Letta
agent-frameworks
Stateful AI agents with long-term memory (formerly MemGPT).
Pricing
Free plan
Rating
—
Votes
0
Head-to-head comparison
Letta vs AutoGen
Compare Letta and AutoGen side by side across pricing, features, ratings, pros, cons, best-fit use cases, and alternatives.
AutoGen
agent-frameworks
Microsoft's multi-agent conversation framework (now in maintenance mode).
Pricing
Free
Rating
—
Votes
0
Feature comparison
Feature
Letta
AutoGen
Category
agent-frameworks
agent-frameworks
Pricing
Free plan
Free
Free plan
API access
Mobile app
Browser extension
Team collaboration
Custom training
Self-hosted option
Offline mode
Multi-language support
Letta pros and cons
Purpose-built for the agent memory problem
Strong research pedigree (MemGPT paper)
OS-style tiered memory persists across sessions
Open-source core, free to self-host
Narrower than general agent frameworks
Often used alongside other tooling, not a full stack
Renamed from MemGPT, some older docs use old name
AutoGen pros and cons
Pioneered accessible multi-agent conversation patterns
Free and open source
Backed by Microsoft Research with strong documentation
0.4 architecture is asynchronous and more observable
In maintenance mode as of 2026, no new feature focus
Microsoft steers new projects to the Agent Framework
Multiple version lines (0.2 vs 0.4/0.7) cause confusion
Which one should you choose?
Best overall signal
AutoGen
Selected using Toolglade popularity signals such as views and votes.
Best value signal
Letta
Selected using free-plan availability and engagement signals.
Best for
Letta
- developers
- Teams that need persistent agent memory
- Builders of long-running assistants
- Researchers exploring stateful agents
AutoGen
- multi-agent conversations
- research prototyping
- code-generation agents
- agent collaboration patterns
- Teams already running AutoGen in production
FAQ
Is Letta better than AutoGen?
It depends on your use case. Compare category fit, pricing, feature availability, and ratings before choosing.
Which tool has a free plan?
Letta and AutoGen offer a free plan based on current Toolglade data.