If you are talking about image generation than that would probably be Nvidia's eDeff-i. It effectively combines the strengths of Dall-e2 and Imagen while adding some of Nvidias other AI functionality.
Discussion
I'm enjoying Firefly too. It's good but not Midjourney level good
Ill have to take a look as Ive only used Automatic1111's SD.
Firefly is free so far while Midjourney is not but with Firefly there's a waitlist. I got in a week back. It's fun
Oh it looks pretty cool! It has video editing 👌
Here is another interestinv one that will be coming out at some point: https://research.nvidia.com/labs/dir/magic3d/
Yeah, I've been waiting