Open this photo in gallery:Cohere CEO Aidan Gomez speaks at the All In conference in Montreal last year. He's attending three large corporate events next week, including this year's All In, which could delay closing the financing deal.Christopher Katsarov/The Canadian PressCohere Inc. is in advanced talks to raise between US$2-billion and US$3-billion, including financing from the Canadian government and existing backers, according to four sources familiar with the matter. The deal would value t...