Terraphim AI is a privacy-first search assistant built in Rust. It runs on your machine, indexes your repositories, and never sends a byte to the cloud. No surveillance. No compromise.
Terraphim operates entirely on your hardware. Knowledge graphs are built from your documents using Aho-Corasick automata -- the same algorithms that power high-performance text matching in tools like ripgrep. Your semantic index stays local. Your search queries never leave your device.
Built by Applied Knowledge Systems Ltd, Terraphim is open-source Rust, auditable to the last byte. Every search, every graph traversal, every relevance score is computed locally.
Privacy is not a feature. It is the architecture. TERRAPHIM DESIGN PRINCIPLES
TitleScorer, BM25, BM25F, BM25Plus, and TerraphimGraph run concurrently. The best answer surfaces.
Every index, graph, and query stays on your machine. No telemetry, no cloud dependency.
Build thesauri from documents. Sub-millisecond concept extraction with LeftmostLongest matching.
Run untrusted code in fully sandboxed VMs with sub-2-second boot.
Search, persistence, agent orchestration, knowledge graphs, and haystack integrations -- each crate does one thing well.