TurboQuant-MLX
Copyright 2026 Manjunath Janardhan

This product includes software developed by Manjunath Janardhan.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

----------------------------------------------------------------------

This software implements the TurboQuant algorithm described in:

  Zandieh, A., Daliri, M., Hadian, M., Mirrokni, V. (2025).
  "TurboQuant: Online Vector Quantization with Near-optimal
  Distortion Rate."
  https://arxiv.org/abs/2504.19874

The original TurboQuant algorithm is research published by the authors
above. The MLX implementation, hybrid bit-allocation strategy, KV cache
compression integration, and fused Metal kernels in this repository are
the original work of Manjunath Janardhan.

----------------------------------------------------------------------

Versions 0.1.x through 0.2.0 of this software were released under the
MIT License. Starting with version 0.3.0, this software is released
under the Apache License, Version 2.0. Versions previously distributed
under MIT remain available under their original license; the relicense
applies only to versions 0.3.0 and later. See CHANGELOG.md for details.

----------------------------------------------------------------------

Third-party code

kernels/gated_delta_states.py is adapted from mlx-vlm 0.7.0
(https://github.com/Blaizzy/mlx-vlm), mlx_vlm/models/qwen3_5/gated_delta.py:

  MIT License

  Copyright © 2025 Prince Canuma

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
