Wan 3.0 open source: weights on Hugging Face or API only?
fal says Alibaba's published Wan weights stop at Wan 2.2, and Wan 3 is an API model. What that means for Hugging Face searches, and the wan-3.0 id Sume hosts.
Not as far as the pages read on 2026-09-29 show. fal's Wan 3 page says Alibaba's published Wan weights currently stop at Wan 2.2 under Apache 2.0, and that Wan 3 is available as an API model. So a search for Wan 3.0 weights on Hugging Face has nothing to point at yet; the way to run it is an API such as Sume's wan-3.0 id.
The claim about weights is fal's, not Alibaba's own statement, so treat it as a snapshot: fal adds that it will note the licensing if Alibaba publishes weights. Read fal's Wan 3 page again before you build on it.
Which Wan versions have open weights?
According to fal's FAQ, the open-weight line ends at Wan 2.2. fal also lists open-weight Wan 2.1 and 2.2 endpoints with LoRA trainers, which is a hosted way to use those older releases.
| Release | Weights per fal | How to reach it |
|---|---|---|
| Wan 2.1 and 2.2 | Open weights, Apache 2.0 for 2.2 | Download, or fal endpoints |
| Wan 2.7 | Not described as open | fal API, 2 to 15 seconds |
| Wan 3.0 | API model, no weights noted | fal API; wan-3.0 on Sume |
Does the Wan 3 page name a Hugging Face repository?
No. The page has no Hugging Face link and no license terms for Wan 3 beyond the note above. Any repository that claims to hold Wan 3.0 weights is unverified from this source, so check who published it before you download.
What does Sume host?
Sume lists wan-3.0 in its video catalog. Send it to POST /v1/videos like any other model; the Video generation docs give it a 2 to 30 second range. You get a job id and poll for the result, with no GPU or checkpoint to manage.
Hosted means you cannot change the weights or run offline. If you need fine-tuning, the open Wan 2.x releases are the ones fal describes as open.
How do I check the catalog myself?
Call GET /v1/videos/models. The response lists each model's supported durations and resolutions, so it is the current answer for wan-3.0 rather than this post.
curl "https://api.sume.com/v1/videos/models" \
-H "Authorization: Bearer $SUME_API_KEY"What should I do if I need open weights today?
Choose by what you need. If you want to self-host or fine-tune, the releases fal calls open-weight, Wan 2.1 and 2.2, are the candidates, and you carry the GPU, storage and serving work. If you want the newest Wan quality and 30-second clips, the API is the only route the page describes.
Two checks keep you honest. First, read the license file in whatever repository you download from; fal quotes Apache 2.0 only for Wan 2.2. Second, compare clip lengths: fal lists 2 to 15 seconds for Wan 2.7, while Sume's docs list 2 to 30 seconds for wan-3.0, so an older open checkpoint is not a drop-in for a long-shot workflow.
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Written by Sume