Fine-tuning a ColBERT-style Model on a Single RTX 3090 Beats General Retrievers

lateinteraction · x · 2026-08-27

A new blog post details the training and fine-tuning of multi-vector embedding models using Sentence Transformers. As a practical example, the author fine-tuned a ColBERT-style model for medical retrieval. The process took 14.5 hours on a single RTX 3090, resulting in a model that outperforms every general-purpose retriever the author could find.

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