NATURE

OpenAI’s o3 tops new AI league table for answering scientific questions

The AI tools Gemini and DeepSeek came behind o3 in a league table of responses to scientific questions.Credit: Andrey Rudakov/Bloomberg via Gettyo3, an artificial intelligence (AI) model developed by the creators of ChatGPT, has been ranked the best AI tool...

NEWS

Why is Trump targeting Brazil

Caio QueroBBC Brasil editorGetty ImagesUS President Donald Trump and Jair Bolsonaro, his former counterpart in Brazil, have a closer relationshipA message from US President Donald Trump on Wednesday landed like a grenade in Brazil, bringing the relationship between the two...

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