Artificial intelligence giant Anthropic, the company behind the popular Claude chatbot, has filed papers to sell shares to the public for the first time.
Luiz Inácio Lula da Silva has been re-elected president of Brazil, the electoral authority has said, in a result that defied poll predictions - but his opponent has refused to accept the result.
Serbia's long-serving pro-Russian leader has urged his supporters to avoid "killings" after he conceded defeat to a student-led movement at the election.