Downloading an open AI video model is free and easy. Using what it produces in a client project or a monetised channel is a legal question that many creators never ask. Each model comes with a licence, and those licences differ a lot. This guide explains the common types, what to look for and how to stay on the safe side.
This is general information, not legal advice. For important commercial projects, check the exact licence text and, if needed, ask a lawyer.
Why licences matter
A model licence is a contract between you and whoever released the weights. It can control:
- whether you may use the model and its outputs commercially;
- whether you must credit the creators;
- which uses are forbidden, regardless of commercial status;
- whether you may modify the model, train LoRAs on it or share derivatives;
- limits based on company size or number of users.
Breaking a licence can mean losing the right to use the model and, in commercial settings, legal claims.
Common licence types
Permissive open-source licences
Licences such as Apache 2.0 and MIT allow commercial use, modification and redistribution with few conditions, usually keeping the licence notice when you redistribute the model itself. Outputs can generally be used freely. These are the easiest licences for creators.
Open licences with use restrictions
Many AI models use “responsible AI” style licences. They allow broad use, including commercial, but list forbidden uses, for example illegal activity, harassment, deceptive impersonation or certain sensitive applications. These restrictions apply to you and often must be passed on to anyone you share the model or derivatives with.
Community or custom licences
Some companies release models under their own licence. These may allow free commercial use below a revenue or user threshold and require a paid licence above it, or they may require attribution, or forbid using outputs to train competing models. Read them carefully; the details vary widely.
Non-commercial and research-only licences
Some models may only be used for research or personal, non-commercial purposes. Using their outputs in ads, client work or monetised videos would break the licence. They are fine for learning and experimentation.
Outputs versus the model
Licences often treat the model and its outputs differently. A licence may say you own your outputs and can use them freely, while still restricting how you distribute the model itself. Others extend restrictions to outputs. Look specifically for sections titled “output”, “generated content” or similar.
Separately, copyright law in many countries does not automatically protect purely AI-generated material. That is a different question from the licence; see Copyright and AI Video.
LoRAs and fine-tunes
A LoRA or fine-tune built on a base model usually inherits the base model’s licence terms, and its creator may add their own conditions. When you download a LoRA, check both the LoRA’s licence and the base model’s. When you share your own LoRA, state which base model it uses and pass on any required restrictions.
Hosted services running open models
If a website runs an open model for you, two sets of terms apply: the service’s terms of use and, in many cases, the model’s licence. A service cannot generally give you more rights than the model licence allows. If a service is vague about which model it uses, you cannot be sure what licence applies.
A practical checklist
- Find the licence on the model’s official page or repository, not a third-party copy.
- Identify the licence type: permissive, restricted, custom or non-commercial.
- Check commercial use rules, including any revenue or user thresholds.
- Check the forbidden-uses list.
- Check attribution requirements.
- Check the rules for LoRAs, fine-tunes and outputs.
- Save a copy of the licence with the date you downloaded the model, because terms can change for later versions.
Keeping records
For commercial work, keep a simple project record: which model and version produced each shot, the licence at the time, which LoRAs were used and where they came from. If a client or platform ever asks how a video was made, you can answer quickly and confidently.
Common misunderstandings
- “Open weights means open source.” Not always. Many open-weight models have restrictive licences.
- “If it is on a model hub, I can use it commercially.” Hubs host many licence types; the hub does not grant rights.
- “Licences only matter if I sell the model.” Many restrict how you use outputs too.
- “Uncensored means unrestricted.” A model without a filter can still have a licence that forbids certain uses.
When in doubt
If a licence is unclear, choose a model with a clear permissive licence for commercial work, or contact the model’s creators for clarification. For high-value projects, a short consultation with a lawyer familiar with software licensing is cheap insurance.
A simple example
Imagine you are making a paid music video for a band. You plan to use an open video model, a style LoRA from a model hub and an upscaler. Before generating, you check that the video model’s licence allows commercial use of outputs, that the LoRA’s page permits commercial use and names the same base model, and that the upscaler’s licence has no output restrictions. You save all three licences in the project folder. It takes fifteen minutes, and if the band’s label later asks about rights, you have the answer ready.
Licences for supporting tools
Do not forget the smaller models in your pipeline. Upscalers, frame interpolation models, lip-sync models, voice generators and music tools all have their own licences. A video can be commercially clean at the generation stage and still be restricted because the soundtrack came from a non-commercial music model.
Frequently asked questions
Can I monetise YouTube videos made with open models?
If the model licence allows commercial use and the content follows YouTube’s rules, generally yes.
Do I have to credit the model?
Only if the licence requires attribution, but crediting tools is good practice anyway.
Can licences change?
New versions can have new licences. The licence you accepted for the version you downloaded usually continues to apply to that version.
