Research#llm🏛️ OfficialAnalyzed: Dec 26, 2025 17:38

Reasoning about why the magnitude of vectors generated by text-embedding-003-large is approximately 1

Published:Dec 26, 2025 08:22
1 min read
Zenn OpenAI

Analysis

This article explores why the vectors generated by OpenAI's text-embedding-003-large model tend to have a magnitude of approximately 1. The author questions why this occurs, given that these vectors are considered to represent positions in a semantic space. The article suggests that a fixed length of 1 might imply that meanings are constrained to a sphere within this space. The author emphasizes that the content is a personal understanding and may not be entirely accurate. The core question revolves around the potential implications of normalizing the vector length and whether it introduces biases or limitations in representing semantic information.

Key Takeaways

Reference

As a premise, vectors generated by text-embedding-003-large should be regarded as 'position vectors in a coordinate space representing meaning'.