DeepSeek Open Source License

This license gives you broad, free, permanent rights to use, share, and build on DeepSeek's Model, but comes with strict rules about what you cannot do with it—such as using it to automate decisions that affect someone's legal rights, to discriminate based on personal characteristics, or to harm minors. If you redistribute or build derivatives, you must pass those same restrictions on to your users in a binding way. DeepSeek excludes itself from liability for any damages arising from the Model, and can remotely cut off your access if you violate the terms.

The DeepSeek Open Source License establishes the terms under which DeepSeek grants licensees broad copyright and patent rights to reproduce, prepare, display, perform, sublicense, distribute, make, use, offer to sell, sell, and import the Model on a perpetual, worldwide, royalty-free, and irrevocable basis. These grants are conditioned on a set of high-severity use-based restrictions, including prohibitions on fully automated decision-making that adversely impacts legal rights, discriminatory or harmful use based on behavioral or predicted personal characteristics, and any exploitation or harm directed at minors. Licensees bear accountability for all outputs generated and their downstream uses, and must propagate the use-based restrictions as enforceable provisions in any legal agreement governing redistribution or derivative works, ensuring the restriction floor persists through the entire chain of derivative versions. DeepSeek's own liability is comprehensively excluded across all categories of damages, and DeepSeek reserves the right to restrict access to the Model—including remotely—for violations of the License to the maximum extent permitted by law.

As a user or downstream licensee, you receive broad rights to use and redistribute the Model at no cost, but you are personally accountable for every output the Model generates and for how that output is subsequently used—including by others after it leaves your hands. You are prohibited from using the Model for fully automated decisions that affect legal rights, for purposes that discriminate or harm based on behavioral or predicted characteristics, or for anything that exploits or harms minors. DeepSeek has excluded itself from all damage liability, meaning you have no contractual remedy against DeepSeek for harms connected to the Model. You are also required to comply with applicable privacy laws as a binding contractual obligation under this License.