Comparison
letta vs Memori
Verdict
Pick letta if letta is a Python-based platform designed to foster the development of stateful AI agents with capabilities for advanced memory techniques that support continuous learning and self-improvement. The Apache-2.0 license it鳧; pick Memori if memori is an agent-native memory infrastructure layer that converts agent execution and conversation into a structured, persistent state for use in production systems. It.
Markdown twin · letta alternatives · Memori alternatives
GraphCanon updated 4d
Trust & integrity
| Signal | letta | Memori |
|---|---|---|
| Maintenance | Very active (0d since push) As of 5d · github_public_v1 | Very active (0d since push) As of 4d · github_public_v1 |
| Provenance | Not a fork · Organization account As of 5d · github_public_v1 | Not a fork · Organization account As of 4d · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- letta
- Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.
- Memori
- Agent-native memory infrastructure for LLM systems
Stars
- letta
- 24k
- Memori
- 16k
Forks
- letta
- 2.6k
- Memori
- 3.2k
Open issues
- letta
- 41
- Memori
- 33
Language
- letta
- -
- Memori
- Python
Adopt for
- letta
- letta is a Python-based platform designed to foster the development of stateful AI agents with capabilities for advanced memory techniques that support continuous learning and self-improvement. The Apache-2.0 license it鳧
- Memori
- Memori is an agent-native memory infrastructure layer that converts agent execution and conversation into a structured, persistent state for use in production systems. It supports various deployment environments such as云
Persona
- letta
- -
- Memori
- -
Runtime
- letta
- -
- Memori
- -
License
- letta
- letta operates under the Apache-2.0 license.
- Memori
- Other
Last pushed
- letta
- Aug 16, 2026
- Memori
- Aug 18, 2026
Categories
- letta
- AI Agents
- Memori
- AI Agents, Data & Retrieval
Trust and health
Open issues (now)
- letta
- 41
- Memori
- 33
Stars delta
- letta
- +443 (30d)
- Memori
- +515 (30d)
Open issues delta
- letta
- -8 (30d)
- Memori
- +7 (30d)
Full report
- letta
- Trust report
- Memori
- Trust report
Typed relationship
letta alternative MemoriBoth Letta and Memori provide memory infrastructure for AI agents, though they implement this functionality differently.
Shared compatibility
- Node.js · letta: Node.js runtime · Memori: Node.js runtime
Choose letta if…
- License: letta is Apache-2.0, Memori is Other.
- Both Letta and Memori provide memory infrastructure for AI agents, though they implement this functionality differently.
- Tags unique to letta: advanced memory, agents development framework, self-improving ai, stateful ai.
- When you require an AI agent with robust memory features that enable continuous learning and adaptation over time.
When NOT to use letta
- If you are looking for a simple stateless AI solution without advanced memory capabilities, as letta is geared towards more complex stateful agent development.
- When your project's requirements involve strict limitations around data retention and privacy where even anonymized interaction logs might be considered sensitive.
Choose Memori if…
- License: Memori is Other, letta is Apache-2.0.
- Both Letta and Memori provide memory infrastructure for AI agents, though they implement this functionality differently.
- Tags unique to Memori: agent-memory, enterprise, llm, memory-management.
- Also covers Data & Retrieval.
- Memori ships Docker support for self-hosted deployment.
- 您需要一个可以在多种部署环境中工作的内存基础设施，包括云端和本地环境时。
When NOT to use Memori
- （TypeScriptPython），MemoriSDK。
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (letta-ai/letta) · observed Aug 17, 2026
- GitHub forks (letta-ai/letta) · observed Aug 17, 2026
- Last push (letta-ai/letta) · observed Aug 16, 2026
- License file (Apache-2.0) · observed Aug 17, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (MemoriLabs/Memori) · observed Aug 18, 2026
- GitHub forks (MemoriLabs/Memori) · observed Aug 18, 2026
- Last push (MemoriLabs/Memori) · observed Aug 18, 2026
- License file (Other) · observed Aug 18, 2026
- Decision facts (enrichment) · observed Jul 11, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: letta 24k · Memori 16k (synced Aug 17, 2026).
Common questions
- What is the difference between letta and Memori?
- letta: Platform for stateful agents: AI with advanced memory that can learn and self-improve over time.. Memori: Agent-native memory infrastructure for LLM systems. See the comparison table for live GitHub stats and shared categories.
- When should I choose letta over Memori?
- Choose letta over Memori when License: letta is Apache-2.0, Memori is Other; Both Letta and Memori provide memory infrastructure for AI agents, though they implement this functionality differently; Tags unique to letta: advanced memory, agents development framework, self-improving ai, stateful ai; When you require an AI agent with robust memory features that enable continuous learning and adaptation over time.
- When should I choose Memori over letta?
- Choose Memori over letta when License: Memori is Other, letta is Apache-2.0; Both Letta and Memori provide memory infrastructure for AI agents, though they implement this functionality differently; Tags unique to Memori: agent-memory, enterprise, llm, memory-management; Also covers Data & Retrieval; Memori ships Docker support for self-hosted deployment; 您需要一个可以在多种部署环境中工作的内存基础设施，包括云端和本地环境时。.
- When should I avoid letta?
- If you are looking for a simple stateless AI solution without advanced memory capabilities, as letta is geared towards more complex stateful agent development. When your project's requirements involve strict limitations around data retention and privacy where even anonymized interaction logs might be considered sensitive.
- When should I avoid Memori?
- （TypeScriptPython），MemoriSDK。
- Is letta or Memori more popular on GitHub?
- letta has more GitHub stars (24,274 vs 16,130). Stars measure visibility, not whether either tool fits your constraints.
- Are letta and Memori open source?
- Yes - both are open-source projects on GitHub (letta: Apache-2.0, Memori: Other).
- Where can I find alternatives to letta or Memori?
- GraphCanon lists graph-backed alternatives at letta alternatives and Memori alternatives (letta markdown twin, Memori markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, letta or Memori?
- letta: Very active. Memori: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for letta and Memori?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: letta trust report; Memori trust report.