diff --git a/INDEX_MODEL_LICENSE b/INDEX_MODEL_LICENSE
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-bilibili Index-TTS 模型许可协议
-版本 1.0，2025 年 3 月 17 日
-版权所有 (c) 2025 bilibili Index
-第一部分：前言
-大型生成模型正在被广泛采用和使用，但也存在对其潜在滥用的担忧，无论是由于其技术限制还是伦理考虑。本许可证旨在促进所附模型的开放和负责任的下游使用。
-因此，现在您和 bilibili Index 同意如下：
-1. 定义
-“许可证”是指本文件中定义的使用、复制和分发的条款和条件。
-“数据”是指从与模型一起使用的数据集提取的信息和/或内容的集合，包括用于训练、预训练或以其他方式评估模型的数据。数据不受本许可证的许可。
-“输出”是指操作模型的结果，以由此产生的信息内容体现。
-“模型”是指任何伴随的机器学习基础组件（包括检查点），由学习的权重、参数（包括优化器状态）组成。
-“模型的衍生品”是指对bilibili Index在该许可证下开放的模型的所有修改、基于模型的作品或任何其他通过将模型的权重、参数、激活或输出的模式转移到另一个模型而创建或初始化的模型，以便使另一个模型的性能类似于本模型，包括但不限于涉及使用中间数据表示的蒸馏方法或基于模型生成合成数据用于训练另一个模型的方法。
-“补充材料”是指用于定义、运行、加载、基准测试或评估模型的伴随源代码和脚本，如果有，还包括用于准备数据进行训练或评估的任何伴随文档、教程、示例等。
-“分发”是指将模型或模型的衍生物传输、复制、发布或以其他方式共享给第三方，包括通过电子或其他远程方式提供模型作为托管服务 - 例如基于 API 或 Web 访问。
-“bilibili Index”（或“我们”）是指上海宽娱数码科技有限公司或其任何关联公司。
-“您”（或“您的”）是指行使本许可证授予的权限并/或出于任何目的和在任何使用领域使用模型的个人或法律实体，包括在最终使用应用程序（例如聊天机器人、翻译器等）中使用模型。
-“第三方”是指与 bilibili Index 或您没有共同控制的个人或法律实体。
-“商业用途”是指使用 bilibili Index-TTS 模型，直接或间接为实体或个人进行运营、推广或产生收入，或用于任何其他盈利目的。
-
-第二部分：许可及许可限制
-根据本许可协议的条款和条件，许可方特此授予您一个非排他性、全球性、不可转让、不可再许可、可撤销、免版税的版权许可。您可以出于非商业用途使用此许可。许可方对您使用bilibili Index-TTS模型的输出或基于bilibili Index-TTS模型得到的模型衍生品不主张任何权利，但您必须满足如下许可限制条件：
-1. 您不得出于任何军事或非法目的使用、复制、修改、合并、发布、分发、复制或创建bilibili Index-TTS 模型的全部或部分衍生品。您同意在使用bilibili Index许可的模型或其模型的衍生物品时，严格遵守本协议附件A所列举的各项使用限制。
-2. 如果您计划将 bilibili Index-TTS 模型及模型衍生品用作商业用途，应当按照本协议附则提供的联络方式，事先向许可方登记并获得许可方的书面授权。
-3. 您对 bilibili Index-TTS 模型的使用和修改（包括使用 bilibili Index-TTS 模型的输出或者基于 bilibili Index-TTS 模型得到的模型衍生品）不得违反任何国家的法律法规，尤其是中华人民共和国的法律法规，不得侵犯任何第三方的合法权益，包括但不限于肖像权、名誉权、隐私权等人格权，著作权、专利权、商业秘密等知识产权，或者其他财产权益。
-4. 您必须向 bilibili Index-TTS 模型或其模型衍生品的任何第三方使用者提供 bilibili Index-TTS 模型的来源以及本协议的副本。
-5. 您修改 bilibili Index-TTS 模型得到模型衍生品，必须以显著的方式说明修改的内容，且上述修改不得违反本协议的许可限制条件，也不能允许、协助或以其他方式使得第三方违反本协议中的许可限制条件。
-
-第三部分：知识产权
-1. bilibili Index-TTS 模型的所有权及其相关知识产权，由许可方单独所有。
-2. 在任何情况下，未经许可方事先书面同意，您不得使用许可方任何商标、服务标记、商号、域名、网站名称或其他显著品牌特征（以下统称为"标识"），包括但不限于明示或暗示您自身为“许可方”。未经许可方事先书面同意，您不得将本条款前述标识以单独或结合的任何方式展示、使用或申请注册商标、进行域名注册等，也不得向他人明示或暗示有权展示、使用、或以其他方式处理这些标识的权利。由于您违反本协议使用许可方上述标识等给许可方或他人造成损失的，由您承担全部法律责任。
-3. 在许可范围内，您可以对 bilibili Index-TTS 模型进行修改以得到模型衍生品，对于模型衍生品中您付出创造性劳动的部分，您可以主张该部分的知识产权。
-
-第四部分：免责声明及责任限制
-1. 在任何情况下，许可方不对您根据本协议使用 bilibili Index-TTS 模型而产生或与之相关的任何直接、间接、附带的后果、以及其他损失或损害承担责任。若由此导致许可方遭受损失，您应当向许可方承担全部赔偿责任。
-2. 模型中的模型参数仅仅是一种示例，如果您需要满足其他要求，需自行训练，并遵守相应数据集的许可协议。您将对 bilibili Index-TTS 模型的输出及模型衍生品所涉及的知识产权风险或与之相关的任何直接、间接、附带的后果、以及其他损失或损害负责。
-3. 尽管许可方在 bilibili Index-TTS 模型训练的所有阶段，都坚持努力维护数据的合规性和准确性，但受限于 bilibili Index-TTS 模型的规模及其概率固有的随机性因素影响，其输出结果的准确性无法得到保证，bilibili Index-TTS模型存在被误导的可能。因此，许可方在此声明，许可方不承担您因使用 bilibili Index-TTS 模型及其源代码而导致的数据安全问题、声誉风险，或任何涉及 bilibili Index-TTS 模型被误导、误用、传播或不正当使用而产生的任何风险和责任。
-4. 本协议所称损失或损害包括但不限于下列任何损失或损害（无论此类损失或损害是不可预见的、可预见的、已知的或其他的）:(i)收入损失;(ii)实际或预期利润损失；(ii)货币使用损失；(iv)预期节约的损失；(v)业务损失；(vi)机会损失；(vii)商誉、声誉损失；(viii)软件的使用损失；或(x)任何间接、附带的特殊或间接损害损失。
-5. 除非适用的法律另有要求或经过许可方书面同意，否则许可方将按“现状”授予bilibili Index-TTS 模型的许可。针对本协议中的 bilibili Index-TTS 模型，许可方不提供任何明示、暗示的保证，包括但不限于：关于所有权的任何保证或条件、关于适销性的保证或条件、适用于任何特定目的的保证或条件、过去、现在或未来关于 bilibili Index-TTS 模型不侵权的任何类型的保证、以及因任何交易过程、贸易使用（如建议书、规范或样品）而产生的任何保证。您将对其通过使用、复制或再分发等方式利用 bilibili Index-TTS 模型所产生的风险与后果，独自承担责任。
-6. 您充分知悉并理解同意，bilibili Index-TTS 模型中可能包含个人信息。您承诺将遵守所有适用的法律法规进行个人信息的处理，特别是遵守《中华人民共和国个人信息保护法》的相关规定。请注意，许可方给予您使用 bilibili Index-TTS 模型的授权，并不意味着您已经获得处理相关个人信息的合法性基础。您作为独立的个人信息处理者，需要保证在处理 bilibili Index-TTS 模型中可能包含的个人信息时，完全符合相关法律法规的要求，包括但不限于获得个人信息主体的授权同意等，并愿意独自承担由此可能产生的任何风险和后果。
-7. 您充分理解并同意，许可方有权依合理判断对违反有关法律法规或本协议规定的行为进行处理，对您的违法违规行为采取适当的法律行动，并依据法律法规保存有关信息向有关部门报告等，您应独自承担由此而产生的一切法律责任。
-
-第五部分：品牌曝光与显著标识
-1. 您同意并理解，如您将您基于 bilibili Index-TTS 模型二次开发的模型衍生品在国内外的开源社区提供开源许可的，您需要在该开源社区以显著方式标注该模型衍生品系基于 bilibili Index-TTS 模型进行的二次开发，标注内容包括但不限于“bilibili Index ”以及与 bilibili Index-TTS 模型相关的品牌的其他元素。
-2. 您同意并理解，如您将 bilibili Index-TTS 模型二次开发的模型衍生品参加国内外任何组织和个人举行的排名活动，包括但不限于针对模型性能、准确度、算法、算力等任何维度的排名活动，您均需在模型说明中以显著方式标注该模型衍生品系基于 bilibili Index-TTS 模型进行的二次开发，标注内容包括但不限于“bilibili Index Inside”以及与 bilibili Index-TTS 模型相关的品牌的其他元素。
-
-第六部分：其他
-1.许可方在法律法规许可的范围内对协议条款享有最终解释权。
-2.本协议的订立、效力、解释、履行、修改和终止，使用 bilibili Index-TTS 模型以及争议的解决均适用中华人民共和国大陆地区（仅为本协议之目的，不包括香港、澳门和台湾）法律，并排除冲突法的适用。
-3.因使用 bilibili Index-TTS 模型而发生的任何争议，各方应首先通过友好协商的方式加以解决。协商不成时，向许可方所在地人民法院提起诉讼。
-4.本协议的英文版本如若在理解上与中文版本产生冲突的，以中文版本为准。
-5.若您期望基于本协议的许可条件与限制，将 bilibili Index-TTS 模型或其衍生品用作商业用途，请您按照如下方式联系许可方，以进行登记并向许可方申请书面授权：联系邮箱：xuanwu@bilibili.com
-
-附件 A ：使用限制
-您同意不以下述目的和方式使用模型或模型的衍生物：
-以任何违反任何适用的国家或国际法律或法规或侵犯任何第三方合法权益的方式；
-用于任何军事目的；
-以任何方式用于剥削、伤害或企图剥削或伤害未成年人；
-生成或传播可验证的虚假信息和/或内容，意图伤害他人；
-生成或传播受适用监管要求限制的不适当内容；
-在未经适当授权或不合理使用的情况下生成或传播个人可识别信息；
-诽谤、贬低或以其他方式骚扰他人；
-用于对个人的法律权利产生不利影响或创建或修改具有约束力的可执行义务的完全自动化决策；
-用于基于在线或离线社会行为或已知或预测的个人或个性特征对个人或群体进行歧视或伤害的任何目的；
-为了对特定群体的个人造成或可能造成身体或心理伤害，利用该群体的年龄、社会、身体或心理特征的任何漏洞，从而严重扭曲属于该群体的个人的行为；
-用于任何旨在或具有基于法律保护的特征或类别对个人或群体进行歧视的目的
diff --git a/INDEX_MODEL_LICENSE_EN.txt b/INDEX_MODEL_LICENSE_EN.txt
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-bilibili Model Use License Agreement
-
-By clicking “I agree” to this bilibili Model Use License Agreement (“this Agreement”) , or by otherwise using any portion or element of the Model or any Derivative Work, you will be deemed to have recognized and accepted the content of this Agreement, which is effective immediately. If you do not agree to this Agreement, you must immediately cease all use and permanently delete the Model and any Derivative Works.
-
-1. Definitions
-1.1 “This Agreement”: means the bilibili Model Use License Agreement, including all of its terms and conditions.
-1.2 “We”, “us”, or “our”: means bilibili , the original right-holder of the Model.
-1.3 “You”: means any natural person or legal entity exercising rights granted by this Agreement and/or using the Model for any purpose and in any field of use.
-1.4 “Model”: means the artificial-intelligence model named “bilibili indextts2”, including but not limited to model weights and final code, in each case only to the extent that such components are published by us at https://github.com/index-tts/index-tts.
-1.5 “Derivative Work”: means any derivative of the Model, including without limitation:
- (i) any modification of the Model, model outputs, or their derivatives;
- (ii) any work based on the Model, model outputs, or their derivatives; 
- (iii) any other machine learning model which is created by re-training, fine-tuning, quantizing, LoRA, parameter-efficient fine-tuning, or any other method involving incremental weights or merged checkpoints, in each case based on the Model, model outputs, or their derivatives.
-1.6 “Use”: means downloading, copying, training, modifying, creating Derivative Works, distributing, publishing, running, fine-tuning, publicly displaying, communicating to the public, or otherwise exploiting the Model or any Derivative Work.
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-2. Scope of License and Restrictions
-2.1 Subject to the terms and conditions of this Agreement, we grant you a worldwide, non-exclusive, non-transferable, royalty-free limited license to Use the Model or any Derivative Work based on the intellectual properties or other rights owned by Us embodied in the Model or any Derivative Work.
-2.2 If You intend to Use, or have already Used, the Model or any Derivative Work, and either (i) your or any of your Affiliates’ products or services had more than 100 million monthly active users in the immediately preceding calendar month, or (ii) your or any of your Affiliates’ annual revenue in the immediately preceding calendar year exceeded RMB 1 billion, You must request a separated license from us, which We may grant to You in our sole discretion. You are not authorized to exercise any of the rights under this Agreement unless and until We have expressly granted You such rights in writing.
-2.3 This Agreement is an open-source license for the Model in which we possess intellectual properties and other rights. It governs your Use of the Model only and does not limit any rights that we have regarding the Model.
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-3. Disclaimer and Risk Allocation
-3.1 The Model and any outputs generated thereby are provided “AS IS,” without warranty of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, non-infringement, absence of errors or omissions, continuity, accuracy, reliability, or stability. You are solely responsible for determining the appropriateness of using or redistributing the Model and assume all risks associated with exercising any rights granted under this Agreement.
-3.2 You shall bear sole responsibility for any infringement, illegality, breach of contract, damages, fines, regulatory investigations, or other liabilities (including, without limitation, infringement of third-party patents, copyrights, trademarks, trade secrets, personality rights, data-protection rights, or any other rights) arising out of or related to your Use of the Model or any outputs generated thereby. We assume no joint, several, supplementary, or advance payment liability.
-3.3 Under no circumstances shall we be liable to you or any third party for any direct, indirect, incidental, special, punitive, or consequential damages (including, without limitation, loss of data, business interruption, or loss of profits) arising out of or related to the Use of the Model, even if we have been advised of the possibility of such damages.
-3.4 Additional Obligations for You and Downstream Recipients
-a) You must ensure that any downstream recipient of the Model or any Derivative Work that you distribute complies with this Agreement, and you must impose appropriate contractual terms on such downstream recipients. If any downstream recipient breaches this Agreement, you shall be responsible for the consequences thereof.
-b) You must retain all original copyright notices and a copy of this Agreement in every copy of the Model or any Derivative Work that you Use.
-c) You may not Use the bilibili indextts2 or any Derivative Work to improve any AI model, except for the bilibili indextts2 itself, its Derivative Works，or non-commercial AI models.
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-4. Compliance Obligations
-4.1 Usage Restrictions
-a) If you distribute a Derivative Work, you must clearly state in the distribution page or accompanying documentation: “Any modifications made to the original model in this Derivative Work are not endorsed, warranted, or guaranteed by the original right-holder of the original model, and the original right-holder disclaims all liability related to this Derivative Work.”
-b) If your Use of the Model or any Derivative Work incorporates any third-party data or weights, you must obtain all necessary authorizations on your own and bear full responsibility for compliance.
-c) You may not Use the Model or any Derivative Work for any purpose that violates the laws or regulatory requirements of the jurisdiction where the outputs and/or the Model are generated or used (including, without limitation, generating false information, discriminatory content, or content that infringes privacy).
-d) If the Model or any Derivative Work is capable of generating content, you must ensure that such content does not violate the laws or regulatory requirements of the applicable jurisdiction (including, without limitation, generating false information, discriminatory content, or content that infringes privacy).
-4.2 Prohibited High-Risk Use
-You must ensure that the Model and any Derivative Work are not deployed, directly or indirectly, in high-risk scenarios such as medical diagnosis, autonomous driving, military applications, critical-infrastructure control, large-scale biometric surveillance, or automated decision-making (e.g., credit or employment evaluations). If you insist on such deployment, you must independently complete all compliance obligations under applicable laws and regulations (including but not limited to GDPR, CCPA, HIPAA, export-control laws, and AI-specific regulations), and we shall bear no liability for any consequences arising therefrom.
-4.3 Infringement Liability
-Should any third party raise claims against you with respect to any Derivative Work you develop or your Use of the Model or any Derivative Work, you shall bear full and independent responsibility for defending against and resolving such claims. If your actions cause us to incur any third-party claims, administrative penalties, or other losses, you shall indemnify us for all losses we thereby suffer, including but not limited to attorney fees, litigation costs, damages, and fines, and shall take all necessary measures to eliminate any adverse impact on us.
-
-5. Reserved Rights
-5.1 We reserve the right to revoke the license granted to you under this Agreement in the event of your breach. Upon revocation, you must immediately cease all Use and permanently delete all copies of the Model and any Derivative Work. Sections 3 and 6 of this Agreement shall survive termination of this Agreement under this circumstance.
-5.2 Nothing in this Agreement grants you any right to use our trade names, trademarks, service marks, or product names, except as reasonably and customarily required to describe the origin of the Model or any Derivative Work—such as reproducing the content of a NOTICE file under Section 3.4 of this Agreement.
-5.3 If you or any of your Affiliates institutes or participates in any legal proceeding (including any cross-claim or counterclaim in a lawsuit) against us or any of our Affiliates, alleging that the Model or any output or any portion thereof infringes any intellectual property or other rights that you own or control, all licenses granted to you under this Agreement shall terminate automatically as of the date such proceeding is filed.
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-6. Governing Law and Dispute Resolution
-6.1 This Agreement shall be governed by and construed in accordance with the laws of the People’s Republic of China.
-6.2 In the event of any dispute arising out of or in connection with this Agreement, the parties shall first attempt to resolve such dispute through friendly negotiation. If negotiation fails, the dispute shall be submitted to the Shanghai Arbitration Commission for arbitration in accordance with its then-effective arbitration rules. The arbitration award shall be final and binding on both parties. The prevailing party shall be entitled to recover reasonable costs, including notarization and investigation fees, arbitration costs, attorneys’ fees, and travel expenses.
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-7. Severability
-If any provision of this Agreement is held to be invalid or unenforceable, the remaining provisions shall remain in full force and effect. The invalid or unenforceable provision shall be replaced with a valid and enforceable provision that, to the maximum extent permitted by law, most closely reflects the original intent of the invalid or unenforceable provision.
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-8. Version Updates
-We may release new versions of the AI Model Use License Agreement. Any new version will apply only to Uses occurring after the date of its release. If you obtained the Model under an earlier version, the new version will not have retroactive effect; nevertheless, you are encouraged to adopt the new version voluntarily.
-
-9. Language Version
-In the event of any discrepancy or conflict between the English-language version set forth above and the Chinese-language version of this bilibili Model Use License Agreement, the Chinese-language version shall prevail for all purposes and shall govern the rights and obligations of the parties.
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diff --git a/LICENSE b/LICENSE
index e72bfdd..a41d45f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,674 +1,57 @@
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- Everyone is permitted to copy and distribute verbatim copies
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-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    <program>  Copyright (C) <year>  <name of author>
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<https://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<https://www.gnu.org/licenses/why-not-lgpl.html>.
\ No newline at end of file
+bilibili Model Use License Agreement
+
+By clicking “I agree” to this bilibili Model Use License Agreement (“this Agreement”) , or by otherwise using any portion or element of the Model or any Derivative Work, you will be deemed to have recognized and accepted the content of this Agreement, which is effective immediately. If you do not agree to this Agreement, you must immediately cease all use and permanently delete the Model and any Derivative Works.
+
+1. Definitions
+1.1 “This Agreement”: means the bilibili Model Use License Agreement, including all of its terms and conditions.
+1.2 “We”, “us”, or “our”: means bilibili , the original right-holder of the Model.
+1.3 “You”: means any natural person or legal entity exercising rights granted by this Agreement and/or using the Model for any purpose and in any field of use.
+1.4 “Model”: means the artificial-intelligence model named “bilibili indextts2”, including but not limited to model weights and final code, in each case only to the extent that such components are published by us at https://github.com/index-tts/index-tts.
+1.5 “Derivative Work”: means any derivative of the Model, including without limitation:
+ (i) any modification of the Model, model outputs, or their derivatives;
+ (ii) any work based on the Model, model outputs, or their derivatives; 
+ (iii) any other machine learning model which is created by re-training, fine-tuning, quantizing, LoRA, parameter-efficient fine-tuning, or any other method involving incremental weights or merged checkpoints, in each case based on the Model, model outputs, or their derivatives.
+1.6 “Use”: means downloading, copying, training, modifying, creating Derivative Works, distributing, publishing, running, fine-tuning, publicly displaying, communicating to the public, or otherwise exploiting the Model or any Derivative Work.
+
+2. Scope of License and Restrictions
+2.1 Subject to the terms and conditions of this Agreement, we grant you a worldwide, non-exclusive, non-transferable, royalty-free limited license to Use the Model or any Derivative Work based on the intellectual properties or other rights owned by Us embodied in the Model or any Derivative Work.
+2.2 If You intend to Use, or have already Used, the Model or any Derivative Work, and either (i) your or any of your Affiliates’ products or services had more than 100 million monthly active users in the immediately preceding calendar month, or (ii) your or any of your Affiliates’ annual revenue in the immediately preceding calendar year exceeded RMB 1 billion, You must request a separated license from us, which We may grant to You in our sole discretion. You are not authorized to exercise any of the rights under this Agreement unless and until We have expressly granted You such rights in writing.
+2.3 This Agreement is an open-source license for the Model in which we possess intellectual properties and other rights. It governs your Use of the Model only and does not limit any rights that we have regarding the Model.
+
+3. Disclaimer and Risk Allocation
+3.1 The Model and any outputs generated thereby are provided “AS IS,” without warranty of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, non-infringement, absence of errors or omissions, continuity, accuracy, reliability, or stability. You are solely responsible for determining the appropriateness of using or redistributing the Model and assume all risks associated with exercising any rights granted under this Agreement.
+3.2 You shall bear sole responsibility for any infringement, illegality, breach of contract, damages, fines, regulatory investigations, or other liabilities (including, without limitation, infringement of third-party patents, copyrights, trademarks, trade secrets, personality rights, data-protection rights, or any other rights) arising out of or related to your Use of the Model or any outputs generated thereby. We assume no joint, several, supplementary, or advance payment liability.
+3.3 Under no circumstances shall we be liable to you or any third party for any direct, indirect, incidental, special, punitive, or consequential damages (including, without limitation, loss of data, business interruption, or loss of profits) arising out of or related to the Use of the Model, even if we have been advised of the possibility of such damages.
+3.4 Additional Obligations for You and Downstream Recipients
+a) You must ensure that any downstream recipient of the Model or any Derivative Work that you distribute complies with this Agreement, and you must impose appropriate contractual terms on such downstream recipients. If any downstream recipient breaches this Agreement, you shall be responsible for the consequences thereof.
+b) You must retain all original copyright notices and a copy of this Agreement in every copy of the Model or any Derivative Work that you Use.
+c) You may not Use the bilibili indextts2 or any Derivative Work to improve any AI model, except for the bilibili indextts2 itself, its Derivative Works，or non-commercial AI models.
+
+4. Compliance Obligations
+4.1 Usage Restrictions
+a) If you distribute a Derivative Work, you must clearly state in the distribution page or accompanying documentation: “Any modifications made to the original model in this Derivative Work are not endorsed, warranted, or guaranteed by the original right-holder of the original model, and the original right-holder disclaims all liability related to this Derivative Work.”
+b) If your Use of the Model or any Derivative Work incorporates any third-party data or weights, you must obtain all necessary authorizations on your own and bear full responsibility for compliance.
+c) You may not Use the Model or any Derivative Work for any purpose that violates the laws or regulatory requirements of the jurisdiction where the outputs and/or the Model are generated or used (including, without limitation, generating false information, discriminatory content, or content that infringes privacy).
+d) If the Model or any Derivative Work is capable of generating content, you must ensure that such content does not violate the laws or regulatory requirements of the applicable jurisdiction (including, without limitation, generating false information, discriminatory content, or content that infringes privacy).
+4.2 Prohibited High-Risk Use
+You must ensure that the Model and any Derivative Work are not deployed, directly or indirectly, in high-risk scenarios such as medical diagnosis, autonomous driving, military applications, critical-infrastructure control, large-scale biometric surveillance, or automated decision-making (e.g., credit or employment evaluations). If you insist on such deployment, you must independently complete all compliance obligations under applicable laws and regulations (including but not limited to GDPR, CCPA, HIPAA, export-control laws, and AI-specific regulations), and we shall bear no liability for any consequences arising therefrom.
+4.3 Infringement Liability
+Should any third party raise claims against you with respect to any Derivative Work you develop or your Use of the Model or any Derivative Work, you shall bear full and independent responsibility for defending against and resolving such claims. If your actions cause us to incur any third-party claims, administrative penalties, or other losses, you shall indemnify us for all losses we thereby suffer, including but not limited to attorney fees, litigation costs, damages, and fines, and shall take all necessary measures to eliminate any adverse impact on us.
+
+5. Reserved Rights
+5.1 We reserve the right to revoke the license granted to you under this Agreement in the event of your breach. Upon revocation, you must immediately cease all Use and permanently delete all copies of the Model and any Derivative Work. Sections 3 and 6 of this Agreement shall survive termination of this Agreement under this circumstance.
+5.2 Nothing in this Agreement grants you any right to use our trade names, trademarks, service marks, or product names, except as reasonably and customarily required to describe the origin of the Model or any Derivative Work—such as reproducing the content of a NOTICE file under Section 3.4 of this Agreement.
+5.3 If you or any of your Affiliates institutes or participates in any legal proceeding (including any cross-claim or counterclaim in a lawsuit) against us or any of our Affiliates, alleging that the Model or any output or any portion thereof infringes any intellectual property or other rights that you own or control, all licenses granted to you under this Agreement shall terminate automatically as of the date such proceeding is filed.
+
+6. Governing Law and Dispute Resolution
+6.1 This Agreement shall be governed by and construed in accordance with the laws of the People’s Republic of China.
+6.2 In the event of any dispute arising out of or in connection with this Agreement, the parties shall first attempt to resolve such dispute through friendly negotiation. If negotiation fails, the dispute shall be submitted to the Shanghai Arbitration Commission for arbitration in accordance with its then-effective arbitration rules. The arbitration award shall be final and binding on both parties. The prevailing party shall be entitled to recover reasonable costs, including notarization and investigation fees, arbitration costs, attorneys’ fees, and travel expenses.
+
+7. Severability
+If any provision of this Agreement is held to be invalid or unenforceable, the remaining provisions shall remain in full force and effect. The invalid or unenforceable provision shall be replaced with a valid and enforceable provision that, to the maximum extent permitted by law, most closely reflects the original intent of the invalid or unenforceable provision.
+
+8. Version Updates
+We may release new versions of the AI Model Use License Agreement. Any new version will apply only to Uses occurring after the date of its release. If you obtained the Model under an earlier version, the new version will not have retroactive effect; nevertheless, you are encouraged to adopt the new version voluntarily.
+
+9. Language Version
+In the event of any discrepancy or conflict between the English-language version set forth above and the Chinese-language version of this bilibili Model Use License Agreement, the Chinese-language version shall prevail for all purposes and shall govern the rights and obligations of the parties.
diff --git a/INDEX_MODEL_LICENSE_ZH.txt b/LICENSE_ZH.txt
similarity index 100%
rename from INDEX_MODEL_LICENSE_ZH.txt
rename to LICENSE_ZH.txt
diff --git a/pyproject.toml b/pyproject.toml
index ee7a668..10ac727 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,6 @@ name = "indextts"
 version = "2.0.0"
 description = "IndexTTS2: A Breakthrough in Emotionally Expressive and Duration-Controlled Auto-Regressive Zero-Shot Text-to-Speech"
 authors = [{ name = "Bilibili IndexTTS Team" }]
-license = "Apache-2.0"
 license-files = ["LICEN[CS]E*", "INDEX_MODEL_LICENSE*"]
 readme = "README.md"
 classifiers = [
diff --git a/tools/i18n/locale/en_US.json b/tools/i18n/locale/en_US.json
index 9d7255a..abfbbe2 100644
--- a/tools/i18n/locale/en_US.json
+++ b/tools/i18n/locale/en_US.json
@@ -1,5 +1,5 @@
 {
-  "本软件以Apache-2.0协议开源, 作者不对软件具备任何控制力, 使用软件者、传播软件导出的声音者自负全责.": "This software is open-sourced under the Apache-2.0 License. The author has no control over the software, and users of the software, as well as those who distribute the audio generated by the software, assume full responsibility.",
+  "本软件以自拟协议开源, 作者不对软件具备任何控制力, 使用软件者、传播软件导出的声音者自负全责.": "This software is open-sourced under customized license. The author has no control over the software, and users of the software, as well as those who distribute the audio generated by the software, assume full responsibility.",
   "如不认可该条款, 则不能使用或引用软件包内任何代码和文件. 详见根目录LICENSE.": "If you do not agree to these terms, you are not permitted to use or reference any code or files within the software package. For further details, please refer to the LICENSE files in the root directory.",
   "时长必须为正数": "Duration must be a positive number",
   "请输入有效的浮点数": "Please enter a valid floating-point number",
diff --git a/tools/i18n/locale/zh_CN.json b/tools/i18n/locale/zh_CN.json
index 4554850..9cdf5c4 100644
--- a/tools/i18n/locale/zh_CN.json
+++ b/tools/i18n/locale/zh_CN.json
@@ -1,5 +1,5 @@
 {
-  "本软件以Apache-2.0协议开源, 作者不对软件具备任何控制力, 使用软件者、传播软件导出的声音者自负全责.": "本软件以Apache-2.0协议开源, 作者不对软件具备任何控制力, 使用软件者、传播软件导出的声音者自负全责.",
+  "本软件以自拟协议开源, 作者不对软件具备任何控制力, 使用软件者、传播软件导出的声音者自负全责.": "本软件以自拟协议开源, 作者不对软件具备任何控制力, 使用软件者、传播软件导出的声音者自负全责.",
   "如不认可该条款, 则不能使用或引用软件包内任何代码和文件. 详见根目录LICENSE.": "如不认可该条款, 则不能使用或引用软件包内任何代码和文件. 详见根目录LICENSE.",
   "时长必须为正数": "时长必须为正数",
   "请输入有效的浮点数": "请输入有效的浮点数",