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This release is a pre-release and may not be stable for production use.

QaNN

QaNN (Quantized Nearest Neighbors) is a C++20 vector search library (Flat, IVF, product quantization, exact re-ranking) with Python bindings.

Alpha: under active development. The API may change between releases, and indexes cannot be saved or loaded yet.

pip install qann

Wheels are published for Linux (x86_64, aarch64) and macOS (Apple Silicon, Intel) on Python 3.9 to 3.13. x86_64 builds require AVX2 and FMA. To build from source instead, run pip install . in a checkout; this needs CMake 3.20+, a C++20 compiler and, on Linux, OpenBLAS (optional but much faster training).

import numpy as np, qann

x = np.random.rand(10_000, 128).astype(np.float32)
ivf = qann.IVFIndex(128, nlist=100, nprobe=10)
ivf.enable_pq(16)
ivf.train(x, seed=1)
refine = qann.RefineIndex(ivf, k_factor=10)
refine.add(x)
ids, dists = refine.batch_query(x[:5], 10)   # (5, 10) arrays

See ARCHITECTURE.md for design, benchmarks and build details.

Metadata

Release files for qann 0.1.0a1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for qann 0.1.0a1
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qann-0.1.0a1.tar.gz 46.6 kB Details

Built distributions (wheels)

Table of built distributions (wheels) for qann 0.1.0a1
File
qann-0.1.0a1-cp313-cp313-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl CPython 3.13 CPython 3.13 Linux glibc 2.28+ x86-64, Linux glibc 2.27+ x86-64 Details
qann-0.1.0a1-cp313-cp313-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl CPython 3.13 CPython 3.13 Linux glibc 2.28+ ARM64, Linux glibc 2.27+ ARM64 Details
qann-0.1.0a1-cp313-cp313-macosx_11_0_x86_64.whl CPython 3.13 CPython 3.13 macOS 11.0+ x86-64 Details
qann-0.1.0a1-cp313-cp313-macosx_11_0_arm64.whl CPython 3.13 CPython 3.13 macOS 11.0+ ARM64 Details
qann-0.1.0a1-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl CPython 3.12 CPython 3.12 Linux glibc 2.28+ x86-64, Linux glibc 2.27+ x86-64 Details
qann-0.1.0a1-cp312-cp312-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl CPython 3.12 CPython 3.12 Linux glibc 2.27+ ARM64, Linux glibc 2.28+ ARM64 Details
qann-0.1.0a1-cp312-cp312-macosx_11_0_x86_64.whl CPython 3.12 CPython 3.12 macOS 11.0+ x86-64 Details
qann-0.1.0a1-cp312-cp312-macosx_11_0_arm64.whl CPython 3.12 CPython 3.12 macOS 11.0+ ARM64 Details
qann-0.1.0a1-cp311-cp311-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl CPython 3.11 CPython 3.11 Linux glibc 2.27+ x86-64, Linux glibc 2.28+ x86-64 Details
qann-0.1.0a1-cp311-cp311-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl CPython 3.11 CPython 3.11 Linux glibc 2.27+ ARM64, Linux glibc 2.28+ ARM64 Details
qann-0.1.0a1-cp311-cp311-macosx_11_0_x86_64.whl CPython 3.11 CPython 3.11 macOS 11.0+ x86-64 Details
qann-0.1.0a1-cp311-cp311-macosx_11_0_arm64.whl CPython 3.11 CPython 3.11 macOS 11.0+ ARM64 Details
qann-0.1.0a1-cp310-cp310-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl CPython 3.10 CPython 3.10 Linux glibc 2.28+ x86-64, Linux glibc 2.27+ x86-64 Details
qann-0.1.0a1-cp310-cp310-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl CPython 3.10 CPython 3.10 Linux glibc 2.28+ ARM64, Linux glibc 2.27+ ARM64 Details
qann-0.1.0a1-cp310-cp310-macosx_11_0_x86_64.whl CPython 3.10 CPython 3.10 macOS 11.0+ x86-64 Details
qann-0.1.0a1-cp310-cp310-macosx_11_0_arm64.whl CPython 3.10 CPython 3.10 macOS 11.0+ ARM64 Details
qann-0.1.0a1-cp39-cp39-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl CPython 3.9 CPython 3.9 Linux glibc 2.28+ x86-64, Linux glibc 2.27+ x86-64 Details
qann-0.1.0a1-cp39-cp39-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl CPython 3.9 CPython 3.9 Linux glibc 2.28+ ARM64, Linux glibc 2.27+ ARM64 Details
qann-0.1.0a1-cp39-cp39-macosx_11_0_x86_64.whl CPython 3.9 CPython 3.9 macOS 11.0+ x86-64 Details
qann-0.1.0a1-cp39-cp39-macosx_11_0_arm64.whl CPython 3.9 CPython 3.9 macOS 11.0+ ARM64 Details

Total release size: 86.9 MB

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