On Wednesday, Enterprise AI model-maker Cohere said it raised an additional $100 million — bumping its valuation to$7 billion — in an extension to a round announced in August. The August round was an oversubscribed $500 million round at a$6.8 billion valuation, the company said at the time.Cohere also announced an interesting twist on a partnership. While competitor OpenAI just nabbed an up-to $100 billion investment from the biggest GPU player, Nvidia, Cohere has signed a deal with AMD, which is one of i ...