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SpaceXAI Releases Grok 4.5 Model Triple Size of Predecessor
SpaceXAI released Grok 4.5 on Wednesday after completing a record IPO and $60 billion acquisition. Anthropic and OpenAI faced recent restrictions and delays on advanced models. U.S. and Chinese officials are weighing limits on cross-border access to top AI systems.
Jul 9, 5:13 AM·1m read1 source
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SpaceXAI released Grok 4.5 on Wednesday. The model is triple the size of its predecessor. The company had completed a record-breaking IPO and a $60 billion acquisition of Cursor before the launch. Elon Musk stated that another model nearly twice the size of Grok 4.5 is scheduled for next month.
Anthropic's Fable and Mythos models were restricted in June for nearly three weeks over security concerns. OpenAI released the Sol model after a voluntary delay tied to government consultations. Z.ai's GLM-5.2 is available for free download and performs at the level of the most expensive American models.
Z.ai founder Jie Tang predicted that China will reach a Fable-class model before the first quarter of 2027. President Trump initially took a laissez-faire approach to AI regulation. Commerce Secretary Howard Lutnick sent letters to Anthropic regarding model restrictions.
U.S. officials are considering measures such as export controls to limit Chinese access to American models. Chinese authorities met with top tech firms over the past month to discuss restricting overseas access to the country's most advanced AI models.
An outside adviser said the possibilities for regulatory approaches remain wide open. An insider said AI is already deeply integrated into both countries' intelligence and military operations.
