Open weights come under two kinds of licence
The word open covers two different things in this column. Nine of the 15 families publish under a licence whose text is standard, Apache 2.0 or MIT, cleared once and cleared for good. Five publish under a name belonging to a company. One splits by model size. As of 2026-09-22.
| Item | What is published | Detail |
|---|---|---|
| Apache 2.0 | Seven families | Allegro, FramePack, LTX-Video, MAGI-1, Mochi 1, Open-Sora, Wan |
| A company's own name | Five families | tencent-hunyuan-community, skywork-license, stable-video-diffusion-community, stabilityai-ai-community, NVIDIA Open Model License |
| MIT | Two families | LongCat-Video and Step-Video-T2V |
| Split by model size | One family | CogVideoX: 2B Apache 2.0, 5B a separate project licence |
Inclusion rule. Licence names as stated in the vendor's own repository or on the vendor's model card. This register records the name and does not paraphrase terms. Order. By how many families share that licence shape, most first.
1A standard licence is one you do not have to read
Apache 2.0 and MIT are known ground: a reader who has cleared either once has cleared it for every release that carries it. Seven families here use the first and two use the second. A licence named after a company has to be read every time, because nothing about the name tells you what is in it.
That difference is practical rather than moral. Both are published weights, both can be downloaded, and only one of them can be assessed without a lawyer's hour.
2The split case is the one that catches people
Checking the licence on a family's smaller model and assuming it carries to the larger one is a reasonable-looking move that is wrong here. The register keeps licence per model rather than per family for that reason.
It is also a reminder that a repository is not a single artefact. One URL can hold several releases under different terms, and the terms live in the model card rather than the README.
3What this register deliberately does not do
It does not summarise what any licence permits. A one-line paraphrase of a bespoke licence is the sort of helpfulness somebody ends up relying on, and the licence file is one click from every row here.
What it does do is name the licence exactly and date the reading, so that a reader knows whether they are on known ground before they spend any time.
- Licencetencent-hunyuan-community, a vendor-written licence rather than a standard permissive oneshown on the model card
- LicenceSplit: CogVideoX-2B is Apache 2.0 while CogVideoX-5B carries a separate CogVideoX licencediffers by model size inside one family
- LicenceApache 2.0stated in the repository
- Licenceskywork-licensethe tag on the vendor's model card
- Licencestable-video-diffusion-community, with commercial use directed to a separate licence pagethe tag on the model card
- Licencestabilityai-ai-communitythe tag on the model card
- LicenceNVIDIA Open Model License, with the card stating that models are commercially usablea vendor-written licence answering the commercial question in its own text
- Licencemit, the same tag on the repository and on the model cardstated in the repository
- LicenceMIT Licensestated in the repository
- Licenceapache-2.0the tag on the vendor's model card
4Running the model without the hardware
Instead of local hardware for “Two kinds of open”, SceneMixer runs hosted models; its guides describe the result:
Wan 3.0 is Alibaba Cloud's video generation model on the Model Studio platform, called through an asynchronous submit-then-poll API, in two tiers: the standard wan3.0-video and the faster wan3.0-video-prime.
SceneMixer, Wan 3.0 for AI Short Drama (2026): Parameters, Reference Limits, Moderation Rules and the 30-Second Take (read 2026-10-13)
In the editor this tier is greyed out for such a segment; pick a Seedance 2.5 or Wan tier.
SceneMixer, Seedance 2.0 (standard tier) — “Can a segment longer than 15 seconds use this tier?” (read 2026-10-13)
5Sources
Repository statements and hosted rates are linked from the model pages and the method page, checked 2026-09-22. Hardware figures are set out on requirements. Nearby: The VRAM ladder, Naming the card, How long a clip.