Letta
Data confidence: HighStateful AI agents with persistent memory, formerly MemGPT
Letta has a Developer Momentum Index of 15, ranking #113 of 262 companies. Key metrics include 106.0K monthly package downloads, 21.4K GitHub stars, $10M in total funding.
Developer Adoption
Developer Adoption
Package downloads and ecosystem metrics, 30-day window
Active Contributors Trend
github contributors remained stable at 13 over the last 90 days.
View data table
| Date | github contributors |
|---|---|
| Mar 5, 2026 | 13 |
| Mar 6, 2026 | 13 |
PyPI Download Trend
PyPI Downloads grew from 102,523 to 106,043 (+3.4%) over the last 90 days.
View data table
| Date | pypi downloads |
|---|---|
| Mar 5, 2026 | 102,523 |
| Mar 6, 2026 | 106,043 |
Key Signals
Developer Community Metrics
Metrics computed from HN discussion, GitHub activity, and funding data.
Category Benchmark
31 AI Agents companies30-Day Trends
PyPI Downloads
PyPI Downloads grew from 102,523 to 106,043 (+3.4%) over the last 90 days.
View data table
| Date | pypi downloads |
|---|---|
| Mar 5, 2026 | 102,523 |
| Mar 6, 2026 | 106,043 |
GitHub Stars
GitHub Stars grew from 21,332 to 21,437 over the last 90 days.
View data table
| Date | github stars |
|---|---|
| Feb 21, 2026 | 21,332 |
| Feb 22, 2026 | 21,347 |
| Feb 23, 2026 | 21,360 |
| Feb 24, 2026 | 21,369 |
| Feb 25, 2026 | 21,381 |
| Feb 26, 2026 | 21,408 |
| Feb 27, 2026 | 21,436 |
| Feb 28, 2026 | 21,437 |
HN Mentions
HN Mentions grew from 5 to 26 (+420.0%) over the last 90 days.
View data table
| Date | hn mentions |
|---|---|
| Jan 6, 2026 | 5 |
| Jan 29, 2026 | 24 |
| Jan 30, 2026 | 23 |
| Jan 31, 2026 | 23 |
| Feb 1, 2026 | 22 |
| Feb 2, 2026 | 23 |
| Feb 3, 2026 | 22 |
| Feb 4, 2026 | 23 |
| Feb 5, 2026 | 26 |
Funding Rounds
2024 · Felicis
Investors
According to AI-Buzz, Letta has 106,043 PyPI downloads in 30 days, with 13 active contributors in 30 days, ranks #8 in AI Agents for HN discussion share (out of 31 tracked with 1.4% of HN discussion), with 0% positive developer sentiment (22 HN comments analyzed).
Source: https://www.ai-buzz.com/companies/letta?utm_source=citation&utm_medium=referral&utm_campaign=cite_this_data
Metrics derived from public APIs (HN Algolia, GitHub, npm/PyPI). Sentiment classified by AI. See methodology for details →
About
About
Description
Stateful AI agents with persistent memory, formerly MemGPT
Estimated Company Size
11 - 50 employees
Website
letta.comDetails
Founded
2023
Data Confidence
ExcellentReflects profile completeness, metric freshness, and signal coverage.
How we calculate thisEmbed Badge
Weekly AI Intelligence
Which AI companies are developers actually adopting? We track npm and PyPI downloads for 262+ companies. Get the biggest shifts weekly - before they show up in the news.