China’s dominance of open-source AI faces biggest test yet in OpenAI

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OpenAI unveiled two new open-source AI models, GPT-OSS-120b and GPT-OSS-20b, marking its first public code release since GPT-2 in late 2019. Many see the move as a huge challenge to China’s dominance in open-source models. Sam Altman, co-founder and CEO, hailed the launch as “a big deal,” writing on the X platform that these are “the best and most usable open models in the world.” The company said both models deliver performance on par with its smaller o-series reasoning models, o4-mini and o3-m...