The "open source nature" this time is different. "Open source" models are not actually open source, in the sense that the community can't contribute to their development. At best they're just proprietary freeware. Thus, the continuity of "open source" models depends purely on how long their sponsors sustain funding. If Meta or Alibaba or Tencent decide tomorrow that they're no longer going to fund this stuff, then we're in real trouble, much more than when Red Hat drops the ball.
I'd say Meta is the most important player here. Pretty much all the "open source" models are built in Llama in one way or the other. The only reason Llama exists is because Meta wants to commoditize AI in order to prevent the likes of OpenAI from overtaking them later. If Meta one day no longer believes in this strategy for whatever reason, then everybody is in serious trouble.
I'd say Meta is the most important player here. Pretty much all the "open source" models are built in Llama in one way or the other. The only reason Llama exists is because Meta wants to commoditize AI in order to prevent the likes of OpenAI from overtaking them later. If Meta one day no longer believes in this strategy for whatever reason, then everybody is in serious trouble.