Files
LEANN/build_mlx_index.py
2025-07-13 02:13:04 -07:00

35 lines
1.2 KiB
Python

from leann.api import LeannBuilder
import os
# Define the path for our new MLX-based index
INDEX_PATH = "./mlx_diskann_index/leann"
if os.path.exists(INDEX_PATH + ".meta.json"):
print(f"Index already exists at {INDEX_PATH}. Skipping build.")
else:
print("Initializing LeannBuilder with MLX support...")
# 1. Configure LeannBuilder to use MLX
builder = LeannBuilder(
backend_name="diskann",
embedding_model="mlx-community/Qwen3-Embedding-0.6B-4bit-DWQ",
use_mlx=True
)
# 2. Add documents
print("Adding documents...")
docs = [
"MLX is an array framework for machine learning on Apple silicon.",
"It was designed by Apple's machine learning research team.",
"The mlx-community organization provides pre-trained models in MLX format.",
"It supports operations on multi-dimensional arrays.",
"Leann can now use MLX for its embedding models."
]
for doc in docs:
builder.add_text(doc)
# 3. Build the index
print(f"Building the MLX-based index at: {INDEX_PATH}")
builder.build_index(INDEX_PATH)
print("\nSuccessfully built the index with MLX embeddings!")
print(f"Check the metadata file: {INDEX_PATH}.meta.json")