AgentIndex icon
AgentIndex
cortex logo
cortex
★ 35
vs
perseus-vault logo
perseus-vault
★ 72

cortex vs perseus-vault

cortex: Cortex is a private, free, and local memory engine for personal AI agents, built with Rust. It provides multi-tier, self-evolving long-term memory that persists across sessions and devices, offering sub-millisecond performance and end-to-end encrypted cloud synchronization.; perseus-vault: Perseus Vault provides durable, encrypted, local-first memory for AI agents, operating as a single Rust binary with zero dependencies. It integrates seamlessly with popular AI agent frameworks like LangGraph, CrewAI, and AutoGen, offering advanced features like hybrid semantic search, bitemporal queries, and a robust memory lifecycle.

01

TL;DR

cortex logo
cortexMemory & Context · ★ 35

Providing persistent, private long-term memory for AI agents and LLMs across conversation sessions.

Read cortex full review →
perseus-vault logo
perseus-vaultMemory & Context · ★ 72

Provide durable, persistent memory for AI agents across sessions.

Read perseus-vault full review →
02

Side-by-Side Comparison

Field
cortex logocortex
perseus-vault logoperseus-vault
Category
Memory & Context
Memory & Context
Stars
★ 35
★ 72
License
MIT
MIT
Install Command
brew tap gambletan/tap && brew install cortex-mcp-server
curl -sSf https://raw.githubusercontent.com/Perseus-Computing-LLC/perseus-vault/main/scripts/install.sh | sh
Updated
5d ago
1mo ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
AI Agent Memory, Local Storage, Privacy-Preserving AI
AI Agent Memory, Local-first, Persistent Storage
03

Features

cortex logocortex
01Private by Default: Memories reside in a local SQLite file, ensuring zero telemetry and data privacy.
02Real, Multi-Tier Memory: Features 4 memory tiers (Working, Episodic, Semantic, Procedural), multi-signal retrieval, Bayesian beliefs, and a cross-channel people graph.
03Sub-millisecond Performance: Achieves 156µs ingest and 568µs search speeds, significantly faster than cloud memory APIs.
04Cross-Device End-to-End Encrypted Sync: Optionally syncs memories across devices through your own cloud storage (iCloud, Google Drive, etc.) with AES-256-GCM encryption.
05Drop-in Integration: Serves as an MCP server for Claude, offers Python bindings, and integrates with frameworks like LangGraph, DeerFlow, and OpenClaw.
perseus-vault logoperseus-vault
01Bundled semantic search with zero configuration and network dependencies.
02Biomimetic memory lifecycle with Ebbinghaus decay, layer promotion, and automatic archiving.
03AES-256-GCM transparent encryption for stored entity data.
04Recall-first context injection with relevance gating and per-model budget.
05Multiple transport options including stdio, SSE, and HTTP for MCP clients.
04

Use Cases

cortex logocortex
↳Providing persistent, private long-term memory for AI agents and LLMs across conversation sessions.
↳Enabling AI assistants to remember user preferences, facts, and past interactions without sending data to external servers.
↳Building personal AI systems where user data stays entirely on-device or synced via user's own encrypted cloud storage.
↳Integrating advanced memory capabilities (e.g., people graph, Bayesian beliefs, contradiction detection) into agent orchestration platforms like LangGraph or DeerFlow.
↳Developing AI applications that require low-latency, real-time memory access and context generation for prompt injection.
perseus-vault logoperseus-vault
↳Provide durable, persistent memory for AI agents across sessions.
↳Integrate as a memory backend for popular AI agent frameworks (e.g., LangGraph, CrewAI, AutoGen).
↳Export AI agent memories to Personal Knowledge Management (PKM) tools like Obsidian for human review and navigation.
↳Secure, air-gapped deployments requiring local-first operation and data privacy.
FAQ

FAQ

What is the difference between cortex and perseus-vault?
Both cortex and perseus-vault are in the Memory & Context category. cortex has 35 stars, while perseus-vault has 72 stars.
Which is better, cortex or perseus-vault?
The best choice depends on your use case. Choose cortex if Providing persistent, private long-term memory for AI agents and LLMs across conversation sessions., and perseus-vault if Provide durable, persistent memory for AI agents across sessions..
Is cortex free or open source?
Yes, cortex is open source on GitHub (MIT).
Is perseus-vault free or open source?
Yes, perseus-vault is open source on GitHub (MIT).
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