OpenAI's Altman won't do IPO this year, calls AI extinction risk 'unacceptable'

By Lisa BaertleinOpenAI will not go public in 2026, Chief Executive Sam Altman said in remarks published on Saturday, citing safety concerns over artificial intelligence that render "unacceptable" even a 10% risk that AI could cause human extinction by decade's end.The comments come as more U.S. la…