Fast GraphRAG
Focus: graphrag, retrieval and open source. Shares rag and knowledge graph with FastMemory. Adds Web. Rated 4.7 (FastMemory: 4.3).
FrameworkFreeCross-Platform, Web
4.7Visit
Framework
FastMemory
A topological memory layer that uses concepts instead of embeddings to improve RAG and AI memory.
Rating
4.3 / 5
Pricing
Free
Difficulty
Advanced
Works on
Cross-Platform
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is FastMemory?
FastMemory represents text as a topological structure built from concepts. It aims to improve RAG, AI memory and LLM queries without embeddings or vectors, and reports strong results on Hugging Face benchmarks.
Third-party open-source projects. We are not affiliated with their authors; repositories are provided as-is by their maintainers. Review each project's license, code and security before installing. See our Disclaimer.
Pros: what FastMemory does well
- Replaces embeddings and vectors for retrieval
- Written in Rust
- MIT licensed
Cons: where it falls short
- Benchmark claims are the project's own
- Young project with a small community
Who FastMemory is for
Developers experimenting with alternatives to vector-based RAG.
Who can skip it
People who just need a simple vector store.
FastMemory alternatives
Not sold on FastMemory? These do a similar job, and each card says what it has in common.
PixelRAG
Focus: retrieval, vision and multimodal. Shares rag with FastMemory. An AI tool, not a framework. Adds Web. Rated 4.5 (FastMemory: 4.3).
AI ToolFreeWeb, Cross-Platform
4.5Visit
Agentset
Focus: citations, deep research and mcp. Shares rag with FastMemory. An AI tool, not a framework. Freemium (FastMemory: Free). Same 4.3 rating.
AI ToolFree planCross-Platform
4.3Visit
ClearAI
Focus: ontology, epistemic loop and deepseek. Shares knowledge graph with FastMemory. An AI tool, not a framework. Same 4.3 rating.
AI ToolFreeCross-Platform
4.3Visit
Pieces
Focus: context, snippets and developers. Shares ai memory with FastMemory. An AI tool, not a framework. Freemium (FastMemory: Free). Adds macOS, Windows and Linux. Same 4.3 rating.
AI ToolFree planmacOS, Windows
4.3Visit
Awesome LLM Apps
Focus: ai agents, open source and python. Shares llm and rag with FastMemory. A website, not a framework. Adds Web. Rated 4.8 (FastMemory: 4.3).
WebsiteFreeWeb
4.8Visit
Free alternatives to FastMemory
Want to spend nothing? These free picks cover similar ground.
ModelScope Cookbook
Focus: fine-tuning, agents and cookbook. Shares llm and rag with FastMemory. A course, not a framework. Adds Web. Rated 4.5 (FastMemory: 4.3).
CourseFreeWeb
4.5Visit
MIRA OS
Focus: long-term memory, ai companion and self-hosted. Shares ai memory and llm with FastMemory. An AI tool, not a framework. Rated 4.4 (FastMemory: 4.3).
AI ToolFreeCross-Platform
4.4Visit
nanoGPT
Focus: gpt, training and karpathy. Shares llm with FastMemory. Adds macOS, Windows and Linux. Rated 4.8 (FastMemory: 4.3).
FrameworkFreemacOS, Windows
4.8Visit
GCF
Focus: data format, structured data and tokens. Shares llm with FastMemory. Adds Web. Rated 4.5 (FastMemory: 4.3).
FrameworkFreeWeb, Cross-Platform
4.5Visit
Kipi System
Focus: claude code, knowledge base and markdown. Shares ai memory with FastMemory. Adds macOS, Windows and Linux. Rated 4.5 (FastMemory: 4.3).
FrameworkFreemacOS, Windows
4.5Visit
llmwiki
Focus: knowledge base, llm wiki and markdown. Also in Knowledge Management and Research, like FastMemory. An AI tool, not a framework. Adds macOS, Windows and Linux. Rated 4.5 (FastMemory: 4.3).
AI ToolFreeCross-Platform, macOS
4.5Visit
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