[dragonwriter]

> Open source video models are going to beat closed source. Ecosystem and tools matter. Midjourney has name recognition, but nobody talks about Dall-E anymore. The same will happen to Sora. Flux and Stable Diffusion won images, and Hunyuan and similar will win video.

Neither Flux (except the distilled Flux Schnell model) nor Stable Diffusion has open licensed weights, Stable Diffusion and Flux Dev are weights-available with limited, non-open licenses, Flux Pro is hosted-only.

[echelon]

Just because the OSI doesn't like Open RAIL doesn't make it not open source unless you're strictly talking about the OSD. The OSI can't even figure where the boundaries of open models lie - data, training code, weights, etc.

The RAIL licenses do have usage restrictions (eg. against harming minors, use in defamation, etc.), but they're completely unenforced.

Flux Schnell is Apache. LTX-1 is Apache.

[dragonwriter]

> Just because the OSI doesn’t like Open RAIL doesn’t make it not open source unless you’re strictly talking about the OSD.

If you aren’t talking about the OSD, you end up reducing “open source” to a semantically-null buzzword. But, in any case, I intentionally didn’t mention “open source”. The weights are under a use-restrictive license, not an open license, even leaving out the debates over what “source” is. And tha’s just SD1.x, SD2.x, and SDXL, which have the CreativeML OpenRAIL-M license (SD1.x) or CreativeML OpenRAIL++M licenses (SD2.x/SDXL). SD3.x has a far more restrictive license, as does Flux Dev.

> Flux Schnell is Apache.

Huh. It’s almost like I should have explicitly except Flux Schnell from the other Stable Diffusion and Flux models when I said they didn’t have open licenses.

Oh, I did.

> LTX-1 is Apache.

Yes, it is. LTX-1 is “neither Flux (except the distilled Flux Schnell model) nor Stable Diffusion”. AuraFlow (an image model) is also Apache, and while its behind Flux – Dev or Schnell – or SDXL in current mindshare, it got picked – largely for licensing reasons – as the basis for the next version of Pony Diffusion, a popular (largely, though not exclusively, for NSFW capabilities) community model series whose previous versions were based on SD1.5 and SDXL, which gives it a good chance of becoming a major player.

[fc417fc802]

> Just because the OSI doesn't like ...

Statements that begin like this are nearly always rhetorical attempts to subvert the standard usage of the terminology.

> but they're completely unenforced

Utterly irrelevant from a legal perspective. Also entirely circumstantial in that it depends entirely on the license holder and can easily vary between end users.

I'm also rather confused how RAIL entered into this to begin with. Unless I've missed something significant, most variants (or at least high end variants) of Stable Diffusion [0] and Flux [1] are under non-commercial licenses.

Not that I take issue with that. I've no delusion that a company is going to spend hundreds of thousands of dollars on compute and then open the floor to competitors who literally clone their data.

[0] https://huggingface.co/stabilityai/stable-diffusion-3.5-larg...

[1] https://github.com/black-forest-labs/flux/blob/main/model_li...