LettavsAmazon Q Developer

Full side-by-side comparison — features, pricing, platforms, and which one wins in 2026.

Letta

AI Agent Frameworks

Build stateful AI agents with long-term memory

Full review →Website ↗

Amazon Q Developer

Coding Assistants

AI assistant for software development from AWS

Full review →Website ↗
FeatureLettaAmazon Q Developer
CategoryAI Agent FrameworksCoding Assistants
PricingFree (open-source) + CloudFree + Pro $19/mo
GitHub Stars
✓ More stars
13k
—
PlatformsLinux, macOS, DockermacOS, Linux, Windows, Web
Key Features
  • ✓ Long-term memory
  • ✓ Stateful agents
  • ✓ Tool use
  • ✓ Multi-model
  • ✓ Self-editing memory
  • ✓ Code generation
  • ✓ Transformation
  • ✓ Security scanning
  • ✓ AWS integration
  • ✓ Chat
Pros
  • + Solves long-term memory problem
  • + Self-editing memory
  • + Stateful agents
  • + Multi-model support
  • + Active research backing
  • + Deep AWS integration
  • + Security vulnerability scanning
  • + Code transformation features
  • + Free tier available
  • + Enterprise support
Cons
  • − Complex memory management
  • − Performance overhead
  • − Rebranding confusion
  • − Still experimental
  • − AWS-focused (less useful outside AWS)
  • − Requires AWS account
  • − Smaller community
  • − Less general-purpose than Copilot
Tags
memorystatefulagentsopen-source
awscodingenterprisecloud

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