Letta
letta.com
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Overview
Letta is a company founded in 2023 by University of California, Berkeley researchers behind the MemGPT project on long-term memory for language models. Its open-source framework and cloud service give agents persistent memory that survives beyond a context window, with tooling to inspect and edit what an agent remembers. The project is widely used by developers building assistants that must retain state over months.
News
The Letta Agent SDK
You can program Letta agents with the Agent SDK now. It's pretty good, you should try it.
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Report
Letta Agents SDK: An SDK for stateful agents
The Letta Agents SDK is designed for stateful, persistent agents that keep their identity, memory, and experience across models, machines, and interfaces.
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Report
Trajectory: A Standard Format for Agent Experience Data
Introducing trajectory, an open-source package that normalizes coding-agent sessions from Claude Code, Codex, Letta Code, and other harnesses into one token-efficient format designed for agents learning from past experience.
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Report
Letta: Europe must unite or risk becoming a 'colony' of US and China
The nascent "EU inc" strategy will attempt to complete the single market before the bloc becomes unable to compete with global superpowers.
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Technologies
Tech DNA
Python
SQL
TypeScript
Letta
Ray
PyTorch
PostgreSQL
LLM
AI/ML
Python
SQL
Letta
OpenAI
Ray
Spark
AI Agents
LLM
Ollama
vLLM
Fine-tuning
PyTorch
Reinforcement Learning
Synthetic Data
Post-training
SFT
Anthropic
PostgreSQL
Other
TypeScript
Tailwind CSS
Stack modernity
83/100
How modern this stack is, based on technology relevance, AI adoption and the share of legacy tools.
In-demand technologies
Letta
3 jobs
Required
OpenAI
3 jobs
Required
Python
2 jobs
Required
Spark
2 jobs
Required
Ray
2 jobs
Required
AI Agents
2 jobs
Required
TypeScript
1 job
Required
SQL
1 job
Required
Salary medians are calculated from this company's open jobs and compared with the market.
Industry adoption
Python
20%
TypeScript
13%
SQL
13%
AI Agents
13%
LLM
13%
PostgreSQL
11%
Share of companies in the same industry that use each technology.
Stack changes
Anthropic
Aug 2026
AI Agents
Aug 2026
SFT
Aug 2026
Post-training
Aug 2026
OpenAI
Aug 2026
Synthetic Data
Aug 2026
Reinforcement Learning
Aug 2026
PyTorch
Aug 2026
Technologies recently added to or removed from this company's stack - a signal of tech migrations and new initiatives.
Jobgether
Thomson Reuters
Adobe
Weekday
CrowdStrike
Databricks
Growth
Hiring Momentum
38/100
Slowing
Open positions
3
0 opened / 0 closed in 30 days
ATS activity
Every ~2 days
08/30/2026
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
AI/ML
67% ▼
Backend
33% ▼
Activity Timeline
Added vLLM to stack
Aug 2026
Added TypeScript to stack
Aug 2026
Added Tailwind CSS to stack
Aug 2026
Added SQL to stack
Aug 2026
Added Spark to stack
Aug 2026
Added Ray to stack
Aug 2026
Added Python to stack
Aug 2026
Added PostgreSQL to stack
Aug 2026
Added Ollama to stack
Aug 2026
Added LLM to stack
Aug 2026
Added Letta to stack
Aug 2026
Jobs
≈ $149k – $327k per year (Estimated) • In office • Full-Time • San Francisco
Letta
OpenAI
AI Agents
Apply
≈ $160k – $349k per year (Estimated) • In office • Full-Time • San Francisco
Python
Fine-tuning
Letta
PyTorch
Ray
Reinforcement Learning
Spark
Synthetic Data
OpenAI
Post-training
SFT
AI Agents
Apply
≈ $147k – $301k per year (Estimated) • In office • Full-Time • San Francisco
Python
SQL
TypeScript
PostgreSQL
AI/ML
Letta
LLM
Ollama
Ray
Spark
vLLM
Anthropic
OpenAI
Frontend
Tailwind CSS
Apply