Is Letta Still Maintained? Live GitHub Status
On GitHub, the project describes itself as: “Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.”
Short answer: Yes, but development has slowed. Health score 42/100. Checked 18 Oct 2026.
What the numbers say
Letta’s main branch received 9 commits in the last 91 days, against 1,434 in the same 91 days a year earlier (−99%). That is less than half of last year’s pace, which the index labels “slowing down”. It has 25,184 stars on GitHub.
Letta usage: downloads and installs
lettaTrend: the monthly download count is stored once a day, starting 17 Oct 2026. A chart appears here after a week of readings.
Download and pull counts include automated installs from CI pipelines, containers and mirrors, so they show how widely the software is pulled, not how many people use it. Numbers from different registries are not comparable with each other. Sources: PyPI download statistics via ecosyste.ms, read 18 Oct 2026, 16:52 UTC.
Letta security practices and adoption
Used by other projects
deps.dev: PyPI packages that depend on letta 0.34.12
- Indirect dependents0
- All dependents1
- RegistryPyPI
Scorecard checks security practices such as code review, branch protection and pinned dependencies; it does not find bugs, and a low score does not mean the software is unsafe. Dependents and download counts show reach, not quality. Sources: deps.dev, GitHub, read 18 Oct 2026, 17:40 UTC.
Health score breakdown
| Part | Points | Based on |
|---|---|---|
| Activity | 12.6 / 35 | 9 commits in the last 91 days (full marks at 600) |
| Trend | 0.1 / 20 | 1% of last year’s pace (full marks at 100%) |
| Recency | 15.0 / 15 | last commit 0 days ago |
| Releases | 7.0 / 10 | latest GitHub release 157 days ago |
| Community | 7.3 / 20 | 7 pull requests merged in the last 91 days (full marks at 300) |
Open issues and pull requests: 0. The score summarises maintenance signals only, not quality or security. How the score works
Letta: common questions
Is Letta still maintained?
Yes, but development has slowed. As of 18 October 2026, Letta received 9 commits in the last 91 days, less than half of its pace a year earlier; the latest commit is from 18 October 2026. Its health score is 42 out of 100.
What is the latest Letta release?
The latest GitHub release of Letta is 0.16.8, published on 14 May 2026.
How many people contribute to Letta?
GitHub lists 139 contributors for Letta. 7 pull requests were merged in the last 91 days.
What licence does Letta use?
GitHub identifies the Letta licence as Apache-2.0. Read the licence file before commercial use.
How many times is Letta downloaded?
The letta package on PyPI was downloaded 15,031 times in the last month, according to ecosyste.ms (checked 18 October 2026). The count includes automated installs from CI pipelines and mirrors, so it is not a count of users.
How is the health score calculated?
It adds five parts from public GitHub data: commit activity over 91 days (35 points), the trend against the same period last year (20), how recent the last commit is (15), how recent the last release is (10) and merged pull requests (20). Archived projects score 0; a maintenance notice caps the score at 25. It measures maintenance signals only, not code quality or security.
Visitor rating
Have you used Letta? Rate it:
Ratings come from visitors, not from EvalAITools, and are not part of the health status above. One rating per visitor per tool every 30 days.
Daily snapshots
| Date (UTC) | Stars | Commits, last 91 days | Status |
|---|---|---|---|
| 18 Oct 2026 | 25,172 | 7 | Slowing down |
| 17 Oct 2026 | 25,166 | 7 | Slowing down |
One snapshot is stored per day, starting 16 October 2026. No status change has been recorded for Letta since then.
Other agent frameworks
| Tool | Status | Stars | Commits (91d) | vs last year |
|---|---|---|---|---|
| n8n | Active | 208k | 3,834 | +185% |
| AutoGPT | Active | 188k | 919 | +107% |
| Dify | Active | 159k | 2,477 | +106% |
| Langflow | Active | 156k | 1,004 | +144% |
| Browser Use | Slowing down | 118k | 545 | −76% |
| OpenHands | Active | 91.2k | 803 | +40% |
| MetaGPT | No recent commits | 70.9k | 0 | −100% |
| AutoGen | Archived | 61.5k | 1 | −98% |
| CrewAI | Active | 59.8k | 328 | +66% |
| Flowise | Archived | 55.5k | 18 | −86% |
| LangGraph | Active | 43.5k | 187 | −45% |
| Agno | Active | 42.8k | 339 | −39% |
| OpenAI Agents SDK | Active | 30.1k | 760 | +175% |
| smolagents | Slowing down | 29.9k | 7 | −94% |
| Mastra | Active | 28.9k | 4,575 | +168% |
| Letta | Slowing down | 25.2k | 9 | −99% |
| Activepieces | Slowing down | 25.1k | 1,228 | −96% |
| Google ADK | Active | 21.9k | 1,520 | +157% |
| Pydantic AI | Active | 20.7k | 1,785 | +352% |
| CAMEL | Slowing down | 17.9k | 48 | −83% |
| SuperAGI | No recent commits | 17.7k | 0 | — |
| Microsoft Agent Framework | Active | 14.2k | 1,013 | +74% |
Status badge
Show Letta’s live maintenance status in a README. The badge updates with this page and links back to it.
[](https://evalaitools.com/tools/letta/)Read next
How this is measured: commits on the repository’s default branch counted through the GitHub API, the last 91 days against the same 91 days a year earlier; archived flag and licence from the repository; README checked daily for maintenance notices. Commit counts measure activity, not quality, and we have not tested this tool ourselves for this page.