Research note ยท October 17, 2026
One small embedding model couldn't tell a deploy script from a hosting note.
2 embedding models tested side by side
What we did
Mneva, our memory service for coding agents, recalls by meaning. The first version used MiniLM, with a keyword fallback.
What we found
Asked "how do we release", MiniLM couldn't separate a note about the deploy script from a note about hosting. bge-small with its retrieval prefix could. We switched and rebuilt every stored vector.
What it means
Test recall on the questions people actually ask. Known limit: very loose paraphrases still miss.
Source: mneva-engine commits ce00d9f and 384641f.
