Meta released Llama just when OpenAI was so hot and its valuation was going through the roof. Speculating, but Meta probably thought the model not competitive enough to keep as a secret weapon but well good enough to commercially damage OpenAI who were a sudden competitor for most-valued-company?
In the same way you can imagine the Chinese government pushing the release of deepseek etc to make sure no one thinks the US has “won” and to keep everyone aware that a foreign model might leapfrog in the short term future etc.
At some point though if OpenAI/Antropic/Google plateau or go bust then the open source sponsorship becomes less likely, as making it open source was a weapon not a principle.
In the same way you can imagine the Chinese government pushing the release of deepseek etc to make sure no one thinks the US has “won” and to keep everyone aware that a foreign model might leapfrog in the short term future etc.
At some point though if OpenAI/Antropic/Google plateau or go bust then the open source sponsorship becomes less likely, as making it open source was a weapon not a principle.