Musk-led group makes unsolicited bid to control OpenAI, Altman says 'No thanks' / OpenAI's Altman Says Musk 'Probably Just Trying to Slow Us Down' / SoftBank's Son and OpenAI's Altman bet on AI -- and each other / OpenAI CEO Altman signs deal with South Korean tech giant Kakao after DeepSeek upset / OpenAI's Altman clinches deal with Kakao, second major Asian alliance this week / SoftBank's Son, OpenAI's Altman to Unveil Japan AI Thrust / OpenAI's Altman says Chinese rival DeepSeek's AI model 'impressive' / OpenAI's Altman vows 'better models' as China's DeepSeek disrupts global race / 'The future is going to be harder than the past': OpenAI's Altman and Brock address high-profile resignation / Altman handpicked for Homeland Security's AI safety board