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Embedding Versions and Drift

Two versions of an embedding model produce unrelated coordinate systems, so a document's old and new vector are no more similar to each other than to a random document. Mixing them in one index cannot raise an error, which is why a half-finished migration returns confident nonsense at full speed.

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RELATED CONCEPTS

Embeddings & Vector Representations Vector Databases Retrieval-Augmented Generation (RAG)Model Versioning and Migration Chunking Strategies

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