Some
interesting drama apparently going on with 1.5, as RunwayML put it onto HuggingFace, only for StabilityAI to request a takedown, claiming it was a leak of their IP. Runway's CEO
made a statement in that discussion about SD's open-source license, and it looks like Stability's legal team went and reverted the takedown request. Seems like there's been plenty of drama going on in Discord and Reddit spaces, but I don't know all the details, maybe somebody else can put all the pieces together.
Anyways, it looks like version 1.5 was trained on 595k steps from v1.2, with 1.4 being just 225k steps from 1.2. It'll be interesting to see if this causes any significant improvement or change in generation quality. If you want to grab 1.5 directly, keep in mind you'll need to visit
the main 1.5 page, have a HuggingFace account, and agree to the terms and conditions and all that jazz. Looks like there's a torrent for it
here.