AI tool comparison
Mnemos vs Ollama
Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.
Developer Tools
Mnemos
Local vector memory for Claude Desktop with 3D conversation visualization
75%
Panel ship
—
Community
Free
Entry
Claude Desktop has no memory across sessions. You close the window and it forgets everything. Mnemos is an open-source MCP server that fixes this by watching your conversation files in real-time, indexing them with local ONNX embeddings (MiniLM-L6-v2), and enabling hybrid semantic + keyword search — all without a single byte leaving your machine. The v1.1 release adds a genuinely striking feature: a 3D semantic visualization that maps your conversations into a clustered constellation using UMAP dimensionality reduction and Three.js. You can scrub through a chronological timeline and watch the knowledge graph build in real time. It is, frankly, prettier than it needs to be. Built on .NET 9, SQLite FTS5, and React/Vite, Mnemos is one of the more technically ambitious "Claude memory" projects to appear on HN this week. The offline-first, MIT-licensed approach puts it in a different league from cloud-synced alternatives.
Developer Tools
Ollama
Run LLMs locally on your machine — no cloud needed
100%
Panel ship
—
Community
Free
Entry
Ollama lets you run Llama, Mistral, Gemma, and other open-source LLMs locally. One command to download and run. Features include a REST API, model library, and GPU acceleration on Mac and Linux.
Reviewer scorecard
“This solves a real, painful problem with zero cloud dependency. The hybrid FTS5 + vector search is the right architecture — you get speed and semantic richness without compromising privacy. The .NET 9 stack is slightly niche but the setup looks smooth.”
“The Docker of LLMs. Pull a model, run it, use the API. Privacy, no cloud costs, works offline. Essential tool for any developer experimenting with local AI.”
“It is a one-person Show HN project posted literally today with 2 GitHub stars. The 3D visualization is cool but has nothing to do with actually improving recall quality. Also: how often do you actually need to search old Claude conversations vs. just starting fresh?”
“Local models still lag behind cloud models in quality. But for development, testing, and privacy-sensitive use cases, Ollama is the obvious choice. Free is hard to beat.”
“Local-first AI memory is the correct long-term architecture. Every AI system we rely on should have this kind of persistent, private, searchable context layer. Mnemos is a prototype of what OS-level AI memory will eventually look like, and seeing it built today matters.”
“Local AI is the future for privacy and cost. As models get smaller and hardware gets better, Ollama becomes the default way to run AI. They are building the runtime layer.”
“The 3D constellation visualization genuinely excites me — there is art in watching your conversation history render as a navigable space. For writers and researchers who use Claude heavily, the ability to rediscover old threads through semantic search could unlock something meaningful.”
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