Third-Party Software and AI Model Licenses

KotoRoku uses the software and AI models listed below. The copyright notices and license terms of each rights holder are shown here.

AI models (local AI)

Models used for local AI are downloaded from Hugging Face when you choose to do so. They are not bundled with KotoRoku.

Qwen3 4B Instruct 2507 (mlx-community/Qwen3-4B-Instruct-2507-4bit)

• Developer: Alibaba Cloud (Qwen team)
• License: Apache License 2.0
• Base model: Qwen/Qwen3-4B-Instruct-2507
• Quantization: mlx-community

Qwen3 1.7B (mlx-community/Qwen3-1.7B-4bit)

• Developer: Alibaba Cloud (Qwen team)
• License: Apache License 2.0
• Base model: Qwen/Qwen3-1.7B
• Quantization: mlx-community

Gemma 3 4B IT (mlx-community/gemma-3-4b-it-qat-4bit)

• Developer: Google LLC
• License: Gemma Terms of Use (https://ai.google.dev/gemma/terms)
• Prohibited uses: Gemma Prohibited Use Policy (https://ai.google.dev/gemma/prohibited_use_policy)
• Base model: google/gemma-3-4b-it-qat-q4_0-unquantized
• Quantization: mlx-community

Gemma is provided under and subject to the Gemma Terms of Use found at ai.google.dev/gemma/terms.

Models you specify

A model from a Hugging Face repository that you specify as "Custom" is subject to the license set by that model's rights holder. You are responsible for checking the license of any model you specify.

Software libraries

Packages published by Apple Inc. and swiftlang are licensed under the Apache License 2.0 with the Runtime Library Exception.

swift-crypto contains code derived from BoringSSL, which is subject to the BoringSSL licenses (OpenSSL License, ISC License, and others). See the NOTICE.txt file in that package for details.

MIT License

Applies to the following libraries: mlx-swift (Copyright (c) 2023 ml-explore), mlx-swift-lm (Copyright (c) 2024 ml-explore), EventSource (Copyright 2025 Mattt), ZIPFoundation (Copyright (c) 2017-2026 Thomas Zoechling), yyjson (Copyright (c) 2020 YaoYuan).

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.

Apache License 2.0

Applies to the following libraries and models: FluidAudio, swift-huggingface, swift-transformers, swift-jinja, the packages from Apple Inc. and swiftlang, and the Qwen3 models.

Full license text: https://www.apache.org/licenses/LICENSE-2.0

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.

Under Section 4(d) of the Apache License 2.0, the attribution notices contained in each package's NOTICE file are those included with the respective distributions listed above.

Apple frameworks

KotoRoku uses Apple frameworks including Speech, AVFoundation, and Foundation Models. These are subject to Apple's software license agreements.