Source: https://seerepo.com/compare/langchain-ai/langgraph/vs/mem0ai/mem0
Markdown source: https://seerepo.com/compare/langchain-ai/langgraph/vs/mem0ai/mem0.md
Description: langgraph and mem0 share 5 technologies: psycopg, Postgres, SQLite, LangChain, and Pydantic. Both are written in Python.

# langgraph vs mem0

langgraph and mem0 share 5 technologies: psycopg, Postgres, SQLite, LangChain, and Pydantic. Both are written in Python.

- [langchain-ai/langgraph](https://seerepo.com/r/langchain-ai/langgraph): Build resilient agents.
- [mem0ai/mem0](https://seerepo.com/r/mem0ai/mem0): The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.

## What they share and what sets them apart

- In common: psycopg, Postgres, SQLite, LangChain, Pydantic
- Only in langgraph: aiosqlite, psycopg-pool, sqlite-vec, LangGraph, langgraph-sdk, langchain-protocol
- Only in mem0: FastAPI, Qdrant, OpenAI, PostHog, Anthropic, uvicorn, Redis, Supabase, @azure/search-documents, @pinecone-database/pinecone, @zilliz/milvus2-sdk-node, cassandra-driver, chromadb, Elastic, MongoDB, MySQL, oracledb, weaviate-client, AWS S3, Mistral AI, Rich, alembic, SQLAlchemy, bcrypt, cryptography, passlib, python-jose, mem0ai, strands-agents, jsonschema, boxen, ora, @opencode-ai/plugin, earendil-works, typebox, ai, ai-sdk, Zod, @azure/identity, @aws-sdk/client-bedrock-runtime, ollama, @turbopuffer/turbopuffer, cohere-ai, groq-sdk, Hugging Face, Cloudflare

## Side by side

| | langgraph | mem0 |
|---|---|---|
| Size | 206,994 lines written, 205 code files | 236,036 lines written, 624 code files |
| Who writes it | 0.8% of its commits signed by AI. With Claude Code, Cursor, GitHub Copilot, and Jules | 3.6% of its commits signed by AI. With Claude Code and Cursor |
| Activity | Last push November 6, 2026, 6,078 commits, 44,533 stars | Last push November 4, 2026, 2,653 commits, 68,421 stars |
| Tests | 247 test files. 50.7% of its code files have a test that imports them | 324 test files. 47.1% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, langgraph or mem0?

mem0, with 236,036 lines written; langgraph has 206,994.

The proof: [mem0ai/mem0's code at commit ed1f10f](https://github.com/mem0ai/mem0/tree/ed1f10fc87080f0b67f99be370817504888462ab)

### Which has more GitHub stars, langgraph or mem0?

mem0, with 68,421 stars; langgraph has 44,533.

The proof: [mem0ai/mem0 on GitHub](https://github.com/mem0ai/mem0)

### Which has more tests, langgraph or mem0?

mem0, with 324 test files; langgraph has 247.

The proof: [mem0ai/mem0's code at commit ed1f10f](https://github.com/mem0ai/mem0/tree/ed1f10fc87080f0b67f99be370817504888462ab)

### Which was updated more recently, langgraph or mem0?

langgraph: its last push was on November 6, 2026, and mem0's on November 4, 2026.

The proof: [langchain-ai/langgraph's commits on GitHub](https://github.com/langchain-ai/langgraph/commits)

### Which has more commits signed by AI, langgraph or mem0?

mem0: an AI signed 3.6% of its commits, with Claude Code and Cursor; in langgraph, 0.8%.

The proof: [the commits each tool signed in mem0ai/mem0](https://seerepo.com/r/mem0ai/mem0/ai)

## Sources

- langchain-ai/langgraph: Read on November 6, 2026, at commit 5847733 (https://github.com/langchain-ai/langgraph/tree/5847733bcb186c26b32da5cc822eaf8a89deffeb)
- mem0ai/mem0: Read on November 5, 2026, at commit ed1f10f (https://github.com/mem0ai/mem0/tree/ed1f10fc87080f0b67f99be370817504888462ab)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.