I really wonder how long the current era of giving models away for free can last. How is this sensible from a business perspective? Facebook got burned by iOS and now engage in what would otherwise look like irrational behavior to avoid being locked into a supplier again, but even then, they don't really need to give Llama away for free. They could train and use it for themselves just fine.
If you started to copy what they released in May immediately after release (DeepSeek-V2, which already contained non-trivial architecture innovation - MLA), you'd likely have slightly inferior but mostly on par optimized implementation maybe after some months. And here you go: DeepSeek-V3, try to play the catch up game again!
If you don't replicate their engineering work then your cost would be 10x~20x higher, which renders the entire point moot.
As long as the team can continue this trend there is no hope for copycats. And they are trying to "hijack" the mind of chip designers, too, see the "suggestions to chip manufactures" section. If they succeed you need to beat them in their own game.