Cosine Similarity Calculator
Measure similarity between vectors or compare text semantically.
This demo uses a simplified bag-of-words model for illustration. Real semantic similarity requires embedding models like OpenAI's text-embedding-3 or Sentence Transformers.
Cosine Similarity
-1 (Opposite)
0 (Orthogonal)
1 (Identical)
Cosine Similarity Formula
cos(θ) = (A · B) / (|A| × |B|)
- 1: Vectors point in the same direction (most similar)
- 0: Vectors are perpendicular (unrelated)
- -1: Vectors point in opposite directions (most dissimilar)