End User License Agreement (EULA)

This End User License Agreement (this “Agreement”) is entered into between Xi’an Venyo Zhixing Technology Co., Ltd. (“we”, “us”) and you, regarding the installation and use of the Putong-Agent software (the “Software”). By downloading, installing or using the Software, you confirm that you have read, understood and accepted this Agreement. If you do not agree, do not install or use the Software.

1. License Grant

Subject to your compliance with this Agreement, we grant you a free, non-exclusive, non-transferable, non-sublicensable license to:

install and use the Software for personal purposes or internal business purposes of your organization;
copy the Software for backup purposes;
use the Software on devices you own or control, without a limit on the number of devices.

2. Closed Source and Restrictions

The Software is provided in compiled form only and does not include source code. Except as expressly permitted by applicable law, you must not:

reverse engineer, decompile, disassemble, or otherwise attempt to derive the source code of the Software;
remove, circumvent or modify any copyright, trademark or other proprietary notices or technical limitations;
sell, rent, resell, redistribute the Software, or make it available to third parties as a service (except as agreed in this Agreement or a separate commercial agreement);
use the Software for unlawful purposes or to infringe the rights of others;
use the Software or its output in a manner that may harm us or any third party;
export, re-export or otherwise transfer the Software to sanctioned or embargoed countries or regions, or to restricted individuals or entities, or use it for restricted end uses such as weapons, nuclear, chemical or biological weapons, or missiles (see the Export Compliance Statement). You are responsible for ensuring your use complies with the export control and sanctions laws of your jurisdiction.

3. Third-Party Components

The Software includes third-party open-source components that are governed by their own licenses. See the “Third-Party Licenses” page and the NOTICE file shipped with each release. If, for a given component, its license conflicts with this Agreement, that third-party license prevails.

4. Model Providers and External Services

The Software does not provide any large language model service itself. You must configure your own third-party model providers (for example OpenAI, Anthropic or other compatible services). Their terms and privacy policies apply between you and them. We are not a party to that relationship and are not responsible for their service quality, availability or data practices.

5. Updates and Upgrades

Official channels: new versions are published only through the official website and official object storage. Obtain installers from those channels only; we accept no responsibility for installers obtained from third-party download sites.
Automatic update checks: the Software checks for updates automatically by default and, after you confirm, downloads and installs the new version. You can disable automatic checks in Settings and check manually instead.
Requests and statistics: an update check contacts our update API, which returns version metadata when available; if it is unavailable the Software falls back to reading the official version manifest. The fields involved, their purpose and how to turn reporting off are described in Section 4 of the Privacy Policy.
Integrity checking: installers are hash-verified before installation; a package that fails verification is not installed.
No downgrades: the Software only accepts updates with a higher version number and cannot roll itself back automatically. If you need an older version, uninstall and reinstall it from an official channel.
Test channels: we may publish versions marked as beta/preview. Test builds are for evaluation only and may be unstable; stay on the default channel for production use.

6. No Warranty

The Software is provided “AS IS” and “AS AVAILABLE”, without any express or implied warranties, including but not limited to merchantability, fitness for a particular purpose, title and non-infringement. We do not warrant that the Software will be error-free, uninterrupted or meet your specific requirements.

7. Limitation of Liability

To the maximum extent permitted by applicable law, we are not liable for any indirect, incidental, special, consequential or punitive damages (including lost profits, data loss or business interruption) arising from or related to the Software. Our aggregate liability is limited to the amount you actually paid us for the Software; where you use it free of charge, that limit is zero.

8. Enterprise Customization

Enterprise private deployment, custom development, technical support and SLA are governed by a separate commercial agreement and are not covered by the free license terms of this Agreement. A Data Processing Agreement (DPA) can be provided for business deliveries.

9. Termination

This license terminates automatically if you breach this Agreement. Upon termination, you must stop using the Software and delete all copies.

10. Governing Law and Disputes

This Agreement is governed by the laws of the People’s Republic of China. Disputes arising out of or relating to this Agreement shall first be resolved through friendly negotiation; failing that, they shall be submitted to the competent people’s court at our domicile. Mandatory consumer protection rights under the laws of your jurisdiction are not affected.

11. Changes and Contact

We may update this Agreement from time to time. Updated versions will be published on this website with an updated date; when this Agreement changes, the Software will prompt you to confirm again on your next launch, and you may continue to use it only after confirming. If you do not agree, stop using the Software and delete it.