check73 no change since last check
Trust Flow (Majestic)2830
Citation Flow (Majestic)4549
Referring domains (Majestic)13602455

4 details filled in for both companies.

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