lecore-bm25
Okapi BM25 + RRF with the stoplist/stemming tokenizer that makes it beat stock BM25 out of the box. Vendored from leCore (MIT, AnOversizedMooseWithSocks).
- Language
- Python
- Pushed
- Aug 2026
- Size
- 70
- License
- MIT
Who this is for
A retrieval person who wants Okapi BM25 + RRF with a stoplist/stemming tokenizer that actually beats stock BM25.
What worked
Vendored from leCore (MIT). supercontext sits next to it with NIAH / MTEB / cost-to-first-answer vs FAISS.
What failed
Easy to confuse with the whole leOS religion. This oat is a tokenizer and a bench, not an operating system.
Next three
- 1Publish the beat-stock-BM25 numbers in one table
- 2Keep leCore-the-fork separate from this SKU
- 3Founder who will maintain the stoplist
STACC will
Point at supercontext and the tokenizer contract.
Will not
Rebrand someone else's OS or run a hosted search API as the product.
Shipped by —, oat by STACCoverflow. No forced face. No forced token.
Same lane
openzoo-ingest
Everything your machine produces, bound into your own leCore memory. Local by default; the shared brain is the only egress.
stacc-brain
Stacc Brain — Karpathy llm-wiki at Telegram scale (Obsidian + holographic layer / leCore). Demo: https://brain.stacc.bio
lecore-flash
PrivateA founder who can live in HTML in the local memory and retrieval lane, taking a proved body rather than a blank repo.
supercontext
Reproducible benchmarks for leCore retrieval: NIAH past the context window, MTEB, and cost-to-first-answer vs FAISS