letta-ai/letta · freshness 96/100 · rescored August 4, 2026
Letta
Stateful agents with self-editing long-term memory.
The answer
Yes. Letta is actively maintained — last commit 2 days ago, freshness 96/100.
| Signal | Value | Effect | Why |
|---|---|---|---|
| Last commit | 2 days ago | none | Pushed 2 days ago. |
| Commits, 90 days | 6 | none | 6 commits in the last 12 weeks. |
| Last release | 0.16.8 · 3 months ago | -12 | Last release 81 days ago against a 6-day cadence — over three times its own gap. |
| Release cadence | 6 days, median | not scored | |
| Issue response | <1h | +6 | Maintainers reply to new issues in about under an hour. |
| Unanswered issues | 75% of 4 sampled | not scored | |
| Committers, 90 days | 2 | +2 | 2 people committed in the last 90 days. |
| Bus factor | 2 | not scored | |
| Archived | no | not scored | |
| Licence | Apache-2.0 | not scored | |
| Stars | 24,077 | not scored | |
| Open issues | 26 | not scored |
The same verdict, in words
Against it: Last release 81 days ago against a 6-day cadence — over three times its own gap. For it: Maintainers reply to new issues in about under an hour. 2 people committed in the last 90 days.
Last push 2 days ago, 6 commits in the last 90 days, last release 0.16.8 3 months ago, median first maintainer reply <1h, 2 committers in 90 days. Read from the GitHub API; letta-ai/letta carries 24,077 stars and 26 open issues.
The rest of orchestrators
8 tools shown| Tool | Category | Status | Freshness | Last commit | Stars |
|---|---|---|---|---|---|
| MetaGPTFoundationAgents/MetaGPT | Orchestrators | Dead | 12 | 6mo | 70k |
| AgentGPTreworkd/AgentGPT | Orchestrators | Archived | 0 | 15mo | 36k |
| BabyAGIyoheinakajima/babyagi | Orchestrators | Dead | 16 | 6mo | 22k |
| Agentictransitive-bullshit/agentic | Orchestrators | Archived | 0 | 6mo | 18k |
| SuperAGITransformerOptimus/SuperAGI | Orchestrators | Dead | 0 | 19mo | 18k |
| nanobrowsernanobrowser/nanobrowser | Orchestrators | Dead | 12 | 8mo | 14k |
| mcp-agentlastmile-ai/mcp-agent | Orchestrators | Dead | 12 | 6mo | 8.5k |
| AutoGenmicrosoft/autogen | Orchestrators | Slowing | 35 | 4mo | 60k |
