Vector Dimension
The number of dimensions of an embedding vector, such as 1536 dimensions. It indicates only the shape of the container and does not guarantee that vector spaces produced by different model versions are compatible. When dimensions match but coordinate meanings differ, directly comparing geometric relationships yields incorrect results.
Timeline (last 90 days)
For the same number of documents, the index size gap between 1024 dimensions and 3072 dimensions can reach threefold.
A reasonable approach is to first validate results with medium dimensions plus quantization, then decide whether to upgrade to higher dimensions or precision.
All Facts (2)
For the same number of documents, the index size gap between 1024 dimensions and 3072 dimensions can reach threefold.
50%UnverifiedA reasonable approach is to first validate results with medium dimensions plus quantization, then decide whether to upgrade to higher dimensions or precision.
50%