The open model ecosystem lives alongside the closed models perfectly fine. they don't conflict or detract. neither is wrong or better, imo, & they serve very different purposes.
they have their SaaS options to bank on & they also ship some OSS. nothing new happening here at all. same ol' internets.
It's not a SOTA model. Also, OpenAI has been losing researchers to Meta. Seems to be a play at both market dominance (denying competitors revenue) and reputation repair (staff retention)