GitHub - zvec-ai/zvec-grep: Local-first search across your workspace, built for humans and AI agents.
Local-first search across your workspace, built for humans and AI agents. - zvec-ai/zvec-grep
Rust Library
Summary
Frankensearch is a two-tier hybrid search library for Rust that combines lexical and semantic search techniques. It utilizes a fast first-pass mechanism for sub-millisecond results followed by a quality-refinement stage to ensure high-accuracy rankings.
Highlights
- Two-tier hybrid architecture combining lexical (Tantivy BM25) and semantic (vector cosine) search
- High-performance execution providing sub-millisecond initial results and 150ms quality refinement
- Uses Reciprocal Rank Fusion to merge different search methodologies
- Includes a standalone CLI (fsfs) for easy installation, model management, and system diagnostics
- Supports advanced features like f16 SIMD vector indexing and feature-gated compilation
auto-generated
Context
Audience
Rust Developers and Search Engineers
DomainInformation Retrieval
Formatopen source software
Accessopen source
Source Overview
frankensearch is a Rust library and fsfs CLI implementing two-tier hybrid search that combines BM25 lexical matching with vector cosine semantic retrieval via Reciprocal Rank Fusion.
The fast tier returns initial results in sub-milliseconds using potion-128M; the refinement tier re-ranks in approximately 150ms using all-MiniLM-L6-v2. It provides a progressive iterator API, f16 SIMD quantized vector indexing, feature-gated compilation, and streaming output in JSON, JSONL, TOON, and CSV formats.
Topics
Related
RustVector SearchSemantic SearchTantivyReciprocal Rank FusionMachine Learning
