Well, I was wondering about bias in the model, so I entered "a president" as the prompt. Looks like it has a bias alright, but it's even more specific than I expected...
Schnell is definitely worse in quality, although still impressive (it gets text right). Dev is the really good one that arguably outperforms the new Midjourney 6.1
What's the difference between pro and dev? Is the pro one also 12B parameters? Are the example images on the site (the patagonia guy, lego and the beach potato) generated with dev or pro?
I think they are mainly -dev and -schnell. Both models are 12B. -pro is the most powerful and raw, -dev is guidance distilled version of it and -schnell is step distilled version (where you can get pretty good results with 2-8 steps).
something about pro must be better than dev or it wouldn't be made API-only, but what exactly, how does guidance distilling affect pro it and what quality remains in dev?
I think they may have turned on the gating some time after this was submitted to HackerNews. Earlier this morning I definitely ran the model several times without signing in at all (not via GitHub, not via anything). But now it says "Sign in to run".
(available without sign-in) FLUX.1 [schnell] (Apache 2.0, open weights, step distilled): https://fal.ai/models/fal-ai/flux/schnell
(requires sign-in) FLUX.1 [dev] (non-commercial, open weights, guidance distilled): https://fal.ai/models/fal-ai/flux/dev
FLUX.1 [pro] (closed source [only available thru APIs], SOTA, raw): https://fal.ai/models/fal-ai/flux-pro